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  1. Jenkins
  2. JENKINS-68514

Prepare SLOCCount for removal of JAXB and Java 11 requirement


    • Icon: Improvement Improvement
    • Resolution: Fixed
    • Icon: Major Major
    • sloccount-plugin
    • None
    • 1.26

      As described in Dependencies and Class Loading:

      Java defines a Thread.getContextClassLoader(). Jenkins does not use this much; it will normally be set by the servlet container to the Jenkins core loader.

      Unfortunately, JAXB has a design flaw in that JAXBContext#newInstance expects JAXB to be available in the thread's context class loader. With JAXB being detached to a separate plugin as of recent Java 11 changes, JAXB is no longer available in the Jenkins core loader. This causes a failure to load JAXB.

      This plugin has been identified as containing such a call to JAXBContext#newInstance The suggested solution is to wrap calls to JAXBContext#newInstance with a try/finally block to set the thread's context class loader to that of the plugin, which (by virtue of a plugin-to-plugin dependency on JAXB API plugin) enables JAXB to be loaded. See the following PR for an example:


            alecharp Adrien Lecharpentier
            basil Basil Crow
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