build section of my pom.xml

pom.xml

  <build>
  	<plugins>
      <!-- Add generated source directory to the build -->
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>build-helper-maven-plugin</artifactId>
        <version>1.7</version>
        <executions>
          <execution>
            <id>add-source</id>
            <phase>generate-sources</phase>
            <goals>
              <goal>add-source</goal>
            </goals>
            <configuration>
              <sources>
                <source>src/generated/java/</source>
              </sources>
            </configuration>
          </execution>
        </executions>
      </plugin>
      <!-- Needed since the default format of cobertura is html and sonar asks for xml -->
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>cobertura-maven-plugin</artifactId>
        <version>2.5.1</version>
        <configuration>
          <format>xml</format>
        </configuration>
      </plugin>
    </plugins>
  </build>