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  1. Maven WAR Plugin
  2. MWAR-405

Workaround XStream incompatibility with Java9

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 3.0.0
    • Fix Version/s: 3.1.0
    • Component/s: None
    • Labels:
      None

      Description

      The problem is that XStreams tries to access "comparator" field of java.util.TreeMap and this is forbidden in Java9

      Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make field private final java.util.Comparator java.util.TreeMap.comparator accessible: module java.base does not "opens java.util" to unnamed module
Happens while initializing org.apache.maven.plugins.war.util.WebappStructureSerializer

      A possibile workaround is to change the initialization of XStreams in a way that only useful converters are registers, thus bypassing the problem

        Attachments

          Issue Links

          relates to

          Improvement - An improvement or enhancement to an existing feature or task. MWAR-397 Replace XStream with Modello to merge overlays

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. MWAR-375 Remove the useCache with its implementation

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          links to

          Web Link GitHub Pull Request #112

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              • Assignee:
                rfscholte Robert Scholte
                Reporter:
                eolivelli Enrico Olivelli
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                Dates

                • Created:
                  Updated:
                  Resolved: