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  1. Log4j 2
  2. LOG4J2-1687

NPE in ThrowableProxy when resolving stack in Java EE/OSGi environment

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.7
    • Fix Version/s: 2.8
    • Component/s: Core
    • Labels:
    • Environment:
      • java version "1.7.0_80" ,Java(TM) SE Runtime Environment (build 1.7.0_80-b15), Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
      • Jboss EAP 5.2.0-EAP

      Description

      NPE when logging in Java EE/OSGi environment.

      In some cases the ClassLoader ( https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html#getClassLoader() ) will be null for a Class.

      With the changes introduced in
      https://issues.apache.org/jira/browse/LOG4J2-1457 logging with %xEx can cause a NullPointerExeception when trying to resolve the stack.

      Since it's not a common occurrence in most environments I suggest the ThrowableProxy swallow the NPE in the same way it swallows SecurityExeception and other classloading exceptions to avoid extra branching for all environments.

        Attachments

        1. LOG4J2-1687.patch
          4 kB
          Robert Christiansen
        2. patch.diff
          1 kB
          Robert Christiansen
        3. error.log
          4 kB
          Robert Christiansen

          Activity

            People

            • Assignee:
              garydgregory Gary Gregory
              Reporter:
              hjertmann Robert Christiansen
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              Dates

              • Created:
                Updated:
                Resolved: