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  1. OpenMRS Core
  2. TRUNK-56

synchronized blocks in ModuleClassLoader causing dead locks

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Should
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: OpenMRS 1.7.0
    • Component/s: None
    • Labels:
      None
    • Complexity:
      Undetermined

      Description

      When running the chica module and all its dependencies (dss, atd, sockethl7listener, rgccd, chirdlutil), I intermittently get a deadlock in the ModuleClassLoader synchronization blocks when I restart tomcat and autostart my tasks.

      I think the gist of the problem is that I am calling class.getMethod in the atd module that is referencing a class in the chica module (which depends on atd) in a task initialization method. I think the module class loading must not always be finished when the tasks are trying to start. Maybe that is why the error is intermittent.

        Attachments

        1. 1974-moduleclassloader-synchronized.patch
          6 kB
          Burke Mamlin
        2. deadlock_trace.txt
          15 kB
          Burke Mamlin

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              Assignee:
              bwolfe Ben Wolfe
              Reporter:
              tmdugan Tammy Dugan
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                Updated:
                Resolved: