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From "Chris Lance (JIRA)" <j...@codehaus.org>
Subject [jira] Created: (MWAR-111) Transitive dependencies of optional dependencies are included in WEB-INF/lib
Date Thu, 02 Aug 2007 16:28:13 GMT
Transitive dependencies of optional dependencies are included in WEB-INF/lib
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                 Key: MWAR-111
                 URL: http://jira.codehaus.org/browse/MWAR-111
             Project: Maven 2.x War Plugin
          Issue Type: Bug
    Affects Versions: 2.0.2
         Environment: Maven 2.0.7, JDK 1.6.0_01-b06, JavaEE 5
            Reporter: Chris Lance
         Attachments: TestProject.zip

I have an EAR project (TestEAR) which contains two modules:

1. A JAR module (TestJAR) which has one dependency: commons-lang 2.3
2. A WAR module (TestWAR) which uses [these instructions|http://maven.apache.org/plugins/maven-war-plugin/examples/war-manifest-guide.html]
to declare a dependency on TestJAR so that TestJAR is included in TestWAR's manifest classpath,
but not copied into WEB-INF/lib (i.e. declares the dependency optional).

This works fine for TestJAR itself, but its transitive dependency (commons-lang 2.3) is still
copied into WEB-INF/lib. I don't believe this is the correct behavior since all dependencies
of a JAR packaged in the EAR must also be packaged in the EAR. So, all a WAR should have to
do is put the transitive dependencies in its manifest classpath to inherit them. Basically:
in a WAR, transitive dependencies of "optional" dependencies should inherit the "optional"
flag.

I have included a simple test project as an example. Unzip, cd TestProject, and mvn install.
Look in TestEAR's target dir and you will see that commons-lang is included in the EAR. Then
look in TestWAR's target dir and you will see that commons-lang is also included in both the
manifest classpath and the WEB-INF/lib dir.

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