war overlay mechanism does not work for classes
-----------------------------------------------

                 Key: MWAR-73
                 URL: http://jira.codehaus.org/browse/MWAR-73
             Project: Maven 2.x War Plugin
          Issue Type: Improvement
    Affects Versions: 2.0.1, 2.0, 2.0.2, 2.1
         Environment: all OS, all JDK, currently using jdk1.4.2_10 and 
jdk1.5.0_06 under linux fedora core 5/x86_64 and sunOS5.10/Sparc64
            Reporter: mark struberg
         Attachments: maven-war-plugin-patch.tar.gz

PROBLEM DESCRIPTION:
When building a WAR (e.g. war2.war) which depends on another WAR (e.g. 
war1.war), the web-resources from the dependant war are beeing used as base for 
overlaying. 

This mechanism doesn't currently work for the classes within the dependant war, 
altough it is specified by the plugin documentation 
See the SampleActionDependency.class in 
http://maven.apache.org/plugins/maven-war-plugin/examples/war-overlay.html 

APPLIED PATCH:
I have written two simple war examples war1 and war2 and extended the 
maven-war-plugin by an own WarClasspathMojo which is bound to the phase 
generate-resources to fix this issue.

Since i found no way to add non-artifact parts to the classpath, i simply 
unpack all dependant war files (reusing the functions already there in 
AbstractWarMojo) and add a resource-path to the $explodedWarDir/WEB-INF/classes 
for each of them. The 

The implementation fits all my needs, but if you provide me with a hint how it 
may be improved, then let me know.

KNOWN ISSUES:
This mechanism currently doesn't work if you have specified to generate an 
archive for the dependant war's classes.

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