<build>
    <plugins>
      <plugin>
        <artifactId>maven-antrun-plugin</artifactId>
        <version>1.6</version>
        <executions>
          <execution>
            <phase>package</phase>
            <configuration>
              <target>
                <property name="maven.compile.classpath" refid="maven.compile.classpath" />
                <ant antfile="build.xml" />
              </target>
            </configuration>
            <goals>
              <goal>run</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
    </plugins>
  </build>