[jira] [Created] (UIMA-3133) Eclipse launcher plugin fails if uimaj-core not on project classpath

["Marshall Schor (JIRA)" <de...@uima.apache.org>]

Marshall Schor created UIMA-3133:
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             Summary: Eclipse launcher plugin fails if uimaj-core not on project classpath
                 Key: UIMA-3133
                 URL: https://issues.apache.org/jira/browse/UIMA-3133
             Project: UIMA
          Issue Type: Bug
          Components: Eclipse plugins
    Affects Versions: 2.4.1SDK
            Reporter: Marshall Schor
            Assignee: Marshall Schor
             Fix For: 2.4.2SDK


The Launcher launches a small Java class which needs the uimaj-core classes to run.  The Launcher includes the project's classpath, so if uimaj-core is on that classpath, all is well.  But there's no requirement that uimaj-core be on the project's classpath (for example, imagine a project for an aggregate, that just contains xml descriptors, etc.).  In that case, the failure happens.

The launcher is attempting to handle this by suffixing the uimaj-ep-runtime jar to the launched classpath.  That worked in 2.4.0 and earlier, because that plugin jar had all the uimaj-core classes.  However, as of 2.4.1, we changed the packaging of this, and the uimaj-ep-runtime is now set up to have embedded jar files, with an OSGi Bundle-Classpath which identifies these Jars.  That doesn't help this Jar's usage as just a plain (non-OSGi) Jar.  

Reported by Peter Klügl who also discovered the fix in project Ruta.  The fix here is slightly faster - only the uimaj-core jar is included (that's all the launcher class needs).

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