[jboss-jira] [JBoss JIRA] (DROOLS-3277) KieScanner in Scala fat-jar application does not work due to Plexus configuration

[Michael Reynolds (Jira)]

Michael Reynolds created DROOLS-3277:
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             Summary: KieScanner in Scala fat-jar application does not work due to Plexus configuration
                 Key: DROOLS-3277
                 URL: https://issues.jboss.org/browse/DROOLS-3277
             Project: Drools
          Issue Type: Feature Request
          Components: core engine
    Affects Versions: 7.13.0.Final
            Reporter: Michael Reynolds
            Assignee: Mario Fusco
         Attachments: components.xml, out.log

The configuration required for all the KIE related components wired together with Sisu and in Plexus is spread out among many files with the same name/location in various library jars.

The SBT assembly plugin is the standard for building a Scala fat-jar application. When it multiple versions of the same file when squashing the jars together it attempts to apply a merge strategy to them. For the Sisu configuration, it is simple enough to apply a "concat" merge strategy. However, the META-INF/plexus/components.xml cannot be automatically merged. Unless all the elements are present, various component lookups will fail when using the KieScanner.

I've provided the following attachments related to this case:

||File||Description||
|out.log|Output of starting the fat-jar application without properly merging the Sisu and Plexus configuration files|
|components.xml|The merged components.xml file I created that resolves this issue.|




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