VPP-1504: Remove JVPP

As part of JVPP migration this removes JVPP completely from VPP.

Change-Id: I6b74e7961aa474ae471e63fe43a624cd9fc3659b
Signed-off-by: Michal Cmarada <mcmarada@cisco.com>

18 files changed, 0 insertions, 3469 deletions

diff --git a/extras/japi/java/jvpp/gen/jvppgen/__init__.py b/extras/japi/java/jvpp/gen/jvppgen/__init__.py
deleted file mode 100644
index e69de29bb2d..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/__init__.py
+++ /dev/null
diff --git a/extras/japi/java/jvpp/gen/jvppgen/callback_gen.py b/extras/japi/java/jvpp/gen/jvppgen/callback_gen.py
deleted file mode 100755
index b1ad2013372..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/callback_gen.py
+++ /dev/null
@@ -1,73 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jvpp_model import is_request, is_dump, is_control_ping, is_control_ping_reply
-
-
-def generate_callbacks(work_dir, model, logger):
-    json_api_files = model.json_api_files
-    logger.debug("Generating Callback interfaces for %s" % json_api_files)
-    plugin_package = model.plugin_package
-
-    callbacks = []
-    for msg in model.messages:
-        name = msg.java_name_upper
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        if is_dump(msg) or is_request(msg):
-            continue
-
-        callbacks.append("%s.callback.%sCallback" % (plugin_package, name))
-        callback = _CALLBACK_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            json_filename=json_api_files,
-            name=name)
-
-        with open("%s/%sCallback.java" % (work_dir, name), "w") as f:
-            f.write(callback)
-
-    plugin_name = model.plugin_java_name
-    with open("%s/JVpp%sGlobalCallback.java" % (work_dir, plugin_name), "w") as f:
-        f.write(_GLOBAL_CALLBACK_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            json_filename=json_api_files,
-            plugin_name=plugin_name,
-            callbacks=", ".join(callbacks)
-        ))
-
-_CALLBACK_TEMPLATE = Template("""package $plugin_package.callback;
-
-/**
- * <p>Represents callback for plugin's api message.
- * <br>It was generated by jvppgen/callback_gen.py based on $json_filename.
- */
-public interface ${name}Callback extends io.fd.vpp.jvpp.callback.JVppCallback {
-
-    void on${name}(${plugin_package}.dto.${name} reply);
-}
-""")
-
-_GLOBAL_CALLBACK_TEMPLATE = Template("""package $plugin_package.callback;
-
-/**
- * <p>Global aggregated callback interface.
- * <br>It was generated by jvppgen/callback_gen.py based on $json_filename.
- */
-public interface JVpp${plugin_name}GlobalCallback extends io.fd.vpp.jvpp.callback.ControlPingCallback, $callbacks {
-}
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/dto_gen.py b/extras/japi/java/jvpp/gen/jvppgen/dto_gen.py
deleted file mode 100755
index cbd969d51fe..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/dto_gen.py
+++ /dev/null
@@ -1,231 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from string import Template
-
-from jvpp_common_gen import generate_hash_code, generate_equals, generate_to_string, generate_fields
-from jvpp_model import is_request, is_reply, is_retval, is_dump, is_details, is_event, is_control_ping, \
-    is_control_ping_reply
-
-
-def generate_dtos(work_dir, model, logger):
-    logger.debug("Generating DTOs for %s " % model.json_api_files)
-    _generate_message_dtos(work_dir, model, logger)
-    _generate_dump_reply_wrappers(work_dir, model, logger)
-
-
-def _generate_message_dtos(work_dir, model, logger):
-    for msg in model.messages:
-        logger.debug("Generating DTO for message %s", msg)
-        class_name = msg.java_name_upper
-
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        if is_request(msg):
-            dto = _generate_request_dto(msg, model, base_type="JVppRequest")
-        elif is_dump(msg):
-            dto = _generate_request_dto(msg, model, base_type="JVppDump")
-        elif is_reply(msg) or is_details(msg):
-            dto = _generate_reply_dto(msg, model)
-        elif is_event(msg):
-            dto = _generate_event_dto(msg, model)
-        else:
-            logger.warn("Failed to generate DTO for: %s. Message type is not supported." % msg)
-            continue
-        with open("%s/%s.java" % (work_dir, class_name), "w") as f:
-            f.write(dto)
-
-
-def _generate_request_dto(msg, model, base_type):
-    msg_java_name_upper = msg.java_name_upper
-    fields = msg.fields
-    return _REQUEST_TEMPLATE.substitute(
-        plugin_package=model.plugin_package,
-        json_filename=model.json_api_files,
-        json_definition=msg.doc,
-        class_name=msg_java_name_upper,
-        base_type=base_type,
-        fields=generate_fields(fields),
-        hash_code=generate_hash_code(fields),
-        equals=generate_equals(msg_java_name_upper, fields),
-        to_string=generate_to_string(msg_java_name_upper, fields),
-        send=_generate_send(model, msg))
-
-_REQUEST_TEMPLATE = Template("""
-package $plugin_package.dto;
-
-/**
- * <p>This class represents request DTO.
- * <br>It was generated by dto_gen.py based on $json_filename:
- * <pre>
-$json_definition
- * </pre>
- */
-public final class $class_name implements io.fd.vpp.jvpp.dto.$base_type {
-$fields
-$hash_code
-$equals
-$to_string
-$send
-}
-""")
-
-
-def _generate_send(model, msg):
-    return _SEND_TEMPLATE.substitute(
-        plugin_package=model.plugin_package,
-        plugin_name=model.plugin_java_name,
-        method_name=msg.java_name_lower,
-        args="this" if msg.has_fields else ""
-    )
-
-_SEND_TEMPLATE = Template("""
-    @Override
-    public int send(final io.fd.vpp.jvpp.JVpp jvpp) throws io.fd.vpp.jvpp.VppInvocationException {
-        return (($plugin_package.JVpp${plugin_name})jvpp).$method_name($args);
-    }""")
-
-
-def _generate_reply_dto(msg, model):
-    msg_java_name_upper = msg.java_name_upper
-    # Negative retval is mapped to java exception, so filter it out:
-    fields = filter(lambda field: not is_retval(field), msg.fields)
-    return _REPLY_TEMPLATE.substitute(
-        plugin_package=model.plugin_package,
-        json_filename=model.json_api_files,
-        json_definition=msg.doc,
-        class_name=msg_java_name_upper,
-        request_name=msg.request_java,
-        fields=generate_fields(fields),
-        hash_code=generate_hash_code(fields),
-        equals=generate_equals(msg_java_name_upper, fields),
-        to_string=generate_to_string(msg_java_name_upper, fields))
-
-_REPLY_TEMPLATE = Template("""
-package $plugin_package.dto;
-
-/**
- * <p>This class represents reply DTO.
- * <br>It was generated by jvpp_dto_gen.py based on $json_filename:
- * <pre>
-$json_definition
- * </pre>
- */
-public final class $class_name implements io.fd.vpp.jvpp.dto.JVppReply<$plugin_package.dto.$request_name> {
-$fields
-$hash_code
-$equals
-$to_string
-}
-""")
-
-
-def _generate_event_dto(msg, model):
-    msg_java_name_upper = msg.java_name_upper
-    # Negative retval is mapped to java exception, so filter it out:
-    fields = filter(lambda field: not is_retval(field), msg.fields)
-    return _EVENT_TEMPLATE.substitute(
-        plugin_package=model.plugin_package,
-        json_filename=model.json_api_files,
-        json_definition=msg.doc,
-        class_name=msg_java_name_upper,
-        fields=generate_fields(fields),
-        hash_code=generate_hash_code(fields),
-        equals=generate_equals(msg_java_name_upper, fields),
-        to_string=generate_to_string(msg_java_name_upper, fields))
-
-_EVENT_TEMPLATE = Template("""
-package $plugin_package.dto;
-
-/**
- * <p>This class represents event DTO.
- * <br>It was generated by jvpp_dto_gen.py based on $json_filename:
- * <pre>
-$json_definition
- * </pre>
- */
-public final class $class_name {
-$fields
-$hash_code
-$equals
-$to_string
-}
-""")
-
-
-def _generate_dump_reply_wrappers(work_dir, model, logger):
-    for msg in model.messages:
-        if is_details(msg):
-            logger.debug("Generating ReplyDump DTO for message %s", msg)
-            details_class = msg.java_name_upper
-            dto = _REPLY_DUMP_TEMPLATE.substitute(
-                plugin_package=model.plugin_package,
-                json_filename=model.json_api_files,
-                json_definition=msg.doc,
-                details_class=details_class,
-                details_field=msg.java_name_lower,
-                dump_class=msg.request_java
-            )
-            with open("%s/%sReplyDump.java" % (work_dir, details_class), "w") as f:
-                f.write(dto)
-
-_REPLY_DUMP_TEMPLATE = Template("""
-package $plugin_package.dto;
-
-/**
- * <p>This class represents dump reply wrapper.
- * <br>It was generated by jvpp_dto_gen.py based on $json_filename:
- * <pre>
-$json_definition
- * </pre>
- */
-public final class ${details_class}ReplyDump implements io.fd.vpp.jvpp.dto.JVppReplyDump<${plugin_package}.dto.${dump_class}, ${plugin_package}.dto.${details_class}> {
-
-    public java.util.List<${details_class}> ${details_field} = new java.util.ArrayList<>();
-
-    @Override
-    @io.fd.vpp.jvpp.coverity.SuppressFBWarnings("UWF_UNWRITTEN_PUBLIC_OR_PROTECTED_FIELD")
-    public int hashCode() {
-        return java.util.Objects.hash(${details_field});
-    }
-
-    @Override
-    public boolean equals(final Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-
-        final ${details_class}ReplyDump other = (${details_class}ReplyDump) o;
-
-        if (!java.util.Objects.equals(this.${details_field}, other.${details_field})) {
-            return false;
-        }
-
-        return true;
-    }
-
-    @Override
-    public java.lang.String toString() {
-        return "${details_class}ReplyDump{" +
-                "${details_field}=" + ${details_field} + "}";
-    }
-
-
-}
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/enums_gen.py b/extras/japi/java/jvpp/gen/jvppgen/enums_gen.py
deleted file mode 100755
index 8ba96558428..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/enums_gen.py
+++ /dev/null
@@ -1,74 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from string import Template
-
-from jvpp_model import Enum
-
-
-def generate_enums(work_dir, model, logger):
-    logger.debug("Generating enums for %s " % model.json_api_files)
-
-    for t in model.types:
-        if not isinstance(t, Enum):
-            continue
-        logger.debug("Generating DTO for enum %s", t)
-        type_class_name = t.java_name
-        type_class = _ENUM_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            c_type_name=t.name,
-            json_filename=model.json_api_files,
-            json_definition=t.doc,
-            java_enum_name=type_class_name,
-            constants=_generate_constants(t.constants),
-            value_type=t.value.type.java_name
-        )
-        with open("%s/%s.java" % (work_dir, type_class_name), "w") as f:
-            f.write(type_class)
-
-_ENUM_TEMPLATE = Template("""
-package $plugin_package.types;
-
-/**
- * <p>This class represents $c_type_name enum definition.
- * <br>It was generated by enums_gen.py based on $json_filename:
- * <pre>
-$json_definition
- * </pre>
- */
-public enum $java_enum_name {
-$constants;
-
-    public final $value_type value;
-
-    $java_enum_name(final $value_type value) {
-        this.value = value;
-    }
-    
-    public static $java_enum_name forValue(final $value_type value) {
-        for ($java_enum_name enumeration : $java_enum_name.values()) {
-            if (value == enumeration.value) {
-                return enumeration;
-            }
-        }
-        return null;
-    }
-}
-""")
-
-
-def _generate_constants(constants):
-    return ",\n".join(_CONSTANT_TEMPLATE.substitute(name=c['name'], value=c['value']) for c in constants)
-
-_CONSTANT_TEMPLATE = Template("""    $name($value)""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jni_common_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jni_common_gen.py
deleted file mode 100755
index b52e5ff2d2c..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jni_common_gen.py
+++ /dev/null
@@ -1,482 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jvpp_model import is_array, is_retval, Class, Enum, Union
-
-
-def generate_j2c_identifiers(element, class_ref_name, object_ref_name):
-    identifiers = []
-    for field in element.fields:
-        field_type = field.type
-        identifiers.append(_REQUEST_FIELD_IDENTIFIER_TEMPLATE.substitute(
-            java_name=field.java_name,
-            class_ref_name=class_ref_name,
-            jni_signature=field_type.jni_signature,
-            jni_type=field_type.jni_type,
-            jni_accessor=field_type.jni_accessor,
-            object_ref_name=object_ref_name
-        ))
-    return "".join(identifiers)
-
-_REQUEST_FIELD_IDENTIFIER_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}, "${java_name}", "${jni_signature}");
-    ${jni_type} ${java_name} = (*env)->Get${jni_accessor}Field(env, ${object_ref_name}, ${java_name}FieldId);
-""")
-
-
-# TODO(VPP-1187): do not inline JNI object creation inside message handlers to reduce number of special cases
-def generate_j2c_swap(element, struct_ref_name, is_alias):
-    initialization = []
-    for field in element.fields:
-        initialization.append(generate_j2c_field_swap(field, struct_ref_name, is_alias))
-    return "\n".join(initialization)
-
-
-def generate_j2c_field_swap(field, struct_ref_name, is_alias):
-    if is_array(field):
-        return _generate_j2c_array_swap(field, struct_ref_name, is_alias)
-    else:
-        return _generate_j2c_scalar_swap(field, struct_ref_name, is_alias)
-
-
-def _generate_j2c_array_swap(field, struct_ref_name, is_alias):
-    # TODO(VPP-1186): move the logic to JNI generators
-    base_type = field.type.base_type
-    if isinstance(base_type, (Class, Enum, Union)):
-        return _generate_j2c_object_array_swap(field, struct_ref_name)
-    elif base_type.is_swap_needed:
-        return _generate_j2c_primitive_type_array_swap(field, struct_ref_name)
-    else:
-        return _generate_j2c_primitive_type_array_no_swap(field, struct_ref_name, is_alias)
-
-
-def _generate_j2c_object_array_swap(field, struct_ref_name):
-    field_type = field.type
-    field_reference_name = field.java_name
-    c_name = field.name
-    host = "%sArrayElement" % field_reference_name
-    net = "%s->%s[_i]" % (struct_ref_name, c_name)
-    swap_elements = field_type.get_host_to_net_function(host, net)
-    return _J2C_OBJECT_ARRAY_SWAP_TEMPLATE.substitute(
-        field_reference_name=field_reference_name,
-        field_length_check=_generate_field_length_check(field),
-        swap_elements=swap_elements)
-
-_J2C_OBJECT_ARRAY_SWAP_TEMPLATE = Template("""
-    {
-        if (${field_reference_name}) {
-            size_t _i;
-            jsize cnt = (*env)->GetArrayLength (env, ${field_reference_name});
-            ${field_length_check}
-            for (_i = 0; _i < cnt; _i++) {
-                jobject ${field_reference_name}ArrayElement = (*env)->GetObjectArrayElement(env, ${field_reference_name}, _i);
-                ${swap_elements};
-            }
-        }
-    }
-""")
-
-
-def _generate_j2c_primitive_type_array_swap(field, struct_ref_name):
-    field_reference_name = field.java_name
-    field_type = field.type
-    host = "%sArrayElements[_i]" % field_reference_name
-    net = "%s->%s[_i]" % (struct_ref_name,  field.name)
-    swap_elements = field_type.get_host_to_net_function(host, net)
-    return _J2C_PRIMITIVE_TYPE_ARRAY_SWAP_TEMPLATE.substitute(
-        field_reference_name=field_reference_name,
-        field_length_check=_generate_field_length_check(field),
-        base_type=field_type.base_type.jni_accessor,
-        jni_base_type=field_type.base_type.jni_type,
-        swap_elements=swap_elements
-    )
-
-_J2C_PRIMITIVE_TYPE_ARRAY_SWAP_TEMPLATE = Template("""
-    if (${field_reference_name}) {
-        ${jni_base_type} * ${field_reference_name}ArrayElements = (*env)->Get${base_type}ArrayElements(env, ${field_reference_name}, NULL);
-        size_t _i;
-        jsize cnt = (*env)->GetArrayLength(env, ${field_reference_name});
-        ${field_length_check}
-        for (_i = 0; _i < cnt; _i++) {
-            ${swap_elements};
-        }
-        (*env)->Release${base_type}ArrayElements (env, ${field_reference_name}, ${field_reference_name}ArrayElements, 0);
-    }
-    """)
-
-
-def _generate_j2c_primitive_type_array_no_swap(field, struct_ref_name, is_alias):
-    field_type = field.type
-    if not is_alias:
-        template = _J2C_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE
-    else:
-        template = _J2C_ALIAS_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE
-
-    return template.substitute(
-        field_reference_name=field.java_name,
-        field_length_check=_generate_field_length_check(field),
-        base_type=field_type.base_type.jni_accessor,
-        jni_base_type=field_type.base_type.jni_type,
-        struct_reference_name=struct_ref_name,
-        c_name=field.name
-    )
-
-_J2C_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE = Template("""
-    if (${field_reference_name}) {
-        jsize cnt = (*env)->GetArrayLength (env, ${field_reference_name});
-        ${field_length_check}
-        (*env)->Get${base_type}ArrayRegion(env, ${field_reference_name}, 0, cnt, (${jni_base_type} *)${struct_reference_name}->${c_name});
-    }
-""")
-
-
-_J2C_ALIAS_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE = Template("""
-    if (${field_reference_name}) {
-        jsize cnt = (*env)->GetArrayLength (env, ${field_reference_name});
-        ${field_length_check}
-        (*env)->Get${base_type}ArrayRegion(env, ${field_reference_name}, 0, cnt, (${jni_base_type} *)${struct_reference_name});
-    }
-""")
-
-
-def _generate_field_length_check(field):
-    # Enforce max length if array has fixed length or uses variable length syntax
-    field_length = str(field.array_len)
-    if field.array_len_field:
-        field_length = field.array_len_field.java_name
-
-    # TODO: remove when ZLAs without length field are disabled
-    if field_length != "0":
-        return _FIELD_LENGTH_CHECK.substitute(field_length=field_length)
-    else:
-        return ""
-
-
-# Make sure we do not write more elements that are expected
-_FIELD_LENGTH_CHECK = Template("""
-        size_t max_size = ${field_length};
-        if (cnt > max_size) cnt = max_size;""")
-
-
-def _generate_j2c_scalar_swap(field, struct_ref_name, is_alias):
-    field_type = field.type
-    if field_type.is_swap_needed:
-        host = field.java_name
-        if not is_alias:
-            net = "%s->%s" % (struct_ref_name, field.name)
-            if field_type.name == "string":
-                net = "%s->%s" % (struct_ref_name, field.name)
-                return "    _host_to_net_%s(env, %s, (vl_api_string_t *) &%s);" % (field_type.name, host, net)
-            else:
-                return "    %s;" % field_type.get_host_to_net_function(host, net)
-        else:
-            net = "%s" % struct_ref_name
-            return "    *%s;" % field_type.get_host_to_net_function(host, net)
-    else:
-        return "    %s->%s = %s;" % (struct_ref_name, field.name, field.java_name)
-
-
-def generate_c2j_swap(element, object_ref_name, struct_ref_name, is_alias):
-    msg_java_name = element.java_name_lower
-    initialization = []
-    for field in element.fields:
-        if is_retval(field):
-            # For retval don't generate setters and generate retval check
-            continue
-        elif is_array(field):
-            initialization.append(_generate_c2j_array_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias))
-        else:
-            initialization.append(_generate_c2j_scalar_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias))
-    return "".join(initialization)
-
-
-def _generate_c2j_array_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias):
-    # TODO(VPP-1186): move the logic to JNI generators
-    base_type = field.type.base_type
-    if isinstance(base_type, (Class, Union)):
-        return _generate_c2j_object_array_swap(msg_java_name, field, object_ref_name, struct_ref_name)
-    elif isinstance(base_type, Enum):
-        return _generate_c2j_enum_array_swap(msg_java_name, field, object_ref_name, struct_ref_name)
-    elif base_type.is_swap_needed:
-        return _generate_c2j_primitive_type_array_swap(msg_java_name, field, object_ref_name, struct_ref_name)
-    else:
-        return _generate_c2j_primitive_type_array_no_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias)
-
-
-def _generate_c2j_object_array_swap(msg_java_name, field, object_ref_name, struct_ref_name):
-    field_type = field.type
-    return _C2J_OBJECT_ARRAY_SWAP_TEMPLATE.substitute(
-        field_reference_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_name=field_type.base_type.jni_name,
-        field_length=_generate_array_length(field, struct_ref_name),
-        net_to_host_function=field_type.net_to_host_function,
-        struct_ref_name=struct_ref_name,
-        object_ref_name=object_ref_name,
-        c_name=field.name
-    )
-
-_C2J_OBJECT_ARRAY_SWAP_TEMPLATE = Template("""
-    jfieldID ${field_reference_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${field_reference_name}", "${jni_signature}");
-    {
-        jclass ${field_reference_name}Class = (*env)->FindClass(env, "${jni_name}");
-        jobjectArray ${field_reference_name} = (*env)->NewObjectArray(env, ${field_length}, ${field_reference_name}Class, 0);
-        jmethodID ${field_reference_name}Constructor = (*env)->GetMethodID(env, ${field_reference_name}Class, "<init>", "()V");
-        unsigned int _i;
-        for (_i = 0; _i < ${field_length}; _i++) {
-            jobject ${field_reference_name}ArrayElement = (*env)->NewObject(env, ${field_reference_name}Class,  ${field_reference_name}Constructor);
-            ${net_to_host_function}(env, &(${struct_ref_name}->${c_name}[_i]), ${field_reference_name}ArrayElement);
-            (*env)->SetObjectArrayElement(env, ${field_reference_name}, _i, ${field_reference_name}ArrayElement);
-            (*env)->DeleteLocalRef(env, ${field_reference_name}ArrayElement);
-        }
-        (*env)->SetObjectField(env, ${object_ref_name}, ${field_reference_name}FieldId, ${field_reference_name});
-        (*env)->DeleteLocalRef(env, ${field_reference_name});
-    }
-""")
-
-
-def _generate_c2j_enum_array_swap(msg_java_name, field, object_ref_name, struct_ref_name):
-    field_type = field.type
-    base_type = field_type.base_type
-    return _C2J_ENUM_ARRAY_SWAP_TEMPLATE.substitute(
-        field_reference_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_name=base_type.jni_name,
-        field_length=_generate_array_length(field, struct_ref_name),
-        net_to_host_function=field_type.net_to_host_function,
-        jni_signature_enum_value=base_type.value.type.jni_signature,
-        struct_ref_name=struct_ref_name,
-        object_ref_name=object_ref_name,
-        c_name=field.name
-    )
-
-_C2J_ENUM_ARRAY_SWAP_TEMPLATE = Template("""
-    jfieldID ${field_reference_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${field_reference_name}", "${jni_signature}");
-    {
-        jclass ${field_reference_name}Class = (*env)->FindClass(env, "${jni_name}");
-        jobjectArray ${field_reference_name} = (*env)->NewObjectArray(env, ${field_length}, ${field_reference_name}Class, 0);
-        jmethodID ${field_reference_name}Constructor = (*env)->GetStaticMethodID(env, ${field_reference_name}Class, "forValue", "(${jni_signature_enum_value})${jni_signature}");
-        unsigned int _i;
-        for (_i = 0; _i < ${field_length}; _i++) {
-            jobject ${field_reference_name}ArrayElement = (*env)->CallStaticObjectMethod(env, ${field_reference_name}Class, ${field_reference_name}Constructor, ${net_to_host_function}(${struct_ref_name}->${c_name}[_i]));
-            (*env)->SetObjectArrayElement(env, ${field_reference_name}, _i, ${field_reference_name}ArrayElement);
-            (*env)->DeleteLocalRef(env, ${field_reference_name}ArrayElement);
-        }
-        (*env)->SetObjectField(env, ${object_ref_name}, ${field_reference_name}FieldId, ${field_reference_name});
-        (*env)->DeleteLocalRef(env, ${field_reference_name});
-    }
-""")
-
-
-def _generate_c2j_primitive_type_array_swap(msg_java_name, field, object_ref_name, struct_ref_name):
-    field_type = field.type
-    return _C2J_PRIMITIVE_TYPE_ARRAY_SWAP_TEMPLATE.substitute(
-        field_reference_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_type=field_type.jni_type,
-        base_type=field_type.base_type.jni_accessor,
-        field_length=_generate_array_length(field, struct_ref_name),
-        jni_base_type=field_type.base_type.jni_type,
-        object_ref_name=object_ref_name,
-        struct_ref_name=struct_ref_name,
-        net_to_host_function=field_type.net_to_host_function,
-        c_name=field.name
-    )
-
-_C2J_PRIMITIVE_TYPE_ARRAY_SWAP_TEMPLATE = Template("""
-    jfieldID ${field_reference_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${field_reference_name}", "${jni_signature}");
-    {
-        ${jni_type} ${field_reference_name} = (*env)->New${base_type}Array(env, ${field_length});
-        ${jni_base_type} * ${field_reference_name}ArrayElements = (*env)->Get${base_type}ArrayElements(env, ${field_reference_name}, NULL);
-        unsigned int _i;
-        for (_i = 0; _i < ${field_length}; _i++) {
-            ${field_reference_name}ArrayElements[_i] = ${net_to_host_function}(${struct_ref_name}->${c_name}[_i]);
-        }
-
-        (*env)->Release${base_type}ArrayElements(env,  ${field_reference_name}, ${field_reference_name}ArrayElements, 0);
-        (*env)->SetObjectField(env, ${object_ref_name}, ${field_reference_name}FieldId, ${field_reference_name});
-        (*env)->DeleteLocalRef(env, ${field_reference_name});
-    }
-""")
-
-
-def _generate_c2j_primitive_type_array_no_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias):
-    field_type = field.type
-    if not is_alias:
-        template = _C2J_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE
-    else:
-        template = _C2J_ALIAS_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE
-    return template.substitute(
-        field_reference_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_type=field_type.jni_type,
-        base_type=field_type.base_type.jni_accessor,
-        field_length=_generate_array_length(field, struct_ref_name),
-        jni_base_type=field_type.base_type.jni_type,
-        object_ref_name=object_ref_name,
-        struct_ref_name=struct_ref_name,
-        c_name=field.name
-    )
-
-_C2J_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE = Template("""
-    jfieldID ${field_reference_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${field_reference_name}", "${jni_signature}");
-    ${jni_type} ${field_reference_name} = (*env)->New${base_type}Array(env, ${field_length});
-    (*env)->Set${base_type}ArrayRegion(env, ${field_reference_name}, 0, ${field_length}, (const ${jni_base_type}*)${struct_ref_name}->${c_name});
-    (*env)->SetObjectField(env, ${object_ref_name}, ${field_reference_name}FieldId, ${field_reference_name});
-    (*env)->DeleteLocalRef(env, ${field_reference_name});
-""")
-
-
-_C2J_ALIAS_PRIMITIVE_TYPE_ARRAY_NO_SWAP_TEMPLATE = Template("""
-    jfieldID ${field_reference_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${field_reference_name}", "${jni_signature}");
-    ${jni_type} ${field_reference_name} = (*env)->New${base_type}Array(env, ${field_length});
-    (*env)->Set${base_type}ArrayRegion(env, ${field_reference_name}, 0, ${field_length}, (const ${jni_base_type}*)${struct_ref_name});
-    (*env)->SetObjectField(env, ${object_ref_name}, ${field_reference_name}FieldId, ${field_reference_name});
-    (*env)->DeleteLocalRef(env, ${field_reference_name});
-""")
-
-
-def _generate_array_length(field, struct_ref_name):
-    if field.array_len_field:
-        len_field = field.array_len_field
-        if len_field.type.is_swap_needed:
-            return "%s(%s->%s)" % (len_field.type.host_to_net_function, struct_ref_name, len_field.name)
-        else:
-            return "%s->%s" % (struct_ref_name, len_field.name)
-    return field.array_len
-
-
-def _generate_c2j_scalar_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias):
-    field_type = field.type
-    if field_type.is_swap_needed:
-        # TODO(VPP-1186): move the logic to JNI generators
-        if isinstance(field_type, (Class, Union)):
-            return _generate_c2j_object_swap(msg_java_name, field, object_ref_name, struct_ref_name)
-        elif isinstance(field_type, Enum):
-            return _generate_c2j_enum_swap(msg_java_name, field, object_ref_name, struct_ref_name)
-        else:
-            return _generate_c2j_primitive_type_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias)
-    else:
-        return _generate_c2j_primitive_type_no_swap(msg_java_name, field, object_ref_name, struct_ref_name)
-
-
-def _generate_c2j_object_swap(msg_java_name, field, object_ref_name, struct_ref_name):
-    field_type = field.type
-    return _C2J_OBJECT_SWAP_TEMPLATE.substitute(
-        java_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_name=field_type.jni_name,
-        jni_accessor=field_type.jni_accessor,
-        object_ref_name=object_ref_name,
-        struct_ref_name=struct_ref_name,
-        net_to_host_function=field_type.net_to_host_function,
-        c_name=field.name)
-
-_C2J_OBJECT_SWAP_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${java_name}", "${jni_signature}");
-    jclass ${java_name}Class = (*env)->FindClass(env, "${jni_name}");
-    jmethodID ${java_name}Constructor = (*env)->GetMethodID(env, ${java_name}Class, "<init>", "()V");
-    jobject ${java_name} = (*env)->NewObject(env, ${java_name}Class,  ${java_name}Constructor);
-    ${net_to_host_function}(env, &(${struct_ref_name}->${c_name}), ${java_name});
-    (*env)->Set${jni_accessor}Field(env, ${object_ref_name}, ${java_name}FieldId, ${java_name});
-    (*env)->DeleteLocalRef(env, ${java_name});
-""")
-
-
-def _generate_c2j_enum_swap(msg_java_name, field, object_ref_name, struct_ref_name):
-    field_type = field.type
-    return _C2J_ENUM_SWAP_TEMPLATE.substitute(
-        java_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_signature_enum_value=field_type.value.type.jni_signature,
-        jni_name=field_type.jni_name,
-        jni_accessor=field_type.jni_accessor,
-        object_ref_name=object_ref_name,
-        struct_ref_name=struct_ref_name,
-        net_to_host_function=field_type.net_to_host_function,
-        c_name=field.name)
-
-_C2J_ENUM_SWAP_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${java_name}", "${jni_signature}");
-    jclass ${java_name}Class = (*env)->FindClass(env, "${jni_name}");
-    jmethodID ${java_name}Constructor = (*env)->GetStaticMethodID(env, ${java_name}Class, "forValue", "(${jni_signature_enum_value})${jni_signature}");
-    jobject ${java_name} = (*env)->CallStaticObjectMethod(env, ${java_name}Class, ${java_name}Constructor, ${net_to_host_function}(${struct_ref_name}->${c_name}));
-    (*env)->SetObjectField(env, ${object_ref_name}, ${java_name}FieldId, ${java_name});
-    (*env)->DeleteLocalRef(env, ${java_name});
-""")
-
-
-def _generate_c2j_primitive_type_swap(msg_java_name, field, object_ref_name, struct_ref_name, is_alias):
-    field_type = field.type
-    if not is_alias:
-        if field_type.name == "string":
-            template = _C2J_STRING_TYPE_SWAP_TEMPLATE
-        else:
-            template = _C2J_PRIMITIVE_TYPE_SWAP_TEMPLATE
-    else:
-        template = _C2J_ALIAS_PRIMITIVE_TYPE_SWAP_TEMPLATE
-    return template.substitute(
-        java_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_accessor=field_type.jni_accessor,
-        object_ref_name=object_ref_name,
-        net_to_host_function=field_type.net_to_host_function,
-        struct_ref_name=struct_ref_name,
-        c_name=field.name
-    )
-
-_C2J_PRIMITIVE_TYPE_SWAP_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${java_name}", "${jni_signature}");
-    (*env)->Set${jni_accessor}Field(env, ${object_ref_name}, ${java_name}FieldId, ${net_to_host_function}(${struct_ref_name}->${c_name}));
-""")
-
-
-_C2J_STRING_TYPE_SWAP_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${java_name}", "${jni_signature}");
-    (*env)->Set${jni_accessor}Field(env, ${object_ref_name}, ${java_name}FieldId, ${net_to_host_function}(env, (const vl_api_string_t *) &${struct_ref_name}->${c_name}));
-""")
-
-
-_C2J_ALIAS_PRIMITIVE_TYPE_SWAP_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${java_name}", "${jni_signature}");
-    (*env)->Set${jni_accessor}Field(env, ${object_ref_name}, ${java_name}FieldId, ${net_to_host_function}(*${struct_ref_name}));
-""")
-
-
-def _generate_c2j_primitive_type_no_swap(msg_java_name, field, object_ref_name, struct_ref_name):
-    field_type = field.type
-    return _C2J_PRIMITIVE_TYPE_NO_SWAP_TEMPLATE.substitute(
-        java_name=field.java_name,
-        class_ref_name=msg_java_name,
-        jni_signature=field_type.jni_signature,
-        jni_accessor=field_type.jni_accessor,
-        object_ref_name=object_ref_name,
-        struct_ref_name=struct_ref_name,
-        c_name=field.name
-    )
-
-_C2J_PRIMITIVE_TYPE_NO_SWAP_TEMPLATE = Template("""
-    jfieldID ${java_name}FieldId = (*env)->GetFieldID(env, ${class_ref_name}Class, "${java_name}", "${jni_signature}");
-    (*env)->Set${jni_accessor}Field(env, ${object_ref_name}, ${java_name}FieldId, ${struct_ref_name}->${c_name});
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jni_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jni_gen.py
deleted file mode 100755
index ad6c2614062..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jni_gen.py
+++ /dev/null
@@ -1,160 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jni_impl_gen import generate_jni_impl
-from jni_msg_handlers_gen import generate_jni_handlers
-from jni_type_handlers_gen import generate_type_handlers
-from jvpp_model import is_control_ping, is_dump, is_request, is_control_ping_reply
-
-
-def generate_jni(work_dir, model, logger):
-    logger.debug("Generating jvpp C for %s" % model.json_api_files)
-    plugin_name = model.plugin_name
-    messages = model.messages
-
-    with open("%s/jvpp_%s_gen.h" % (work_dir, plugin_name), "w") as f:
-        f.write(_JVPP_C_TEMPLATE.substitute(
-            json_filename=model.json_api_files,
-            class_cache=_generate_class_cache(plugin_name, messages),
-            api_verification=_generate_api_verification(messages),
-            type_handlers=generate_type_handlers(model, logger),
-            jni_implementations=generate_jni_impl(model),
-            msg_handlers=generate_jni_handlers(model),
-            handler_registration=_generate_handler_registration(messages)))
-
-_JVPP_C_TEMPLATE = Template("""/**
- * This file contains JNI bindings for jvpp Java API.
- * It was generated by jvpp_jni_gen.py based on $json_filename.
- */
-$class_cache
-
-$api_verification
-
-// Type handlers
-$type_handlers
-
-// JNI bindings
-$jni_implementations
-
-// Message handlers
-$msg_handlers
-
-$handler_registration
-""")
-
-
-def _generate_class_cache(plugin_name, messages):
-    references = []
-    for msg in messages:
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        references.append((
-            msg.java_name_lower,
-            'io/fd/vpp/jvpp/%s/dto/%s' % (plugin_name, msg.java_name_upper)
-        ))
-
-    references.append(('callbackException', 'io/fd/vpp/jvpp/VppCallbackException'))
-
-    return _CLASS_CACHE_TEMPLATE.substitute(
-        class_references=_generate_class_references(references),
-        create_references=_generate_create_references(references),
-        delete_references=_generate_delete_references(references)
-    )
-
-_CLASS_CACHE_TEMPLATE = Template("""
-// JAVA class reference cache
-$class_references
-
-static int cache_class_references(JNIEnv* env) {
-$create_references
-    return 0;
-}
-
-static void delete_class_references(JNIEnv* env) {
-$delete_references
-}""")
-
-
-def _generate_class_references(references):
-    return "\n".join("jclass %sClass;" % r[0] for r in references)
-
-
-def _generate_create_references(references):
-    items = []
-    for r in references:
-        items.append(_CREATE_GLOBAL_REF_TEMPLATE.substitute(
-            ref_name=r[0],
-            fqn_name=r[1]
-        ))
-    return "".join(items)
-
-_CREATE_GLOBAL_REF_TEMPLATE = Template("""
-    ${ref_name}Class = (jclass)(*env)->NewGlobalRef(env, (*env)->FindClass(env, "${fqn_name}"));
-    if ((*env)->ExceptionCheck(env)) {
-        (*env)->ExceptionDescribe(env);
-        return JNI_ERR;
-    }""")
-
-
-def _generate_delete_references(references):
-    items = []
-    for r in references:
-        items.append(_DELETE_CLASS_INVOCATION_TEMPLATE.substitute(ref_name=r[0]))
-    return "".join(items)
-
-_DELETE_CLASS_INVOCATION_TEMPLATE = Template("""
-    if (${ref_name}Class) {
-        (*env)->DeleteGlobalRef(env, ${ref_name}Class);
-    }""")
-
-
-def _generate_api_verification(messages):
-    items = []
-    for msg in messages:
-        items.append("_(%s_%s) \\" % (msg.name, msg.crc))
-    return _API_VERIFICATION_TEMPLATE.substitute(messages="\n".join(items))
-
-_API_VERIFICATION_TEMPLATE = Template("""
-// List of supported API messages used for verification
-#define foreach_supported_api_message \\
-$messages
-""")
-
-
-def _generate_handler_registration(messages):
-    """
-    Generates msg handler registration for all messages except for dumps and requests.
-    :param messages: collection of VPP API messages.
-    """
-    handlers = []
-    for msg in messages:
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        if is_dump(msg) or is_request(msg):
-            continue
-        name = msg.name
-        crc = msg.crc
-        handlers.append("_(%s_%s, %s) \\" % (name, crc, name))
-    return _HANDLER_REGISTRATION_TEMPLATE.substitute(handlers="\n".join(handlers))
-
-_HANDLER_REGISTRATION_TEMPLATE = Template("""
-// Registration of message handlers in vlib
-#define foreach_api_reply_handler \\
-$handlers
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py
deleted file mode 100755
index 2941778f208..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jni_impl_gen.py
+++ /dev/null
@@ -1,116 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jni_common_gen import generate_j2c_identifiers, generate_j2c_swap
-from jvpp_model import is_dump, is_request, is_control_ping, is_control_ping_reply
-
-
-def generate_jni_impl(model):
-    """
-    Generates JNI bindings for sending dump and request messages.
-    :param model: meta-model of VPP API used for jVPP generation.
-    """
-    jni_impl = []
-    for msg in model.messages:
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control ping managed by jvpp registry.
-            continue
-        if not (is_dump(msg) or is_request(msg)):
-            continue
-        arguments = ""
-        request_class = ""
-        jni_identifiers = ""
-        msg_initialization = ""
-
-        if msg.has_fields:
-            arguments = ", jobject request"
-            request_class = _REQUEST_CLASS_TEMPLATE.substitute(
-                plugin_name=model.plugin_name,
-                java_dto_name=msg.java_name_upper
-            )
-            jni_identifiers = generate_j2c_identifiers(msg, class_ref_name="requestClass", object_ref_name="request")
-            msg_initialization = generate_j2c_swap(msg, struct_ref_name="mp", is_alias=False)
-
-        jni_impl.append(_JNI_IMPL_TEMPLATE.substitute(
-            c_name=msg.name,
-            json_filename=model.json_api_files,
-            json_definition=msg.doc,
-            plugin_name=model.plugin_name,
-            plugin_java_name=model.plugin_java_name,
-            java_method_name=msg.java_name_lower,
-            arguments=arguments,
-            request_class=request_class,
-            jni_identifiers=jni_identifiers,
-            msg_size=_generate_msg_size(msg),
-            crc=msg.crc,
-            msg_initialization=msg_initialization
-        ))
-    return "".join(jni_impl)
-
-
-_JNI_IMPL_TEMPLATE = Template("""
-/**
- * JNI binding for sending ${c_name} message.
- * Generated based on $json_filename:
-$json_definition
- */
-JNIEXPORT jint JNICALL Java_io_fd_vpp_jvpp_${plugin_name}_JVpp${plugin_java_name}Impl_${java_method_name}0
-(JNIEnv * env, jclass clazz${arguments}) {
-    ${plugin_name}_main_t *plugin_main = &${plugin_name}_main;
-    vl_api_${c_name}_t * mp;
-    u32 my_context_id = vppjni_get_context_id (&jvpp_main);
-$request_class
-$jni_identifiers
-
-    // create message:
-    const size_t _size = ${msg_size};
-    mp = vl_msg_api_alloc(_size);
-    memset (mp, 0, _size);
-    mp->_vl_msg_id = ntohs (get_message_id(env, "${c_name}_${crc}"));
-    mp->client_index = plugin_main->my_client_index;
-    mp->context = clib_host_to_net_u32 (my_context_id);
-
-$msg_initialization
-
-    // send message:
-    if (CLIB_DEBUG > 1)
-        clib_warning ("Sending ${c_name} message");
-    vl_msg_api_send_shmem (plugin_main->vl_input_queue, (u8 *)&mp);
-    if ((*env)->ExceptionCheck(env)) {
-        return JNI_ERR;
-    }
-    return my_context_id;
-}""")
-
-# TODO: cache method and field identifiers to achieve better performance
-# https://jira.fd.io/browse/HONEYCOMB-42
-_REQUEST_CLASS_TEMPLATE = Template("""    jclass requestClass = (*env)->FindClass(env, "io/fd/vpp/jvpp/${plugin_name}/dto/${java_dto_name}");
-""")
-
-
-def _generate_msg_size(msg):
-    msg_size = "sizeof(*mp)"
-    _size_components = []
-    for field in msg.fields:
-        # Ignore ZLAs for simplicity (to support them we need to call JNI functions to check actual size)
-        if field.array_len_field:
-            _size_components += " + %s*sizeof(%s)" % (field.array_len_field.java_name, field.type.base_type.vpp_name)
-            # FIXME(VPP-586): for proper nested structures support, we need generate functions computing type sizes
-            # and use it instead of sizeof
-        if field.type.name == "string":
-            _size_components += " + jstr_length(env, %s) * sizeof(u8)" % field.name
-    return msg_size + "".join(_size_components)
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jni_msg_handlers_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jni_msg_handlers_gen.py
deleted file mode 100755
index 5f274a3e1dd..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jni_msg_handlers_gen.py
+++ /dev/null
@@ -1,105 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jni_common_gen import generate_c2j_swap
-from jvpp_model import is_dump, is_request, is_control_ping, is_control_ping_reply, is_retval
-
-
-def generate_jni_handlers(model):
-    """
-    Generates msg handlers for all messages except for dumps and requests (handled by vpp, not client).
-    :param model: meta-model of VPP API used for jVPP generation.
-    """
-    jni_impl = []
-    for msg in model.messages:
-        msg_name = msg.name
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control ping managed by jvpp registry.
-            continue
-        if is_dump(msg) or is_request(msg):
-            continue
-
-        jni_impl.append(_MSG_HANDLER_TEMPLATE.substitute(
-            c_name=msg_name,
-            json_filename=model.json_api_files,
-            json_definition=msg.doc,
-            plugin_name=model.plugin_name,
-            err_handler=_generate_error_handler(msg),
-            class_ref_name=msg.java_name_lower,
-            dto_name=msg.java_name_upper,
-            dto_setters=generate_c2j_swap(msg, object_ref_name="dto", struct_ref_name="mp", is_alias=False)
-        ))
-    return "".join(jni_impl)
-
-_MSG_HANDLER_TEMPLATE = Template("""
-/**
- * Handler for ${c_name} message.
- * Generated based on $json_filename:
-$json_definition
- */
-static void vl_api_${c_name}_t_handler (vl_api_${c_name}_t * mp)
-{
-    ${plugin_name}_main_t *plugin_main = &${plugin_name}_main;
-    JNIEnv *env = jvpp_main.jenv;
-    jthrowable exc;
-$err_handler
-
-    if (CLIB_DEBUG > 1)
-        clib_warning ("Received ${c_name} event message");
-
-    jmethodID constructor = (*env)->GetMethodID(env, ${class_ref_name}Class, "<init>", "()V");
-
-    // User does not have to provide callbacks for all VPP messages.
-    // We are ignoring messages that are not supported by user.
-    (*env)->ExceptionClear(env); // just in case exception occurred in different place and was not properly cleared
-    jmethodID callbackMethod = (*env)->GetMethodID(env, plugin_main->callbackClass, "on${dto_name}", "(Lio/fd/vpp/jvpp/${plugin_name}/dto/${dto_name};)V");
-    exc = (*env)->ExceptionOccurred(env);
-    if (exc) {
-        clib_warning("Unable to extract on${dto_name} method reference from ${plugin_name} plugin's callbackClass. Ignoring message.\\n");
-        (*env)->ExceptionDescribe(env);
-        (*env)->ExceptionClear(env);
-        return;
-    }
-
-    jobject dto = (*env)->NewObject(env, ${class_ref_name}Class, constructor);
-$dto_setters
-
-    (*env)->CallVoidMethod(env, plugin_main->callbackObject, callbackMethod, dto);
-    // free DTO as per http://stackoverflow.com/questions/1340938/memory-leak-when-calling-java-code-from-c-using-jni
-    (*env)->DeleteLocalRef(env, dto);
-}""")
-
-
-def _generate_error_handler(msg):
-    err_handler = ""
-    for field in msg.fields:
-        if is_retval(field):
-            err_handler = _ERR_HANDLER_TEMPLATE.substitute(name=msg.name)
-    return err_handler
-
-# Code fragment for checking result of the operation before sending request reply.
-# Error checking is optional (some messages, e.g. detail messages do not have retval field).
-_ERR_HANDLER_TEMPLATE = Template("""
-    // for negative result don't send callback message but send error callback
-    if (mp->retval<0) {
-        call_on_error("${name}", mp->context, mp->retval, plugin_main->callbackClass, plugin_main->callbackObject, callbackExceptionClass);
-        return;
-    }
-    if (mp->retval == VNET_API_ERROR_IN_PROGRESS) {
-        clib_warning("Result in progress");
-        return;
-    }""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py
deleted file mode 100755
index 59aaf95065a..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jni_type_handlers_gen.py
+++ /dev/null
@@ -1,235 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jni_common_gen import generate_j2c_swap, generate_j2c_field_swap, generate_j2c_identifiers, generate_c2j_swap
-from jvpp_model import Class, Enum, Union
-
-
-def generate_type_handlers(model, logger):
-    """
-    Generates host-to-net and net-to-host functions for all custom types defined in the VPP API
-    :param model: meta-model of VPP API used for jVPP generation.
-    :param logger: jVPP logger
-    """
-    type_handlers = []
-    for t in model.types:
-        #TODO(VPP-1186): move the logic to JNI generators
-        if isinstance(t, Class):
-            _generate_class(model, t, type_handlers)
-        elif isinstance(t, Enum):
-            _generate_enum(model, t, type_handlers)
-        elif isinstance(t, Union):
-            _generate_union(model, t, type_handlers)
-        else:
-            logger.debug("Skipping custom JNI type handler generation for %s", t)
-
-    return "\n".join(type_handlers)
-
-
-def _generate_class(model, t, type_handlers):
-    ref_name = t.java_name_lower
-    if t.name in model._aliases:
-        is_alias = True
-    else:
-        is_alias = False
-
-    type_handlers.append(_TYPE_HOST_TO_NET_TEMPLATE.substitute(
-        c_name=t.name,
-        json_filename=model.json_api_files,
-        json_definition=t.doc,
-        type_reference_name=ref_name,
-        class_FQN=t.jni_name,
-        jni_identifiers=generate_j2c_identifiers(t, class_ref_name="%sClass" % ref_name, object_ref_name="_host"),
-        type_swap=generate_j2c_swap(t, struct_ref_name="_net", is_alias=is_alias)
-    ))
-    type_handlers.append(_TYPE_NET_TO_HOST_TEMPLATE.substitute(
-        c_name=t.name,
-        json_filename=model.json_api_files,
-        json_definition=t.doc,
-        type_reference_name=ref_name,
-        class_FQN=t.jni_name,
-        type_swap=generate_c2j_swap(t, object_ref_name="_host", struct_ref_name="_net", is_alias=is_alias)
-    ))
-
-_TYPE_HOST_TO_NET_TEMPLATE = Template("""
-/**
- * Host to network byte order conversion for ${c_name} type.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net)
-{
-    jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}");
-$jni_identifiers
-$type_swap
-}""")
-
-_TYPE_NET_TO_HOST_TEMPLATE = Template("""
-/**
- * Network to host byte order conversion for ${c_name} type.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _net_to_host_${c_name}(JNIEnv * env, vl_api_${c_name}_t * _net, jobject _host)
-{
-    jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}");
-$type_swap
-}""")
-
-
-def _generate_enum(model, t, type_handlers):
-    value_type = t.value.type
-    type_handlers.append(_ENUM_NET_TO_HOST_TEMPLATE.substitute(
-        c_name=t.name,
-        json_filename=model.json_api_files,
-        json_definition=t.doc,
-        class_FQN=t.jni_name,
-        jni_signature=value_type.jni_signature,
-        jni_type=value_type.jni_type,
-        jni_accessor=value_type.jni_accessor,
-        swap=_generate_scalar_host_to_net_swap(t.value)
-    ))
-
-    type_handlers.append(_ENUM_HOST_TO_NET_TEMPLATE.substitute(
-        c_name=t.name,
-        json_filename=model.json_api_files,
-        json_definition=t.doc,
-        class_FQN=t.jni_name,
-        jni_type=value_type.jni_type,
-        type_swap=_generate_scalar_net_to_host_swap(t.value)
-    ))
-
-_ENUM_NET_TO_HOST_TEMPLATE = Template("""
-/**
- * Host to network byte order conversion for ${c_name} enum.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net)
-{
-    jclass enumClass = (*env)->FindClass(env, "${class_FQN}");
-    jmethodID getValueMethod = (*env)->GetMethodID(env, enumClass, "ordinal", "()I");
-    ${jni_type} value = (*env)->CallIntMethod(env, _host, getValueMethod);
-    ${swap};
-}""")
-
-_ENUM_HOST_TO_NET_TEMPLATE = Template("""
-/**
- * Network to host byte order conversion for ${c_name} type.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline ${jni_type} _net_to_host_${c_name}(vl_api_${c_name}_t _net)
-{
-    return (${jni_type}) $type_swap
-}""")
-
-
-def _generate_scalar_host_to_net_swap(field):
-    field_type = field.type
-    if field_type.is_swap_needed:
-        return field_type.get_host_to_net_function(field.java_name, "*_net")
-    else:
-        return "*_net = %s" % field.java_name
-
-
-def _generate_scalar_net_to_host_swap(field):
-    field_type = field.type
-    if field_type.is_swap_needed:
-        return "%s((%s) _net);" % (field_type.net_to_host_function, field_type.name)
-    else:
-        return "_net"
-
-
-def _generate_union(model, t, type_handlers):
-    type_handlers.append(_generate_union_host_to_net(model, t))
-    type_handlers.append(_generate_union_net_to_host(model, t))
-
-
-def _generate_union_host_to_net(model, t):
-    swap = []
-    for i, field in enumerate(t.fields):
-        field_type = field.type
-        if t.name in model._aliases:
-            is_alias = True
-        else:
-            is_alias = False
-        swap.append(_UNION_FIELD_HOST_TO_NET_TEMPLATE.substitute(
-            field_index=i,
-            java_name=field.java_name,
-            jni_signature=field_type.jni_signature,
-            jni_type=field_type.jni_type,
-            jni_accessor=field_type.jni_accessor,
-            swap=generate_j2c_field_swap(field, struct_ref_name="_net", is_alias=is_alias)
-        ))
-
-    return _UNION_HOST_TO_NET_TEMPLATE.substitute(
-        c_name=t.name,
-        json_filename=model.json_api_files,
-        json_definition=t.doc,
-        class_FQN=t.jni_name,
-        swap="".join(swap)
-    )
-
-_UNION_FIELD_HOST_TO_NET_TEMPLATE = Template("""
-    if (_activeMember == ${field_index}) {
-        jfieldID fieldId = (*env)->GetFieldID(env, _class, "${java_name}", "${jni_signature}");
-        ${jni_type} ${java_name} = (*env)->Get${jni_accessor}Field(env, _host, fieldId);
-    ${swap}
-    }""")
-
-_UNION_HOST_TO_NET_TEMPLATE = Template("""
-/**
- * Host to network byte order conversion for ${c_name} union.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _host_to_net_${c_name}(JNIEnv * env, jobject _host, vl_api_${c_name}_t * _net)
-{
-    jclass _class = (*env)->FindClass(env, "${class_FQN}");
-
-    jfieldID _activeMemberFieldId = (*env)->GetFieldID(env, _class, "_activeMember", "I");
-    jint _activeMember = (*env)->GetIntField(env, _host, _activeMemberFieldId);
-$swap
-}""")
-
-
-def _generate_union_net_to_host(model, t):
-    if t.name in model._aliases:
-        is_alias = True
-    else:
-        is_alias = False
-    return _UNION_NET_TO_HOST_TEMPLATE.substitute(
-        c_name=t.name,
-        json_filename=model.json_api_files,
-        json_definition=t.doc,
-        type_reference_name=t.java_name_lower,
-        class_FQN=t.jni_name,
-        swap=generate_c2j_swap(t, object_ref_name="_host", struct_ref_name="_net", is_alias=is_alias)
-    )
-
-_UNION_NET_TO_HOST_TEMPLATE = Template("""
-/**
- * Network to host byte order conversion for ${c_name} union.
- * Generated based on $json_filename:
-$json_definition
- */
-static inline void _net_to_host_${c_name}(JNIEnv * env, vl_api_${c_name}_t * _net, jobject _host)
-{
-    jclass ${type_reference_name}Class = (*env)->FindClass(env, "${class_FQN}");
-$swap
-}""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_callback_facade_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_callback_facade_gen.py
deleted file mode 100644
index ebc552bfda6..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jvpp_callback_facade_gen.py
+++ /dev/null
@@ -1,289 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from string import Template
-
-from jvpp_model import is_control_ping, is_dump, is_request, is_event, is_control_ping_reply
-
-
-def generate_callback_facade(work_dir, model, logger):
-    """ Generates callback facade """
-    logger.debug("Generating JVpp callback facade for %s" % model.json_api_files)
-    _generate_ifc(work_dir, model),
-    _generate_impl(work_dir, model)
-    _generate_callback(work_dir, model)
-
-
-def _generate_ifc(work_dir, model):
-    with open("%s/CallbackJVpp%s.java" % (work_dir, model.plugin_java_name), "w") as f:
-        f.write(_IFC_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            json_filename=model.json_api_files,
-            plugin_name=model.plugin_java_name,
-            methods=_generate_ifc_methods(model)
-        ))
-
-_IFC_TEMPLATE = Template("""
-package $plugin_package.callfacade;
-
-/**
- * <p>Callback Java API representation of $plugin_package plugin.
- * <br>It was generated by jvpp_callback_facade_gen.py based on $json_filename.
- */
-public interface CallbackJVpp${plugin_name} extends io.fd.vpp.jvpp.notification.EventRegistryProvider, java.lang.AutoCloseable {
-
-    // TODO add send
-
-$methods
-}
-""")
-
-
-def _generate_ifc_methods(model):
-    plugin_package = model.plugin_package
-    methods = []
-    for msg in model.messages:
-        if is_control_ping(msg):
-            # Skip control ping managed by jvpp registry.
-            continue
-        if not (is_dump(msg) or is_request(msg)):
-            # Skip replies and messages that do not not have replies (e.g events/counters).
-            continue
-        template = _IFC_NO_ARG_METHOD_TEMPLATE
-        if msg.has_fields:
-            template = _IFC_METHOD_TEMPLATE
-        methods.append(template.substitute(
-            name=msg.java_name_lower,
-            plugin_package=plugin_package,
-            request=msg.java_name_upper,
-            reply=msg.reply_java
-        ))
-    return "\n".join(methods)
-
-_IFC_NO_ARG_METHOD_TEMPLATE = Template(
-    """    void $name($plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException;""")
-
-_IFC_METHOD_TEMPLATE = Template(
-    """    void $name($plugin_package.dto.$request request, $plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException;""")
-
-
-def _generate_impl(work_dir, model):
-    with open("%s/CallbackJVpp%sFacade.java" % (work_dir, model.plugin_java_name), "w") as f:
-        f.write(_IMPL_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            json_filename=model.json_api_files,
-            plugin_name=model.plugin_java_name,
-            methods=_generate_impl_methods(model)
-        ))
-
-_IMPL_TEMPLATE = Template("""
-package $plugin_package.callfacade;
-
-/**
- * <p>Default implementation of Callback${plugin_name}JVpp interface.
- * <br>It was generated by jvpp_callback_facade_gen.py based on $json_filename.
- */
-public final class CallbackJVpp${plugin_name}Facade implements CallbackJVpp${plugin_name} {
-
-    private final $plugin_package.JVpp${plugin_name} jvpp;
-    private final java.util.Map<Integer, io.fd.vpp.jvpp.callback.JVppCallback> callbacks;
-    private final $plugin_package.notification.${plugin_name}EventRegistryImpl eventRegistry = new $plugin_package.notification.${plugin_name}EventRegistryImpl();
-    /**
-     * <p>Create CallbackJVpp${plugin_name}Facade object for provided JVpp instance.
-     * Constructor internally creates CallbackJVppFacadeCallback class for processing callbacks
-     * and then connects to provided JVpp instance
-     *
-     * @param jvpp provided io.fd.vpp.jvpp.JVpp instance
-     *
-     * @throws java.io.IOException in case instance cannot connect to JVPP
-     */
-    public CallbackJVpp${plugin_name}Facade(final io.fd.vpp.jvpp.JVppRegistry registry, final $plugin_package.JVpp${plugin_name} jvpp) throws java.io.IOException {
-        this.jvpp = java.util.Objects.requireNonNull(jvpp,"jvpp is null");
-        this.callbacks = new java.util.HashMap<>();
-        java.util.Objects.requireNonNull(registry, "JVppRegistry should not be null");
-        registry.register(jvpp, new CallbackJVpp${plugin_name}FacadeCallback(this.callbacks, eventRegistry));
-    }
-
-    @Override
-    public $plugin_package.notification.${plugin_name}EventRegistry getEventRegistry() {
-        return eventRegistry;
-    }
-
-    @Override
-    public void close() throws Exception {
-        jvpp.close();
-    }
-
-    // TODO add send()
-
-$methods
-}
-""")
-
-
-def _generate_impl_methods(model):
-    plugin_package = model.plugin_package
-    methods = []
-    for msg in model.messages:
-        if is_control_ping(msg):
-            # Skip control ping managed by jvpp registry.
-            continue
-        if not (is_dump(msg) or is_request(msg)):
-            # Skip replies and messages that do not not have replies (e.g events/counters).
-            continue
-        template = _IMPL_NO_ARG_METHOD_TEMPLATE
-        if msg.has_fields:
-            template = _IMPL_METHOD_TEMPLATE
-        methods.append(template.substitute(
-            name=msg.java_name_lower,
-            plugin_package=plugin_package,
-            request=msg.java_name_upper,
-            reply=msg.reply_java
-        ))
-    return "\n".join(methods)
-
-_IMPL_NO_ARG_METHOD_TEMPLATE = Template(
-    """    public final void $name($plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException {
-        synchronized (callbacks) {
-            callbacks.put(jvpp.$name(), callback);
-        }
-    }
-""")
-
-_IMPL_METHOD_TEMPLATE = Template("""    public final void $name($plugin_package.dto.$request request, $plugin_package.callback.${reply}Callback callback) throws io.fd.vpp.jvpp.VppInvocationException {
-        synchronized (callbacks) {
-            callbacks.put(jvpp.$name(request), callback);
-        }
-    }
-""")
-
-
-def _generate_callback(work_dir, model):
-    with open("%s/CallbackJVpp%sFacadeCallback.java" % (work_dir, model.plugin_java_name), "w") as f:
-        f.write(_CALLBACK_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            json_filename=model.json_api_files,
-            plugin_name=model.plugin_java_name,
-            methods=_generate_callback_methods(model)
-        ))
-
-_CALLBACK_TEMPLATE = Template("""
-package $plugin_package.callfacade;
-
-/**
- * <p>Implementation of JVppGlobalCallback interface for Java Callback API.
- * <br>It was generated by jvpp_callback_facade_gen.py based on $json_filename.
- */
-public final class CallbackJVpp${plugin_name}FacadeCallback implements $plugin_package.callback.JVpp${plugin_name}GlobalCallback {
-
-    private final java.util.Map<Integer, io.fd.vpp.jvpp.callback.JVppCallback> requests;
-    private final $plugin_package.notification.Global${plugin_name}EventCallback eventCallback;
-    private static final java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(CallbackJVpp${plugin_name}FacadeCallback.class.getName());
-
-    public CallbackJVpp${plugin_name}FacadeCallback(final java.util.Map<Integer, io.fd.vpp.jvpp.callback.JVppCallback> requestMap,
-                                      final $plugin_package.notification.Global${plugin_name}EventCallback eventCallback) {
-        this.requests = requestMap;
-        this.eventCallback = eventCallback;
-    }
-
-    @Override
-    public void onError(io.fd.vpp.jvpp.VppCallbackException reply) {
-
-        io.fd.vpp.jvpp.callback.JVppCallback failedCall;
-        synchronized(requests) {
-            failedCall = requests.remove(reply.getCtxId());
-        }
-
-        if(failedCall != null) {
-            try {
-                failedCall.onError(reply);
-            } catch(RuntimeException ex) {
-                ex.addSuppressed(reply);
-                LOG.log(java.util.logging.Level.WARNING, java.lang.String.format("Callback: %s failed while handling exception: %s", failedCall, reply), ex);
-            }
-        }
-    }
-
-    @Override
-    @SuppressWarnings("unchecked")
-    public void onControlPingReply(final io.fd.vpp.jvpp.dto.ControlPingReply reply) {
-
-        io.fd.vpp.jvpp.callback.ControlPingCallback callback;
-        final int replyId = reply.context;
-        synchronized(requests) {
-            callback = (io.fd.vpp.jvpp.callback.ControlPingCallback) requests.remove(replyId);
-        }
-
-        if(callback != null) {
-            callback.onControlPingReply(reply);
-        }
-    }
-
-$methods
-}
-""")
-
-
-def _generate_callback_methods(model):
-    plugin_package = model.plugin_package
-    methods = []
-    for msg in model.messages:
-        if is_dump(msg) or is_request(msg):
-            continue
-        if is_control_ping_reply(msg):
-            # Skip control ping managed by jvpp registry.
-            continue
-
-        # Generate callbacks for all messages except for dumps and requests (handled by vpp, not client).
-        template = _CALLBACK_METHOD_TEMPLATE
-        if is_event(msg):
-            template = _CALLBACK_EVENT_METHOD_TEMPLATE
-        msg_name = msg.java_name_upper
-        methods.append(template.substitute(
-            message=msg_name,
-            callback="%sCallback" % msg_name,
-            plugin_package=plugin_package
-        ))
-    return "\n".join(methods)
-
-_CALLBACK_METHOD_TEMPLATE = Template("""
-    @Override
-    @SuppressWarnings("unchecked")
-    public void on${message}(final $plugin_package.dto.${message} reply) {
-
-        $plugin_package.callback.$callback callback;
-        final int replyId = reply.context;
-        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
-            LOG.fine(java.lang.String.format("Received ${message} event message: %s", reply));
-        }
-        synchronized(requests) {
-            callback = ($plugin_package.callback.$callback) requests.remove(replyId);
-        }
-
-        if(callback != null) {
-            callback.on${message}(reply);
-        }
-    }
-""")
-
-_CALLBACK_EVENT_METHOD_TEMPLATE = Template("""
-    @Override
-    @SuppressWarnings("unchecked")
-    public void on${message}($plugin_package.dto.${message} notification) {
-        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
-            LOG.fine(java.lang.String.format("Received ${message} event message: %s", notification));
-        }
-        eventCallback.on${message}(notification);
-    }
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_common_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_common_gen.py
deleted file mode 100755
index 499adbc3f56..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jvpp_common_gen.py
+++ /dev/null
@@ -1,114 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from string import Template
-
-from jvpp_model import is_array
-
-
-def generate_fields(fields, access_modifier="public"):
-    return "\n".join(_FIELD_TEMPLATE
-                     .substitute(access_modifier=access_modifier, type=f.type.java_name_fqn, name=f.java_name)
-                     for f in fields)
-
-_FIELD_TEMPLATE = Template("""    ${access_modifier} ${type} ${name};""")
-
-
-def generate_hash_code(fields):
-    if len(fields) == 1 and is_array(fields[0]):
-        return _HASH_CODE_SINGLE_ARRAY_TEMPLATE.substitute(array_field=fields[0].java_name)
-    return _HASH_CODE_TEMPLATE.substitute(fields=", ".join(f.java_name for f in fields))
-
-_HASH_CODE_TEMPLATE = Template("""
-    @Override
-    @io.fd.vpp.jvpp.coverity.SuppressFBWarnings("UWF_UNWRITTEN_PUBLIC_OR_PROTECTED_FIELD")
-    public int hashCode() {
-        return java.util.Objects.hash($fields);
-    }""")
-
-_HASH_CODE_SINGLE_ARRAY_TEMPLATE = Template("""
-    @Override
-    @io.fd.vpp.jvpp.coverity.SuppressFBWarnings("UWF_UNWRITTEN_PUBLIC_OR_PROTECTED_FIELD")
-    public int hashCode() {
-        return java.util.Arrays.hashCode($array_field);
-    }""")
-
-
-def generate_equals(class_name, fields):
-    comparisons = []
-    for f in fields:
-        if is_array(f):
-            comparisons.append(_EQUALS_ARRAY_FIELD_TEMPLATE.substitute(field_name=f.java_name))
-        else:
-            comparisons.append(_EQUALS_FIELD_TEMPLATE.substitute(field_name=f.java_name))
-
-    if comparisons:
-        comparisons.insert(0, _EQUALS_OTHER_TEMPLATE.substitute(cls_name=class_name))
-    return _EQUALS_TEMPLATE.substitute(comparisons="\n".join(comparisons))
-
-_EQUALS_TEMPLATE = Template("""
-    @Override
-    public boolean equals(final Object o) {
-        if (this == o) {
-            return true;
-        }
-        if (o == null || getClass() != o.getClass()) {
-            return false;
-        }
-$comparisons
-
-        return true;
-    }""")
-
-_EQUALS_OTHER_TEMPLATE = Template("""
-        final $cls_name other = ($cls_name) o;
-""")
-
-_EQUALS_FIELD_TEMPLATE = Template("""        if (!java.util.Objects.equals(this.$field_name, other.$field_name)) {
-            return false;
-        }""")
-
-_EQUALS_ARRAY_FIELD_TEMPLATE = Template("""        if (!java.util.Arrays.equals(this.$field_name, other.$field_name)) {
-            return false;
-        }""")
-
-
-def generate_to_string(class_name, fields):
-    to_string = []
-    for f in fields:
-        if is_array(f):
-            to_string.append(_TO_STRING_ARRAY_FIELD_TEMPLATE.substitute(field_name=f.java_name))
-        else:
-            to_string.append(_TO_STRING_FIELD_TEMPLATE.substitute(field_name=f.java_name))
-
-    to_string_fields = " \"}\";"
-    if to_string:
-        to_string_fields = " + \", \" +\n".join(to_string) + " + \"}\";"
-
-    return _TO_STRING_TEMPLATE.substitute(
-        class_name=class_name,
-        to_string_fields=to_string_fields
-    )
-
-_TO_STRING_TEMPLATE = Template("""
-    @Override
-    public java.lang.String toString() {
-        return "$class_name{" +
-$to_string_fields
-    }""")
-
-_TO_STRING_FIELD_TEMPLATE = Template("""                \"$field_name=\" + $field_name""")
-
-_TO_STRING_ARRAY_FIELD_TEMPLATE = Template(
-    """                \"$field_name=\" + java.util.Arrays.toString($field_name)""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_future_facade_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_future_facade_gen.py
deleted file mode 100644
index 3da367a4d5f..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jvpp_future_facade_gen.py
+++ /dev/null
@@ -1,338 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from string import Template
-
-from jvpp_model import is_control_ping, is_control_ping_reply, is_dump, is_request, is_details, is_reply, is_event
-
-
-def generate_future_facade(work_dir, model, logger):
-    logger.debug("Generating JVpp future facade for %s" % model.json_api_files)
-    _generate_future_jvpp(work_dir, model),
-    _generate_future_jvpp_facade(work_dir, model)
-    _generate_future_jvpp_callback(work_dir, model)
-
-
-def _generate_future_jvpp(work_dir, model):
-    with open("%s/FutureJVpp%s.java" % (work_dir, model.plugin_java_name), "w") as f:
-        f.write(_FUTURE_JVPP_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            json_filename=model.json_api_files,
-            plugin_name=model.plugin_java_name,
-            methods=_generate_future_jvpp_methods(model)
-        ))
-
-_FUTURE_JVPP_TEMPLATE = Template('''
-package $plugin_package.future;
-
-/**
- * <p>Async facade extension adding specific methods for each request invocation
- * <br>It was generated by jvpp_future_facade_gen.py based on $json_filename.
- */
-public interface FutureJVpp${plugin_name} extends io.fd.vpp.jvpp.future.FutureJVppInvoker {
-$methods
-
-    @Override
-    public $plugin_package.notification.${plugin_name}EventRegistry getEventRegistry();
-
-}
-''')
-
-
-def _generate_future_jvpp_methods(model):
-    methods = []
-    for msg in model.messages:
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        reply_name = None
-        if is_request(msg):
-            reply_name = msg.reply_java
-        elif is_dump(msg):
-            # use reply dump wrappers
-            reply_name = "%sReplyDump" % msg.reply_java
-        else:
-            continue
-
-        methods.append(_FUTURE_JVPP_METHOD_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            method_name=msg.java_name_lower,
-            reply_name=reply_name,
-            request_name=msg.java_name_upper
-        ))
-    return "".join(methods)
-
-_FUTURE_JVPP_METHOD_TEMPLATE = Template('''
-    java.util.concurrent.CompletionStage<${plugin_package}.dto.${reply_name}> ${method_name}(${plugin_package}.dto.${request_name} request);
-''')
-
-
-def _generate_future_jvpp_facade(work_dir, model):
-    with open("%s/FutureJVpp%sFacade.java" % (work_dir, model.plugin_java_name), "w") as f:
-        f.write(_FUTURE_JVPP_FACADE_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            json_filename=model.json_api_files,
-            plugin_name=model.plugin_java_name,
-            methods=_generate_future_jvpp_facade_methods(model)
-        ))
-
-_FUTURE_JVPP_FACADE_TEMPLATE = Template('''
-package $plugin_package.future;
-
-/**
- * <p>Implementation of FutureJVpp based on AbstractFutureJVppInvoker
- * <br>It was generated by jvpp_future_facade_gen.py based on $json_filename.
- */
-public class FutureJVpp${plugin_name}Facade extends io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker implements FutureJVpp${plugin_name} {
-
-    private final $plugin_package.notification.${plugin_name}EventRegistryImpl eventRegistry = new $plugin_package.notification.${plugin_name}EventRegistryImpl();
-
-    /**
-     * <p>Create FutureJVpp${plugin_name}Facade object for provided JVpp instance.
-     * Constructor internally creates FutureJVppFacadeCallback class for processing callbacks
-     * and then connects to provided JVpp instance
-     *
-     * @param jvpp provided io.fd.vpp.jvpp.JVpp instance
-     *
-     * @throws java.io.IOException in case instance cannot connect to JVPP
-     */
-    public FutureJVpp${plugin_name}Facade(final io.fd.vpp.jvpp.JVppRegistry registry, final io.fd.vpp.jvpp.JVpp jvpp) throws java.io.IOException {
-        super(jvpp, registry, new java.util.HashMap<>());
-        java.util.Objects.requireNonNull(registry, "JVppRegistry should not be null");
-        registry.register(jvpp, new FutureJVpp${plugin_name}FacadeCallback(getRequests(), eventRegistry));
-    }
-
-    @Override
-    public $plugin_package.notification.${plugin_name}EventRegistry getEventRegistry() {
-        return eventRegistry;
-    }
-
-$methods
-}
-''')
-
-
-def _generate_future_jvpp_facade_methods(model):
-    methods = []
-    for msg in model.messages:
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        template = None
-        if is_request(msg):
-            template = _FUTURE_JVPP_FACADE_REQUEST_TEMPLATE
-        elif is_dump(msg):
-            template = _FUTURE_JVPP_FACADE_DUMP_TEMPLATE
-        else:
-            continue
-
-        methods.append(template.substitute(
-            plugin_package=model.plugin_package,
-            method_name=msg.java_name_lower,
-            reply_name=msg.reply_java,
-            request_name=msg.java_name_upper
-        ))
-    return "".join(methods)
-
-_FUTURE_JVPP_FACADE_REQUEST_TEMPLATE = Template('''
-    @Override
-    public java.util.concurrent.CompletionStage<${plugin_package}.dto.${reply_name}> ${method_name}(${plugin_package}.dto.${request_name} request) {
-        return send(request);
-    }
-''')
-
-_FUTURE_JVPP_FACADE_DUMP_TEMPLATE = Template('''
-    @Override
-    public java.util.concurrent.CompletionStage<${plugin_package}.dto.${reply_name}ReplyDump> ${method_name}(${plugin_package}.dto.${request_name} request) {
-        return send(request, new ${plugin_package}.dto.${reply_name}ReplyDump());
-    }
-''')
-
-
-def _generate_future_jvpp_callback(work_dir, model):
-    with open("%s/FutureJVpp%sFacadeCallback.java" % (work_dir, model.plugin_java_name), "w") as f:
-        f.write(_FUTURE_JVPP_CALLBACK_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            json_filename=model.json_api_files,
-            plugin_name=model.plugin_java_name,
-            methods=_generate_future_jvpp_callback_methods(model)
-        ))
-
-_FUTURE_JVPP_CALLBACK_TEMPLATE = Template("""
-package $plugin_package.future;
-
-/**
- * <p>Async facade callback setting values to future objects
- * <br>It was generated by jvpp_future_facade_gen.py based on $json_filename.
- */
-public final class FutureJVpp${plugin_name}FacadeCallback implements $plugin_package.callback.JVpp${plugin_name}GlobalCallback {
-
-    private final java.util.Map<java.lang.Integer, java.util.concurrent.CompletableFuture<? extends io.fd.vpp.jvpp.dto.JVppReply<?>>> requests;
-    private final $plugin_package.notification.Global${plugin_name}EventCallback notificationCallback;
-    private static final java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(FutureJVpp${plugin_name}FacadeCallback.class.getName());
-
-    public FutureJVpp${plugin_name}FacadeCallback(
-        final java.util.Map<java.lang.Integer, java.util.concurrent.CompletableFuture<? extends io.fd.vpp.jvpp.dto.JVppReply<?>>> requestMap,
-        final $plugin_package.notification.Global${plugin_name}EventCallback notificationCallback) {
-        this.requests = requestMap;
-        this.notificationCallback = notificationCallback;
-    }
-
-    @Override
-    @SuppressWarnings("unchecked")
-    public void onError(io.fd.vpp.jvpp.VppCallbackException reply) {
-        final java.util.concurrent.CompletableFuture<io.fd.vpp.jvpp.dto.JVppReply<?>> completableFuture;
-
-        synchronized(requests) {
-            completableFuture = (java.util.concurrent.CompletableFuture<io.fd.vpp.jvpp.dto.JVppReply<?>>) requests.get(reply.getCtxId());
-        }
-
-        if(completableFuture != null) {
-            completableFuture.completeExceptionally(reply);
-
-            synchronized(requests) {
-                requests.remove(reply.getCtxId());
-            }
-        }
-    }
-
-    @Override
-    @SuppressWarnings("unchecked")
-    public void onControlPingReply(final io.fd.vpp.jvpp.dto.ControlPingReply reply) {
-        java.util.concurrent.CompletableFuture<io.fd.vpp.jvpp.dto.JVppReply<?>> completableFuture;
-
-        final int replyId = reply.context;
-        synchronized(requests) {
-            completableFuture = (java.util.concurrent.CompletableFuture<io.fd.vpp.jvpp.dto.JVppReply<?>>) requests.get(replyId);
-
-            if(completableFuture != null) {
-                // Finish dump call
-                if (completableFuture instanceof io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker.CompletableDumpFuture) {
-                    completableFuture.complete(((io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker.CompletableDumpFuture) completableFuture).getReplyDump());
-                    // Remove future mapped to dump call context id
-                    requests.remove(((io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker.CompletableDumpFuture) completableFuture).getContextId());
-                } else {
-                    // reply to regular control ping, complete the future
-                    completableFuture.complete(reply);
-                }
-                requests.remove(replyId);
-            } else {
-                // future not yet created by writer, create new future, complete it and put to map under ping id
-                completableFuture = new java.util.concurrent.CompletableFuture<>();
-                completableFuture.complete(reply);
-                requests.put(replyId, completableFuture);
-            }
-        }
-    }
-
-$methods
-}
-""")
-
-
-def _generate_future_jvpp_callback_methods(model):
-    methods = []
-    for msg in model.messages:
-        if is_control_ping(msg) or is_control_ping_reply(msg):
-            # Skip control_ping managed by jvpp registry.
-            continue
-        if is_dump(msg) or is_request(msg):
-            continue
-
-        # Generate callbacks for all messages except for dumps and requests (handled by vpp, not client).
-        template = None
-        request_dto = None
-        if is_details(msg):
-            template = _FUTURE_JVPP_FACADE_DETAILS_CALLBACK_TEMPLATE
-            request_dto = msg.request_java
-        elif is_reply(msg):
-            template = _FUTURE_JVPP_FACADE_REPLY_CALLBACK_TEMPLATE
-            request_dto = msg.request_java
-        elif is_event(msg):
-            template = _FUTURE_JVPP_FACADE_EVENT_CALLBACK_TEMPLATE
-        else:
-            raise TypeError("Unknown message type %s", msg)
-
-        methods.append(template.substitute(
-            plugin_package=model.plugin_package,
-            callback_dto=msg.java_name_upper,
-            request_dto=request_dto,
-            callback_dto_field=msg.java_name_lower,
-        ))
-    return "".join(methods)
-
-
-_FUTURE_JVPP_FACADE_DETAILS_CALLBACK_TEMPLATE = Template("""
-    @Override
-    @SuppressWarnings("unchecked")
-    public void on$callback_dto(final $plugin_package.dto.$callback_dto reply) {
-        io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker.CompletableDumpFuture<$plugin_package.dto.${callback_dto}ReplyDump> completableFuture;
-        final int replyId = reply.context;
-        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
-            LOG.fine(java.lang.String.format("Received $callback_dto event message: %s", reply));
-        }
-        synchronized(requests) {
-            completableFuture = (io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker.CompletableDumpFuture<$plugin_package.dto.${callback_dto}ReplyDump>) requests.get(replyId);
-
-            if(completableFuture == null) {
-                // reply received before writer created future,
-                // create new future, and put into map to notify sender that reply is already received,
-                // following details replies will add information to this future
-                completableFuture = new io.fd.vpp.jvpp.future.AbstractFutureJVppInvoker.CompletableDumpFuture<>(replyId,
-                    new $plugin_package.dto.${callback_dto}ReplyDump());
-                requests.put(replyId, completableFuture);
-            }
-            completableFuture.getReplyDump().$callback_dto_field.add(reply);
-        }
-    }
-""")
-
-_FUTURE_JVPP_FACADE_REPLY_CALLBACK_TEMPLATE = Template("""
-    @Override
-    @SuppressWarnings("unchecked")
-    public void on$callback_dto(final $plugin_package.dto.$callback_dto reply) {
-        java.util.concurrent.CompletableFuture<io.fd.vpp.jvpp.dto.JVppReply<$plugin_package.dto.$request_dto>> completableFuture;
-        final int replyId = reply.context;
-        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
-            LOG.fine(java.lang.String.format("Received $callback_dto event message: %s", reply));
-        }
-        synchronized(requests) {
-            completableFuture =
-            (java.util.concurrent.CompletableFuture<io.fd.vpp.jvpp.dto.JVppReply<$plugin_package.dto.$request_dto>>) requests.get(replyId);
-
-            if(completableFuture != null) {
-                // received reply on request, complete future created by sender and remove it from map
-                completableFuture.complete(reply);
-                requests.remove(replyId);
-            } else {
-                // reply received before writer created future,
-                // create new future, complete it and put into map to
-                // notify sender that reply is already received
-                completableFuture = new  java.util.concurrent.CompletableFuture<>();
-                completableFuture.complete(reply);
-                requests.put(replyId, completableFuture);
-            }
-        }
-    }
-""")
-
-_FUTURE_JVPP_FACADE_EVENT_CALLBACK_TEMPLATE = Template("""
-    @Override
-    public void on$callback_dto($plugin_package.dto.$callback_dto notification) {
-        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
-            LOG.fine(java.lang.String.format("Received $callback_dto event message: %s", notification));
-        }
-        notificationCallback.on$callback_dto(notification);
-    }
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_ifc_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_ifc_gen.py
deleted file mode 100755
index e2b2922ed20..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jvpp_ifc_gen.py
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jvpp_model import is_request, is_dump, is_event
-
-
-def generate_java_ifc(work_dir, model, logger):
-    logger.debug("Generating JVpp interface for %s" % model.json_api_files)
-    messages = filter(_jvpp_ifc_filter, model.messages)
-    plugin_package = model.plugin_package
-    methods = []
-    for msg in messages:
-        if msg.has_fields:
-            methods.append(_JVPP_IFC_METHOD_TEMPLATE.substitute(
-                name=msg.java_name_lower,
-                plugin_package=plugin_package,
-                type=msg.java_name_upper))
-        else:
-            methods.append(_JVPP_IFC_NO_ARG_METHOD_TEMPLATE.substitute(name=msg.java_name_lower))
-
-    plugin_name = model.plugin_java_name
-    jvpp_interface = _JVPP_IFC_TEMPLATE.substitute(
-        plugin_package=plugin_package,
-        json_filename=model.json_api_files,
-        plugin_name=plugin_name,
-        methods="\n".join(methods)
-    )
-    with open("%s/JVpp%s.java" % (work_dir, plugin_name), "w") as f:
-        f.write(jvpp_interface)
-
-
-def _jvpp_ifc_filter(msg):
-    return is_request(msg) or is_dump(msg) or is_event(msg)
-
-
-_JVPP_IFC_METHOD_TEMPLATE = Template(
-    """    int $name($plugin_package.dto.$type request) throws io.fd.vpp.jvpp.VppInvocationException;""")
-
-_JVPP_IFC_NO_ARG_METHOD_TEMPLATE = Template("""    int $name() throws io.fd.vpp.jvpp.VppInvocationException;""")
-
-_JVPP_IFC_TEMPLATE = Template("""package $plugin_package;
-
-/**
- * <p>Java representation of plugin's api file.
- * <br>It was generated by jvpp_impl_gen.py based on $json_filename.
- * <br>(python representation of api file generated by vppapigen)
- */
-public interface JVpp${plugin_name} extends io.fd.vpp.jvpp.JVpp {
-    /**
-     * Generic dispatch method for sending requests to VPP
-     *
-     * @throws io.fd.vpp.jvpp.VppInvocationException if send request had failed
-     */
-    int send(io.fd.vpp.jvpp.dto.JVppRequest request) throws io.fd.vpp.jvpp.VppInvocationException;
-$methods
-}
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_impl_gen.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_impl_gen.py
deleted file mode 100755
index 376952b620e..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jvpp_impl_gen.py
+++ /dev/null
@@ -1,173 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-from string import Template
-
-from jvpp_model import is_request, is_dump, is_event
-
-
-def generate_java_impl(work_dir, model, logger):
-    logger.debug("Generating JVpp implementation for %s" % model.json_api_files)
-    messages = filter(_jvpp_impl_filter, model.messages)
-    plugin_package = model.plugin_package
-    methods = []
-    for msg in messages:
-        if msg.has_fields:
-            methods.append(_JVPP_IMPL_METHOD_TEMPLATE.substitute(
-                name=msg.java_name_lower,
-                plugin_package=plugin_package,
-                type=msg.java_name_upper))
-        else:
-            methods.append(_JVPP_IMPL_NO_ARG_METHOD_TEMPLATE.substitute(
-                name=msg.java_name_lower,
-                type=msg.java_name_upper))
-
-    plugin_name = model.plugin_java_name
-    jvpp_impl = _JVPP_IMPL_TEMPLATE.substitute(
-        plugin_package=plugin_package,
-        json_filename=model.json_api_files,
-        plugin_name=model.plugin_java_name,
-        plugin_name_underscore=model.plugin_name,
-        methods="\n".join(methods))
-
-    with open("%s/JVpp%sImpl.java" % (work_dir, plugin_name), "w") as f:
-        f.write(jvpp_impl)
-
-
-def _jvpp_impl_filter(msg):
-    return is_request(msg) or is_dump(msg) or is_event(msg)
-
-
-_JVPP_IMPL_TEMPLATE = Template("""package $plugin_package;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.StandardCopyOption;
-import java.nio.file.attribute.PosixFilePermission;
-import java.nio.file.attribute.PosixFilePermissions;
-import java.util.Set;
-import java.util.logging.Logger;
-import java.util.logging.Level;
-import io.fd.vpp.jvpp.callback.JVppCallback;
-import io.fd.vpp.jvpp.VppConnection;
-import io.fd.vpp.jvpp.JVppRegistry;
-
-/**
- * <p>Default implementation of JVpp interface.
- * <br>It was generated by jvpp_impl_gen.py based on $json_filename.
- * <br>(python representation of api file generated by vppapigen)
- */
-public final class JVpp${plugin_name}Impl implements $plugin_package.JVpp${plugin_name} {
-
-    private final static Logger LOG = Logger.getLogger(JVpp${plugin_name}Impl.class.getName());
-    private static final java.lang.String LIBNAME = "libjvpp_${plugin_name_underscore}.so";
-
-    // FIXME using NativeLibraryLoader makes load fail could not find (WantInterfaceEventsReply).
-    static {
-        try {
-            loadLibrary();
-        } catch (Exception e) {
-            LOG.severe("Can't find jvpp jni library: " + LIBNAME);
-            throw new ExceptionInInitializerError(e);
-        }
-    }
-
-    private static void loadStream(final InputStream is) throws IOException {
-        final Set<PosixFilePermission> perms = PosixFilePermissions.fromString("rwxr-x---");
-        final Path p = Files.createTempFile(LIBNAME, null, PosixFilePermissions.asFileAttribute(perms));
-        try {
-            Files.copy(is, p, StandardCopyOption.REPLACE_EXISTING);
-
-            try {
-                Runtime.getRuntime().load(p.toString());
-            } catch (UnsatisfiedLinkError e) {
-                throw new IOException("Failed to load library " + p, e);
-            }
-        } finally {
-            try {
-                Files.deleteIfExists(p);
-            } catch (IOException e) {
-            }
-        }
-    }
-
-    private static void loadLibrary() throws IOException {
-        try (final InputStream is = JVpp${plugin_name}Impl.class.getResourceAsStream('/' + LIBNAME)) {
-            if (is == null) {
-                throw new IOException("Failed to open library resource " + LIBNAME);
-            }
-            loadStream(is);
-        }
-    }
-
-    private VppConnection connection;
-    private JVppRegistry registry;
-
-    private static native void init0(final JVppCallback callback, final long queueAddress, final int clientIndex);
-    @Override
-    public void init(final JVppRegistry registry, final JVppCallback callback, final long queueAddress, final int clientIndex) {
-        this.registry = java.util.Objects.requireNonNull(registry, "registry should not be null");
-        this.connection = java.util.Objects.requireNonNull(registry.getConnection(), "connection should not be null");
-        connection.checkActive();
-        init0(callback, queueAddress, clientIndex);
-    }
-
-    private static native void close0();
-    @Override
-    public void close() {
-        close0();
-    }
-
-    @Override
-    public int send(io.fd.vpp.jvpp.dto.JVppRequest request) throws io.fd.vpp.jvpp.VppInvocationException {
-        return request.send(this);
-    }
-
-    @Override
-    public final int controlPing(final io.fd.vpp.jvpp.dto.ControlPing controlPing) throws io.fd.vpp.jvpp.VppInvocationException {
-        return registry.controlPing(JVpp${plugin_name}Impl.class);
-    }
-$methods
-}
-""")
-
-_JVPP_IMPL_METHOD_TEMPLATE = Template("""
-    private static native int ${name}0($plugin_package.dto.$type request);
-    public final int $name($plugin_package.dto.$type request) throws io.fd.vpp.jvpp.VppInvocationException {
-        java.util.Objects.requireNonNull(request, "Null request object");
-        connection.checkActive();
-        if (LOG.isLoggable(Level.FINE)) {
-            LOG.fine(java.lang.String.format("Sending $type event message: %s", request));
-        }
-        int result=${name}0(request);
-        if (result<0){
-            throw new io.fd.vpp.jvpp.VppInvocationException("${name}", result);
-        }
-        return result;
-    }""")
-
-_JVPP_IMPL_NO_ARG_METHOD_TEMPLATE = Template("""
-    private static native int ${name}0() throws io.fd.vpp.jvpp.VppInvocationException;
-    public final int $name() throws io.fd.vpp.jvpp.VppInvocationException {
-        connection.checkActive();
-        LOG.fine("Sending $type event message");
-        int result=${name}0();
-        if(result<0){
-            throw new io.fd.vpp.jvpp.VppInvocationException("${name}", result);
-        }
-        return result;
-    }""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/jvpp_model.py b/extras/japi/java/jvpp/gen/jvppgen/jvpp_model.py
deleted file mode 100755
index 9a3204e3fc6..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/jvpp_model.py
+++ /dev/null
@@ -1,624 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-import json
-import pprint
-from collections import OrderedDict
-
-import binascii
-
-BASE_PACKAGE = "io.fd.vpp.jvpp"
-
-
-class ParseException(Exception):
-    pass
-
-
-class Type(object):
-    def __init__(self, name, java_name, java_name_fqn, jni_signature, jni_type, jni_accessor,
-                 host_to_net_function, net_to_host_function):
-        """
-        Initializes Type class.
-
-        :param name: name of type as defined in .api file, e.g. u8, u32[] or mac_entry
-        :param java_name: corresponding java name, e.g. byte, int[] or MacEntry
-        :param java_name_fqn: fully qualified java name, e.g. io.fd.vpp.jvpp.core.types.MacEntry
-        :param jni_signature: JNI Type signature, e.g. B, [I or Lio.fd.vpp.jvpp.core.types.MacEntry;
-                              See https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/types.html#type_signatures
-        :param jni_type: JNI reference type, e.g. jbyte jintArray, jobject
-                         See https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/types.html#reference_types
-        :param jni_accessor: Java type do by used in Get<type>Field, Set<type>Field and other functions.
-                             See https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#accessing_fields_of_objects
-        :param host_to_net_function: name of function host to net byte order swap function
-        :param net_to_host_function: name of function net to host byte order swap function
-        """
-        self.name = name
-        self.java_name = java_name
-
-        # Java generation specific properties, TODO(VPP-1186): move to Java specific subclass
-        self.java_name_fqn = java_name_fqn
-
-        # JNI generation specific properties, TODO(VPP-1186): move to JNI specific subclass
-        self.jni_signature = jni_signature
-
-        # Native type, see:
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/types.html#primitive_types
-        # and
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/types.html#reference_types
-        self.jni_type = jni_type
-
-        # Java type do by used in Get<type>Field, Set<type>Field and other functions, see:
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#accessing_fields_of_objects
-        self.jni_accessor = jni_accessor
-
-        self.host_to_net_function = host_to_net_function
-        self.net_to_host_function = net_to_host_function
-        self.is_swap_needed = host_to_net_function and net_to_host_function
-
-
-class SimpleType(Type):
-    def __init__(self, name, java_name, jni_signature, jni_type, jni_accessor,
-                 host_to_net_function=None, net_to_host_function=None):
-        super(SimpleType, self).__init__(
-            name=name,
-            java_name=java_name,
-            java_name_fqn=java_name,
-            jni_signature=jni_signature,
-            jni_type=jni_type,
-            jni_accessor=jni_accessor,
-            host_to_net_function=host_to_net_function,
-            net_to_host_function=net_to_host_function
-        )
-        self.vpp_name = name
-
-    def get_host_to_net_function(self, host_ref_name, net_ref_name):
-        return "%s = %s(%s)" % (net_ref_name, self.host_to_net_function, host_ref_name)
-
-    def __str__(self):
-        return "SimpleType{name:%s, java_name:%s}" % (self.name, self.java_name)
-
-
-# TODO(VPP-1187): add array host to net functions to reduce number of members and simplify JNI generation
-class Array(Type):
-    def __init__(self, base_type, name=None):
-        if name is None:
-            name = base_type.name + _ARRAY_SUFFIX
-        super(Array, self).__init__(
-            name=name,
-            java_name=base_type.java_name + _ARRAY_SUFFIX,
-            java_name_fqn=base_type.java_name_fqn + _ARRAY_SUFFIX,
-            jni_signature="[%s" % base_type.jni_signature,
-            jni_type="%sArray" % base_type.jni_type,
-            jni_accessor="Object",
-            host_to_net_function=base_type.host_to_net_function,
-            net_to_host_function=base_type.net_to_host_function
-        )
-        self.base_type = base_type
-
-    def get_host_to_net_function(self, host_ref_name, net_ref_name):
-        return self.base_type.get_host_to_net_function(host_ref_name, net_ref_name)
-
-    def __str__(self):
-        return "Array{name:%s, java_name:%s}" % (self.name, self.java_name)
-
-
-class Enum(Type):
-    def __init__(self, name, value, constants, definition, plugin_name):
-        _java_name = _underscore_to_camelcase_upper(name)
-
-        super(Enum, self).__init__(
-            name=name,
-            java_name=_java_name,
-            java_name_fqn="io.fd.vpp.jvpp.%s.types.%s" % (plugin_name, _java_name),
-            jni_signature="Lio/fd/vpp/jvpp/%s/types/%s;" % (plugin_name, _java_name),
-            jni_type="jobject",
-            jni_accessor="Object",
-            host_to_net_function="_host_to_net_%s" % name,
-            net_to_host_function="_net_to_host_%s" % name
-        )
-
-        self.value = value
-        self.constants = constants
-        self.doc = _message_to_javadoc(definition)
-        self.java_name_lower = _underscore_to_camelcase_lower(name)
-        self.vpp_name = "%s%s%s" % (_VPP_TYPE_PREFIX, name, _VPP_TYPE_SUFFIX)
-        # Fully qualified class name used by FindClass function, see:
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#FindClass
-        self.jni_name = "io/fd/vpp/jvpp/%s/types/%s" % (plugin_name, _java_name)
-
-    def get_host_to_net_function(self, host_ref_name, net_ref_name):
-        return "_host_to_net_%s(env, %s, &(%s))" % (self.name, host_ref_name, net_ref_name)
-
-
-class Class(Type):
-    def __init__(self, name, crc, fields, definition, plugin_name):
-        _java_name = _underscore_to_camelcase_upper(name)
-
-        super(Class, self).__init__(
-            name=name,
-            java_name=_java_name,
-            java_name_fqn="io.fd.vpp.jvpp.%s.types.%s" % (plugin_name, _java_name),
-            jni_signature="Lio/fd/vpp/jvpp/%s/types/%s;" % (plugin_name, _java_name),
-            jni_type="jobject",
-            jni_accessor="Object",
-            host_to_net_function="_host_to_net_%s" % name,
-            net_to_host_function="_net_to_host_%s" % name
-        )
-
-        self.crc = crc
-        self.fields = fields
-        self.doc = _message_to_javadoc(definition)
-        self.java_name_lower = _underscore_to_camelcase_lower(name)
-        self.vpp_name = "%s%s%s" % (_VPP_TYPE_PREFIX, name, _VPP_TYPE_SUFFIX)
-        # Fully qualified class name used by FindClass function, see:
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#FindClass
-        self.jni_name = "io/fd/vpp/jvpp/%s/types/%s" % (plugin_name, _java_name)
-
-    def get_host_to_net_function(self, host_ref_name, net_ref_name):
-        return "_host_to_net_%s(env, %s, &(%s))" % (self.name, host_ref_name, net_ref_name)
-
-
-class Union(Type):
-    def __init__(self, name, crc, fields, definition, plugin_name):
-        _java_name = _underscore_to_camelcase_upper(name)
-
-        super(Union, self).__init__(
-            name=name,
-            java_name=_java_name,
-            java_name_fqn="io.fd.vpp.jvpp.%s.types.%s" % (plugin_name, _java_name),
-            jni_signature="Lio/fd/vpp/jvpp/%s/types/%s;" % (plugin_name, _java_name),
-            jni_type="jobject",
-            jni_accessor="Object",
-            host_to_net_function="_host_to_net_%s" % name,
-            net_to_host_function="_net_to_host_%s" % name
-        )
-
-        self.crc = crc
-        self.fields = fields
-        self.doc = _message_to_javadoc(definition)
-        self.java_name_lower = _underscore_to_camelcase_lower(name)
-        self.vpp_name = "%s%s%s" % (_VPP_TYPE_PREFIX, name, _VPP_TYPE_SUFFIX)
-        # Fully qualified class name used by FindClass function, see:
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#FindClass
-        self.jni_name = "io/fd/vpp/jvpp/%s/types/%s" % (plugin_name, _java_name)
-
-    def get_host_to_net_function(self, host_ref_name, net_ref_name):
-        return "_host_to_net_%s(env, %s, &(%s))" % (self.name, host_ref_name, net_ref_name)
-
-
-class Field(object):
-    def __init__(self, name, field_type, array_len=None, array_len_field=None):
-        self.name = name
-        self.java_name = _underscore_to_camelcase_lower(name)
-        self.java_name_upper = _underscore_to_camelcase_upper(name)
-        self.type = field_type
-        self.array_len = array_len
-        self.array_len_field = array_len_field
-
-    def __str__(self):
-        return "Field{name:%s, java_name:%s, type:%s}" % (self.name, self.java_name, self.type)
-
-
-class Message(object):
-    def __init__(self, name, crc, fields, definition):
-        self.name = name
-        self.java_name_upper = _underscore_to_camelcase_upper(name)
-        self.java_name_lower = _underscore_to_camelcase_lower(name)
-        self.crc = crc[2:]
-        self.fields = fields
-        self.has_fields = fields != []
-        self.doc = _message_to_javadoc(definition)
-
-    def __str__(self):
-        return "Message{name:%s, java_name:%s, crc:%s, fields:%s}" % (
-            self.name, self.java_name_upper, self.crc, self.fields)
-
-
-class Event(Message):
-    def __init__(self, name, crc, fields, definition):
-        super(Event, self).__init__(name, crc, fields, definition)
-
-
-class Request(Message):
-    def __init__(self, name, reply, crc, fields, definition):
-        super(Request, self).__init__(name, crc, fields, definition)
-        self.reply = reply
-        self.reply_java = _underscore_to_camelcase_upper(reply)
-
-    def __str__(self):
-        return "Request{name:%s, reply:%s, crc:%s, fields:%s}" % (self.name, self.reply, self.crc, self.fields)
-
-
-class Reply(Message):
-    def __init__(self, name, request, crc, fields, definition):
-        super(Reply, self).__init__(name, crc, fields, definition)
-        self.request = request
-        self.request_java = _underscore_to_camelcase_upper(request)
-
-    def __str__(self):
-        return "Reply{name:%s, request:%s, crc:%s, fields:%s}" % (self.name, self.request, self.crc, self.fields)
-
-
-class Dump(Message):
-    def __init__(self, name, details, crc, fields, definition):
-        super(Dump, self).__init__(name, crc, fields, definition)
-        self.details = details
-        self.reply_java = _underscore_to_camelcase_upper(details)
-
-    def __str__(self):
-        return "Dump{name:%s, details:%s, crc:%s, fields:%s}" % (self.name, self.details, self.crc, self.fields)
-
-
-class Details(Message):
-    def __init__(self, name, dump, crc, fields, definition):
-        super(Details, self).__init__(name, crc, fields, definition)
-        self.dump = dump
-        self.request_java = _underscore_to_camelcase_upper(dump)
-
-    def __str__(self):
-        return "Details{name:%s, dump:%s, crc:%s, fields:%s}" % (self.name, self.dump, self.crc, self.fields)
-
-
-def is_retval(field):
-    return field.name == u'retval'
-
-
-def is_array(field):
-    return field.array_len is not None
-
-
-def is_request(msg):
-    return hasattr(msg, 'reply')
-
-
-def is_reply(msg):
-    return hasattr(msg, 'request')
-
-
-def is_dump(msg):
-    return hasattr(msg, 'details')
-
-
-def is_details(msg):
-    return hasattr(msg, 'dump')
-
-
-def is_event(msg):
-    return isinstance(msg, Event)
-
-
-def is_control_ping(msg):
-    return msg.name == u'control_ping'
-
-
-def is_control_ping_reply(msg):
-    return msg.name == u'control_ping_reply'
-
-
-def crc(block):
-    s = str(block).encode()
-    return binascii.crc32(s) & 0xffffffff
-
-
-class JVppModel(object):
-    def __init__(self, logger, json_api_files, plugin_name):
-        self.logger = logger
-        # TODO(VPP-1188): provide json_file_by_definition map to improve javadoc
-        self.json_api_files = json_api_files
-        self.plugin_package = BASE_PACKAGE + "." + plugin_name
-        self.plugin_name = plugin_name
-        self.plugin_java_name = _underscore_to_camelcase_upper(plugin_name)
-        self._load_json_files(json_api_files)
-        self._parse_services()
-        self._parse_messages()
-        self._validate_messages()
-
-    def _load_json_files(self, json_api_files):
-        types = {}
-        self._messages = []
-        self._services = {}
-        self._aliases = {}
-        for file_name in json_api_files:
-            with open(file_name) as f:
-                j = json.load(f)
-                types.update({d[0]: {'type': 'enum', 'data': d} for d in j['enums']})
-                types.update({d[0]: {'type': 'type', 'data': d} for d in j['types']})
-                types.update({d[0]: {'type': 'union', 'data': d} for d in j['unions']})
-                self._messages.extend(j['messages'])
-                self._services.update(j['services'])
-                self._aliases.update(j['aliases'])
-
-        self._parse_types(types)
-
-    def _parse_aliases(self, types):
-
-        # model aliases
-        for alias_name in self._aliases:
-            alias = self._aliases[alias_name]
-            alias_type = {"type": "type"}
-            java_name_lower = _underscore_to_camelcase_lower(alias_name)
-            vpp_type = alias["type"]
-            crc_value = '0x%08x' % crc(alias_name)
-            if "length" in alias:
-                length = alias["length"]
-                alias_type["data"] = [
-                    alias_name,
-                    [
-                        vpp_type,
-                        java_name_lower,
-                        length
-                    ],
-                    {
-                        "crc": crc_value
-                    }
-                ]
-            else:
-                alias_type["data"] = [
-                    alias_name,
-                    [
-                        vpp_type,
-                        java_name_lower
-                    ],
-                    {
-                        "crc": crc_value
-                    }
-                ]
-
-            types[alias_name] = alias_type
-
-    def _parse_types(self, types):
-        self._parse_simple_types()
-        self._parse_aliases(types)
-        i = 0
-        while True:
-            unresolved = {}
-            for name, value in types.items():
-                if name in self._types_by_name:
-                    continue
-
-                type = value['type']
-                data = value['data'][1:]
-                try:
-                    if type == 'enum':
-                        type = self._parse_enum(name, data)
-                    elif type == 'union':
-                        type = self._parse_union(name, data)
-                    elif type == 'type':
-                        type = self._parse_type(name, data)
-                    else:
-                        self.logger.warning("Unsupported type %s. Ignoring...", type)
-                        continue
-
-                    self._types_by_name[name] = type
-                    self._types_by_name[name + _ARRAY_SUFFIX] = Array(type)
-                except ParseException as e:
-                    self.logger.debug("Failed to parse %s type in iteration %s: %s.", name, i, e)
-                    unresolved[name] = value
-            if len(unresolved) == 0:
-                break
-            if i > 3:
-                raise ParseException('Unresolved type definitions {}'
-                                     .format(unresolved))
-            types = unresolved
-            i += 1
-
-        self.types = self._types_by_name.values()
-
-    def _parse_simple_types(self):
-        # Mapping according to:
-        # http://docs.oracle.com/javase/7/do+'[]'cs/technotes/guides/jni/spec/types.html
-        # and
-        # https://docs.oracle.com/javase/8/docs/technotes/guides/jni/spec/functions.html#Get_type_Field_routines
-        #
-        # Unsigned types are converted to signed java types that have the same size.
-        # It is the API user responsibility to interpret them correctly.
-
-        self._types_by_name = OrderedDict({
-            'u8': SimpleType('u8', 'byte', 'B', 'jbyte', 'Byte'),
-            'i8': SimpleType('i8', 'byte', 'B', 'jbyte', 'Byte'),
-            'u16': SimpleType('u16', 'short', 'S', 'jshort', 'Short',
-                              host_to_net_function='clib_host_to_net_u16',
-                              net_to_host_function='clib_net_to_host_u16'),
-            'i16': SimpleType('i16', 'short', 'S', 'jshort', 'Short',
-                              host_to_net_function='clib_host_to_net_i16',
-                              net_to_host_function='clib_net_to_host_i16'),
-            'u32': SimpleType('u32', 'int', 'I', 'jint', 'Int',
-                              host_to_net_function='clib_host_to_net_u32',
-                              net_to_host_function='clib_net_to_host_u32'),
-            'i32': SimpleType('i32', 'int', 'I', 'jint', 'Int',
-                              host_to_net_function='clib_host_to_net_i32',
-                              net_to_host_function='clib_net_to_host_i32'),
-            'u64': SimpleType('u64', 'long', 'J', 'jlong', 'Long',
-                              host_to_net_function='clib_host_to_net_u64',
-                              net_to_host_function='clib_net_to_host_u64'),
-            'i64': SimpleType('i64', 'long', 'J', 'jlong', 'Long',
-                              host_to_net_function='clib_host_to_net_i64',
-                              net_to_host_function='clib_net_to_host_i64'),
-            'f64': SimpleType('f64', 'double', 'D', 'jdouble', 'Double'),
-            'string': SimpleType('string', 'String', 'Ljava/lang/String;', 'jstring', 'Object',
-                                 host_to_net_function='_host_to_net_string',
-                                 net_to_host_function='_net_to_host_string')
-        })
-
-        for n, t in self._types_by_name.items():
-            self._types_by_name[n + _ARRAY_SUFFIX] = Array(t)
-
-    def _parse_enum(self, name, definition):
-        self.logger.debug("Parsing enum %s: %s", name, definition)
-        constants = []
-        type_name = None
-        for item in definition:
-            if type(item) is dict and 'enumtype' in item:
-                type_name = item['enumtype']
-                continue
-            constants.append({'name': item[0], 'value': item[1]})
-        if not type_name:
-            raise ParseException("'enumtype' was not defined for %s" % definition)
-        return Enum(name, Field('value', self._types_by_name[type_name]), constants, definition, self.plugin_name)
-
-    def _parse_union(self, name, definition):
-        self.logger.debug("Parsing union %s: %s", name, definition)
-        crc, fields = self._parse_fields(definition)
-        return Union(name, crc, fields, definition, self.plugin_name)
-
-    def _parse_type(self, name, definition):
-        self.logger.debug("Parsing type %s: %s", name, definition)
-        crc, fields = self._parse_fields(definition)
-        return Class(name, crc, fields, definition, self.plugin_name)
-
-    def _parse_services(self):
-        self._dumps_by_details = {}
-        self._requests_by_reply = {}
-        for name, service in self._services.iteritems():
-            if _is_stream(service):
-                self._dumps_by_details[service['reply']] = name
-            else:
-                self._requests_by_reply[service['reply']] = name
-
-    def _parse_messages(self):
-        # Preserve ordering from JSON file to make debugging easier.
-        self._messages_by_name = OrderedDict()
-        for msg in self._messages:
-            try:
-                name = msg[0]
-                definition = msg[1:]
-                self._messages_by_name[name] = self._parse_message(name, definition)
-            except ParseException as e:
-                self.logger.warning("Failed to parse message %s: %s. Skipping message.", name, e)
-
-    def _parse_message(self, name, definition):
-        self.logger.debug("Parsing message %s: %s", name, definition)
-        crc, fields = self._parse_fields(definition)
-        if name in self._services:
-            service = self._services[name]
-            reply = service['reply']
-            if _is_stream(service):
-                return Dump(name, reply, crc, filter(_is_request_field, fields), definition)
-            if reply:
-                return Request(name, reply, crc, filter(_is_request_field, fields), definition)
-            else:
-                return Event(name, crc, filter(_is_request_field, fields), definition)
-        elif name in self._requests_by_reply:
-            return Reply(name, self._requests_by_reply[name], crc, filter(_is_reply_field, fields), definition)
-        elif name in self._dumps_by_details:
-            return Details(name, self._dumps_by_details[name], crc, filter(_is_reply_field, fields), definition)
-        else:
-            # TODO: some messages like combined_counters are not visible in the services.
-            # Throw exception instead (requires fixing vppagigen).
-            return Event(name, crc, filter(_is_request_field, fields), definition)
-
-    def _parse_fields(self, definition):
-        crc = None
-        fields = []
-        for item in definition:
-            if type(item) == dict and 'crc' in item:
-                crc = item['crc']
-            else:
-                fields.append(self._parse_field(item, fields))
-        if not crc:
-            raise ParseException("CRC was not defined for %s" % definition)
-        return crc, fields
-
-    def _parse_field(self, field, fields):
-        type_name = _extract_type_name(field[0])
-
-        if type_name in self._types_by_name:
-            if len(field) > 2:
-                # Array field
-                array_len_field = None
-                if len(field) == 4:
-                    for f in fields:
-                        if f.name == field[3]:
-                            array_len_field = f
-                    if not array_len_field:
-                        raise ParseException("Could not find field %s declared as length of array %s",
-                                             field[3], field[1])
-                return Field(field[1], self._types_by_name[type_name + _ARRAY_SUFFIX], field[2], array_len_field)
-            else:
-                return Field(field[1], self._types_by_name[type_name])
-        else:
-            raise ParseException("Unknown field type %s" % field)
-
-    def _validate_messages(self):
-        """
-        In case if message A is known to be reply for message B, and message B was not correctly parsed,
-        remove message A from the set of all messages.
-        """
-        to_be_removed = []
-        messages = self._messages_by_name
-        for name, msg in messages.iteritems():
-            if (is_request(msg) and msg.reply not in messages) \
-                    or (is_reply(msg) and msg.request not in messages) \
-                    or (is_dump(msg) and msg.details not in messages) \
-                    or (is_details(msg) and msg.dump not in messages):
-                to_be_removed.append(name)
-
-        for name in to_be_removed:
-            del messages[name]
-
-        self.messages = self._messages_by_name.values()
-
-
-_ARRAY_SUFFIX = '[]'
-
-
-def _underscore_to_camelcase_upper(name):
-    return name.title().replace("_", "")
-
-
-def _underscore_to_camelcase_lower(name):
-    name = name.title().replace("_", "")
-    return name[0].lower() + name[1:]
-
-
-def _message_to_javadoc(message_definition):
-    """ Converts JSON message definition to javadoc """
-    formatted_message = pprint.pformat(message_definition, indent=4, width=120, depth=None)
-    return " * " + formatted_message.replace("\n", "\n * ")
-
-
-def _is_stream(service):
-    """
-    Checks if service represents stream, e.g.:
-    "ip_address_dump": {
-        "reply": "ip_address_details",
-        "stream": true
-    }
-    :param service: JSON definition of service
-    :return: value assigned to "stream" or None
-    """
-    return "stream" in service
-
-
-def _extract_type_name(name):
-    if name.startswith(_VPP_TYPE_PREFIX) and name.endswith(_VPP_TYPE_SUFFIX):
-        return name[len(_VPP_TYPE_PREFIX): - len(_VPP_TYPE_SUFFIX)]
-    return name
-
-_VPP_TYPE_PREFIX = "vl_api_"
-
-_VPP_TYPE_SUFFIX = "_t"
-
-
-def _is_request_field(field):
-    # Skip fields that are hidden to the jvpp user (handled by JNI layer)
-    return field.name not in {'_vl_msg_id', 'client_index', 'context'}
-
-
-def _is_reply_field(field):
-    # Skip fields that are hidden to the jvpp user:
-    # _vl_msg_id is handled at JNI layer,
-    # Unlike in the request case, context is visible to allow matching replies with requests at Java layer.
-    return field.name not in {'_vl_msg_id'}
diff --git a/extras/japi/java/jvpp/gen/jvppgen/notification_gen.py b/extras/japi/java/jvpp/gen/jvppgen/notification_gen.py
deleted file mode 100644
index fa86fe4bbf2..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/notification_gen.py
+++ /dev/null
@@ -1,226 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from string import Template
-
-from jvpp_model import is_control_ping, is_control_ping_reply, is_dump, is_request
-
-
-def generate_notifications(work_dir, model, logger):
-    """ Generates notification registry interface and implementation """
-    logger.debug("Generating Notification interfaces and implementation for %s" % model.json_api_files)
-    messages = filter(_notification_filter, model.messages)
-    _generate_global_event_callback(work_dir, model, messages)
-    _generate_event_registry(work_dir, model, messages)
-    _generate_event_registry_impl(work_dir, model, messages)
-    _generate_event_registry_provider(work_dir, model)
-
-
-def _notification_filter(msg):
-    # Generate callbacks for all messages except for dumps and requests (handled by vpp, not client).
-    # Also skip control ping managed by jvpp registry.
-    return (not is_control_ping(msg)) and \
-           (not is_control_ping_reply(msg)) and \
-           (not is_dump(msg)) and \
-           (not is_request(msg))
-
-
-def _generate_event_registry(work_dir, model, messages):
-    plugin_name = model.plugin_java_name
-    plugin_package = model.plugin_package
-
-    register_callback_methods = []
-    for msg in messages:
-        name = _callback_name(msg)
-        fqn_name = _fqn_callback_name(plugin_package, name)
-        # TODO create NotificationListenerRegistration and return that instead of AutoCloseable to better indicate
-        # that the registration should be closed
-        register_callback_methods.append("    java.lang.AutoCloseable register%s(%s callback);" % (name, fqn_name))
-
-    with open("%s/%sEventRegistry.java" % (work_dir, plugin_name), "w") as f:
-        f.write(_EVENT_REGISTRY_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            plugin_name=plugin_name,
-            json_filename=model.json_api_files,
-            register_callback_methods="\n".join(register_callback_methods)
-        ))
-
-_EVENT_REGISTRY_TEMPLATE = Template("""
-package $plugin_package.notification;
-
-/**
- * <p>Registry for notification callbacks defined in ${plugin_name}.
- * <br>It was generated by notification_gen.py based on $json_filename.
- */
-public interface ${plugin_name}EventRegistry extends io.fd.vpp.jvpp.notification.EventRegistry {
-
-$register_callback_methods
-
-    @Override
-    void close();
-}
-""")
-
-
-def _generate_event_registry_impl(work_dir, model, messages):
-    plugin_name = model.plugin_java_name
-    plugin_package = model.plugin_package
-
-    register_callback_methods = []
-    handler_methods = []
-    for msg in messages:
-        notification = msg.java_name_upper
-        callback = "%sCallback" % notification
-        register_callback_methods.append(_REGISTER_CALLBACK_IMPL_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            notification=notification,
-            callback=callback
-        ))
-        handler_methods.append(_HANDLER_IMPL_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            notification=notification,
-            callback=callback
-        ))
-
-    with open("%s/%sEventRegistryImpl.java" % (work_dir, plugin_name), "w") as f:
-        f.write(_EVENT_REGISTRY_IMPL_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            plugin_name=plugin_name,
-            json_filename=model.json_api_files,
-            register_callback_methods="".join(register_callback_methods),
-            handler_methods="".join(handler_methods)
-        ))
-
-_REGISTER_CALLBACK_IMPL_TEMPLATE = Template("""
-    public java.lang.AutoCloseable register$callback(final $plugin_package.callback.$callback callback){
-        if(null != registeredCallbacks.putIfAbsent($plugin_package.dto.$notification.class, callback)){
-            throw new IllegalArgumentException("Callback for " + $plugin_package.dto.$notification.class +
-                "notification already registered");
-        }
-        return () -> registeredCallbacks.remove($plugin_package.dto.$notification.class);
-    }
-""")
-
-_HANDLER_IMPL_TEMPLATE = Template("""
-    @Override
-    public void on$notification(
-        final $plugin_package.dto.$notification notification) {
-        if (LOG.isLoggable(java.util.logging.Level.FINE)) {
-            LOG.fine(java.lang.String.format("Received $notification event message: %s", notification));
-        }
-        final io.fd.vpp.jvpp.callback.JVppCallback jVppCallback = registeredCallbacks.get($plugin_package.dto.$notification.class);
-        if (null != jVppCallback) {
-            (($plugin_package.callback.$callback) registeredCallbacks
-                .get($plugin_package.dto.$notification.class))
-                .on$notification(notification);
-        }
-    }
-""")
-
-_EVENT_REGISTRY_IMPL_TEMPLATE = Template("""
-package $plugin_package.notification;
-
-/**
- * <p>Notification registry delegating notification processing to registered callbacks.
- * <br>It was generated by notification_gen.py based on $json_filename.
- */
-public final class ${plugin_name}EventRegistryImpl implements ${plugin_name}EventRegistry, Global${plugin_name}EventCallback {
-
-    // TODO add a special NotificationCallback interface and only allow those to be registered
-    private final java.util.concurrent.ConcurrentMap<Class<?>, io.fd.vpp.jvpp.callback.JVppCallback> registeredCallbacks =
-        new java.util.concurrent.ConcurrentHashMap<>();
-    private static java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(${plugin_name}EventRegistryImpl.class.getName());
-
-    $register_callback_methods
-    $handler_methods
-
-    @Override
-    public void close() {
-        registeredCallbacks.clear();
-    }
-
-    @Override
-    public void onError(io.fd.vpp.jvpp.VppCallbackException ex) {
-        java.util.logging.Logger LOG = java.util.logging.Logger.getLogger(${plugin_name}EventRegistryImpl.class.getName());
-        LOG.log(java.util.logging.Level.WARNING, java.lang.String.format("Received onError exception: call=%s, context=%d, retval=%d%n", ex.getMethodName(),
-            ex.getCtxId(), ex.getErrorCode()), ex);
-    }
-}
-""")
-
-
-def _generate_global_event_callback(work_dir, model, messages):
-    plugin_name = model.plugin_java_name
-    plugin_package = model.plugin_package
-
-    callbacks = ""
-    callback_list = []
-    for msg in messages:
-        fqn_name = _fqn_callback_name(plugin_package, _callback_name(msg))
-        callback_list.append(fqn_name)
-
-    if callback_list:
-        callbacks = " extends %s" % ", ".join(callback_list)
-
-    with open("%s/Global%sEventCallback.java" % (work_dir, plugin_name), "w") as f:
-        f.write(_GLOBAL_EVENT_CALLBACK_TEMPLATE.substitute(
-            plugin_package=plugin_package,
-            plugin_name=plugin_name,
-            json_filename=model.json_api_files,
-            callbacks=callbacks
-        ))
-
-_GLOBAL_EVENT_CALLBACK_TEMPLATE = Template("""
-package $plugin_package.notification;
-
-/**
- * <p>Aggregated callback interface for notifications only.
- * <br>It was generated by notification_gen.py based on $json_filename.
- */
-public interface Global${plugin_name}EventCallback$callbacks {
-
-}
-""")
-
-
-def _generate_event_registry_provider(work_dir, model):
-    plugin_name = model.plugin_java_name
-    with open("%s/%sEventRegistryProvider.java" % (work_dir, plugin_name), "w") as f:
-        f.write(_EVENT_REGISTRY_PROVIDER_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            plugin_name=plugin_name,
-            json_filename=model.json_api_files
-        ))
-
-_EVENT_REGISTRY_PROVIDER_TEMPLATE = Template("""
-package $plugin_package.notification;
-
- /**
- * Provides ${plugin_name}EventRegistry.
- * <br>The file was generated by notification_gen.py based on $json_filename.
- */
-public interface ${plugin_name}EventRegistryProvider extends io.fd.vpp.jvpp.notification.EventRegistryProvider {
-
-    @Override
-    public ${plugin_name}EventRegistry getEventRegistry();
-}
-""")
-
-
-def _callback_name(msg):
-    return "%sCallback" % msg.java_name_upper
-
-
-def _fqn_callback_name(plugin_package, callback_name):
-    return "%s.callback.%s" % (plugin_package, callback_name)
diff --git a/extras/japi/java/jvpp/gen/jvppgen/types_gen.py b/extras/japi/java/jvpp/gen/jvppgen/types_gen.py
deleted file mode 100755
index 3767b530347..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/types_gen.py
+++ /dev/null
@@ -1,60 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2016,2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-from string import Template
-
-from jvpp_common_gen import generate_hash_code, generate_equals, generate_to_string, generate_fields
-from jvpp_model import Class
-
-
-def generate_types(work_dir, model, logger):
-    logger.debug("Generating custom types for %s " % model.json_api_files)
-
-    for t in model.types:
-        if not isinstance(t, Class):
-            continue
-        logger.debug("Generating DTO for type %s", t)
-        type_class_name = t.java_name
-        fields = t.fields
-        type_class = _TYPE_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            c_type_name=t.name,
-            json_filename=model.json_api_files,
-            json_definition=t.doc,
-            java_type_name=type_class_name,
-            fields=generate_fields(fields),
-            hash_code=generate_hash_code(fields),
-            equals=generate_equals(type_class_name, fields),
-            to_string=generate_to_string(type_class_name, fields)
-        )
-        with open("%s/%s.java" % (work_dir, type_class_name), "w") as f:
-            f.write(type_class)
-
-_TYPE_TEMPLATE = Template("""
-package $plugin_package.types;
-
-/**
- * <p>This class represents $c_type_name type definition.
- * <br>It was generated by jvpp_types_gen.py based on $json_filename:
- * <pre>
-$json_definition
- * </pre>
- */
-public final class $java_type_name {
-$fields
-$hash_code
-$equals
-$to_string
-}
-""")
diff --git a/extras/japi/java/jvpp/gen/jvppgen/unions_gen.py b/extras/japi/java/jvpp/gen/jvppgen/unions_gen.py
deleted file mode 100755
index f67704f2426..00000000000
--- a/extras/japi/java/jvpp/gen/jvppgen/unions_gen.py
+++ /dev/null
@@ -1,98 +0,0 @@
-#!/usr/bin/env python2
-#
-# Copyright (c) 2018 Cisco and/or its affiliates.
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at:
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-from string import Template
-
-from jvpp_common_gen import generate_hash_code, generate_equals, generate_to_string, generate_fields
-from jvpp_model import Union
-
-
-def generate_unions(work_dir, model, logger):
-    logger.debug("Generating unions for %s " % model.json_api_files)
-
-    for t in model.types:
-        if not isinstance(t, Union):
-            continue
-        logger.debug("Generating DTO for union %s", t)
-        java_union_name = t.java_name
-        fields = t.fields
-        type_class = _UNION_TEMPLATE.substitute(
-            plugin_package=model.plugin_package,
-            c_type_name=t.name,
-            json_filename=model.json_api_files,
-            json_definition=t.doc,
-            java_union_name=java_union_name,
-            fields=generate_fields(fields, access_modifier="private"),
-            constructors=_generate_constructors(java_union_name, fields),
-            getters=_generate_getters(fields),
-            hash_code=generate_hash_code(fields),
-            equals=generate_equals(java_union_name, fields),
-            to_string=generate_to_string(java_union_name, fields)
-        )
-        with open("%s/%s.java" % (work_dir, java_union_name), "w") as f:
-            f.write(type_class)
-
-_UNION_TEMPLATE = Template("""
-package ${plugin_package}.types;
-
-/**
- * <p>This class represents ${c_type_name} union definition.
- * <br>It was generated by unions_gen.py based on ${json_filename}:
- * <pre>
-${json_definition}
- * </pre>
- */
-public class ${java_union_name} {
-    private final int _activeMember;
-${fields}
-    private ${java_union_name}() {
-        // Constructor for JNI usage. All members can be read.
-        _activeMember = -1;
-    }
-${constructors}
-${getters}
-${hash_code}
-${equals}
-${to_string}
-}
-""")
-
-
-def _generate_constructors(union_name, fields):
-    return "".join(
-        _CONSTRUCTOR_TEMPLATE
-        .substitute(union_name=union_name,
-                    field_type=f.type.java_name_fqn,
-                    field_name=f.java_name,
-                    field_index=i) for i, f in enumerate(fields))
-
-_CONSTRUCTOR_TEMPLATE = Template("""
-    public ${union_name}(${field_type} ${field_name}) {
-        this.${field_name} = java.util.Objects.requireNonNull(${field_name}, "${field_name} should not be null");
-        _activeMember = $field_index;
-    }""")
-
-
-def _generate_getters(fields):
-    return "".join(_GETTER_TEMPLATE.substitute(
-        type=f.type.java_name_fqn,
-        getter_name=f.java_name_upper,
-        field_name=f.java_name
-    ) for f in fields)
-
-_GETTER_TEMPLATE = Template("""
-    public ${type} get${getter_name}() {
-        return ${field_name};
-    }""")