Add sources for maven to see (build-helper-maven-plugin)

pom.xml

      <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>${project.build.directory}/generated-sources/wsimport/</source>
							</sources>
						</configuration>
					</execution>
				</executions>
			</plugin>