plugins guess filename from 'dependency', should use 'artifact'

Quite a few plugins are mistakenly referring to and looping over dependencies when they mean to use artifacts. For example this code in the war plugin:

<j:forEach var="dep" items="$

{pom.dependencies}

">
<j:if test="$

{dep.getProperty('war.bundle.jar')=='true'}">
<lib dir="${maven.repo.local}/${dep.artifactDirectory}/jars/">
<include name="${dep.artifact}"/>
</lib>
</j:if>
</j:forEach>

Will not work if the 'jar' element has been used to override the filename of a dependency. In maven Artifacts know their filename, Dependencies don't. You can navigate from an Artifact to a Dependency if required, so that one fix might look like:

<j:forEach var="lib" items="${pom.artifacts}">
<j:set var="dep" value="${lib.dependency}"/>
<j:if test="${dep.getProperty('war.bundle.jar')=='true'}

">
<lib dir="$

{maven.repo.local}

">
<include name="$

{lib.path}

"/>
</lib>
</j:if>
</j:forEach>

While this removes all knowledge of the internal structure of the local repo from the plugin, it is still not ideal. If a project is allowed to depend on jars that are outside the local repository via the jar override mechanism then plugins should not use 'maven.repo.local' either.

To find these issues in the plugins, go to the plugins-build directory and do:
$ find . -name '*.jelly' | xargs grep pom.dependencies
(NB the gump and release plugins are listed by this but are not affected)
also do:
$ find . -name '*.jelly' | xargs grep maven.repo.local
the second set will pick out most of the first set of problems, but will also find the occasional case where an individual dependency is misused.

The following files are known to be affected by this bug:
./ant/plugin.jelly
./deploy/plugin.jelly
./ear/plugin.jelly
./ejb/plugin.jelly
./idea/plugin.jelly
./jboss/plugin.jelly
./jdeveloper/plugin.jelly
./jnlp/plugin.jelly
./uberjar/plugin.jelly
./war/plugin.jelly

(Patch to follow)