Add google's error prone static analysis to build

Can be also integrated with IDEs:
http://errorprone.info/docs/installation

Change-Id: I5f695995078139a077bd9d62c68792207c904e11
Signed-off-by: Maros Marsalek <mmarsale@cisco.com>

4 files changed, 46 insertions, 10 deletions

diff --git a/common/api-parent/pom.xml b/common/api-parent/pom.xml
index 81c818f8a..ec7f78dcb 100644
--- a/common/api-parent/pom.xml
+++ b/common/api-parent/pom.xml
@@ -125,14 +125,32 @@
           </execution>
         </executions>
       </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-compiler-plugin</artifactId>
-        <configuration>
-          <source>1.8</source>
-          <target>1.8</target>
-        </configuration>
-      </plugin>
+        <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <configuration>
+            <!-- Use google's error-prone static analysis-->
+            <compilerId>javac-with-errorprone</compilerId>
+            <forceJavacCompilerUse>true</forceJavacCompilerUse>
+            <showWarnings>true</showWarnings>
+            <source>1.8</source>
+            <target>1.8</target>
+          </configuration>
+          <dependencies>
+            <dependency>
+              <groupId>org.codehaus.plexus</groupId>
+              <artifactId>plexus-compiler-javac-errorprone</artifactId>
+              <version>2.5</version>
+            </dependency>
+            <!-- override plexus-compiler-javac-errorprone's dependency on
+                 Error Prone with the latest version -->
+            <dependency>
+              <groupId>com.google.errorprone</groupId>
+              <artifactId>error_prone_core</artifactId>
+              <version>2.0.9</version>
+            </dependency>
+          </dependencies>
+        </plugin>
     </plugins>
   </build>
 
diff --git a/common/impl-parent/pom.xml b/common/impl-parent/pom.xml
index c4ce7b168..f09996564 100644
--- a/common/impl-parent/pom.xml
+++ b/common/impl-parent/pom.xml
@@ -132,9 +132,27 @@
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-compiler-plugin</artifactId>
         <configuration>
+          <!-- Use google's error-prone static analysis-->
+          <compilerId>javac-with-errorprone</compilerId>
+          <forceJavacCompilerUse>true</forceJavacCompilerUse>
+          <showWarnings>true</showWarnings>
           <source>1.8</source>
           <target>1.8</target>
         </configuration>
+        <dependencies>
+          <dependency>
+            <groupId>org.codehaus.plexus</groupId>
+            <artifactId>plexus-compiler-javac-errorprone</artifactId>
+            <version>2.5</version>
+          </dependency>
+          <!-- override plexus-compiler-javac-errorprone's dependency on
+               Error Prone with the latest version -->
+          <dependency>
+            <groupId>com.google.errorprone</groupId>
+            <artifactId>error_prone_core</artifactId>
+            <version>2.0.9</version>
+          </dependency>
+        </dependencies>
       </plugin>
     </plugins>
   </build>
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/Ipv4NeighbourCustomizer.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/Ipv4NeighbourCustomizer.java
index e01d4c1bf..99267ddff 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/Ipv4NeighbourCustomizer.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfaces/ip/Ipv4NeighbourCustomizer.java
@@ -88,7 +88,7 @@ public class Ipv4NeighbourCustomizer extends FutureJVppCustomizer
     public void updateCurrentAttributes(@Nonnull InstanceIdentifier<Neighbor> id, @Nonnull Neighbor dataBefore,
                                         @Nonnull Neighbor dataAfter,
                                         @Nonnull WriteContext writeContext) throws WriteFailedException {
-        new UnsupportedOperationException("Operation not supported");
+        throw new UnsupportedOperationException("Operation not supported");
     }
 
     @Override
diff --git a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java
index 4d1f5dd5d..7b4b2d01e 100644
--- a/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java
+++ b/v3po/v3po2vpp/src/main/java/io/fd/honeycomb/v3po/translate/v3po/interfacesstate/InterfaceUtils.java
@@ -121,7 +121,7 @@ public final class InterfaceUtils {
         Objects.requireNonNull(vppPhysAddress, "Empty physical address bytes");
         final int endIndex = startIndex + PHYSICAL_ADDRESS_LENGTH;
         checkArgument(endIndex <= vppPhysAddress.length,
-            "Invalid physical address size (%s) for given startIndex (%d), expected >= %d", vppPhysAddress.length,
+            "Invalid physical address size (%s) for given startIndex (%s), expected >= %s", vppPhysAddress.length,
             startIndex, endIndex);
         StringBuilder physAddr = new StringBuilder();