[ERROR] Failed to execute goal org.codehaus.mojo:sonar-maven-plugin:2.2:sonar (default-cli) on project com.sap.bw.parent: Can not execute SonarQube analysis: Unable to read and import the source file : '/Disk1/home/hudson/hudson/jobs/com.sap.bw.modeling.deploy/workspace/gitRepo/com.sap.bw.qd.formula.tests/xtend-gen/com/sap/bw/qd/formula/scoping/ScopeUnitTest.java' with the charset : 'UTF-8'. Duplicate source for resource: com.sap.bw.qd.formula.scoping.ScopeUnitTest -> [Help 1]

<build>
		<plugins>
			<plugin>
				<groupId>org.eclipse.xtend</groupId>
				<artifactId>xtend-maven-plugin</artifactId>
				<!-- in the target we use 2.4.3 but in ide 2.5.x, so we use 2.5.x here 
					as well since it works -->
				<version>2.5.2</version>
				<executions>
					<execution>
						<goals>
							<goal>compile</goal>
							<!-- <goal>xtend-install-debug-info</goal> -->
							<goal>testCompile</goal>
							<!--  <goal>xtend-test-install-debug-info</goal> -->
						</goals>
					</execution>
				</executions>
				<configuration>
					<outputDirectory>xtend-gen</outputDirectory>
					<testOutputDirectory>xtend-gen</testOutputDirectory>					
				</configuration>
			</plugin>
			<!-- <plugin>
				<groupId>org.eclipse.tycho</groupId>
				<artifactId>tycho-maven-plugin</artifactId>
				<version>0.19.0</version>
				<extensions>true</extensions>
			</plugin> -->
		</plugins>
	</build>