How to tell YUI compressor maven plugin to output to WAR file and/or source directories? - maven

Question

I'm trying to add YUI compressor to my JSF eclipse maven project. I'm not a maven professional, I just use the m2e maven plugin to resolve my dependencies and to right click my project und export it to a .WAR file. At this point, the YUI compressor plugin is working and compresses all css and javascript files as soon as I change and save a resource (i.e. a html file). My problem is, that it's neither putting the compressed files back to MyProject/src/main/webapp/resources/css|js nor into the resulting .WAR file. It puts them into MyProject/target/app-0.01-SNAPSHOT/resources/css|js which seems to be of no (?) use. How can I set it up to put the files into the .WAR file and into the original input-directories (so i can see and include them in my html files)? I have read a couple of threads here, but couldn't find the solution.
Here is the relevant part from my pom.xml:
<build>
<plugins>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>yuicompressor-maven-plugin</artifactId>
<version>1.3.0</version>
<executions>
<execution>
<goals>
<goal>compress</goal>
</goals>
</execution>
</executions>
<!-- I was playing around with this. At this point, the following does the same as the default
setting, i.e. putting the files into the /target/ directory, which is not what i want/need. -->
<configuration>
<sourceDirectory>${project.basedir}/src/main/webapp/resources/js</sourceDirectory>
<outputDirectory>${project.build.directory}/${project.build.finalName}/resources/js</outputDirectory>
</configuration>
</plugin>
</plugins>
<pluginManagement>
<plugins>
<!--This plugin's configuration is used to store Eclipse m2e settings
only. It has no influence on the Maven build itself. -->
<plugin>
<groupId>org.eclipse.m2e</groupId>
<artifactId>lifecycle-mapping</artifactId>
<version>1.0.0</version>
<configuration>
<lifecycleMappingMetadata>
<pluginExecutions>
<pluginExecution>
<pluginExecutionFilter>
<groupId>net.alchim31.maven</groupId>
<artifactId>yuicompressor-maven-plugin</artifactId>
<versionRange>[1.3.0,)</versionRange>
<goals>
<goal>compress</goal>
</goals>
</pluginExecutionFilter>
<action>
<execute>
<runOnIncremental>true</runOnIncremental>
</execute>
</action>
</pluginExecution>
</pluginExecutions>
</lifecycleMappingMetadata>
</configuration>
</plugin>
</plugins>
</pluginManagement>
</build>