OpenJPA
  1. OpenJPA
  2. OPENJPA-1350

Race condition in the MetaDataRepository

    Details

    • Type: Bug Bug
    • Status: Closed
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 1.0.3, 1.2.1, 2.0.0-M3
    • Fix Version/s: 1.2.3, 1.3.0, 2.0.0-beta
    • Component/s: kernel
    • Labels:
      None

      Description

      There is a race condition in the MetaDataRepository where if multiple threads try to get MetaData for the same alias, one or more of the threads can get incorrect data. This can only occur on the first (few) thread(s). After init is complete, the problem does not occur.

      The error that is observed is the following:
      <openjpa-2.0.0-SNAPSHOT-r422266:824454M fatal user error> org.apache.openjpa.util.MetaDataException: Could not locate metadata for the class using alias "MdrTestEntity". Perhap
      s you meant MdrTestEntity, which is a close match. This could mean that you have mis-spelled the alias, or that OpenJPA failed to properly load the metadata for the type whose
      alias is "MdrTestEntity". Registered alias mappings: "

      {MdrTestEntity=[class org.apache.openjpa.persistence.meta.MdrTestEntity]}

      "

      1. OJ1350_1.0.x.patch
        14 kB
        Jody Grassel
      2. OPENJPA-1350-1.2.x.patch
        13 kB
        Jody Grassel
      3. OPENJPA-1350-1.2.x.patch
        11 kB
        Rick Curtis

        Activity

        Hide
        Jody Grassel added a comment -

        Patch for OpenJPA 1.2.x

        Show
        Jody Grassel added a comment - Patch for OpenJPA 1.2.x
        Hide
        Rick Curtis added a comment -

        Attaching a patch which includes a new test case and the code fix for the 1.2.x release.

        Show
        Rick Curtis added a comment - Attaching a patch which includes a new test case and the code fix for the 1.2.x release.

          People

          • Assignee:
            Rick Curtis
            Reporter:
            Rick Curtis
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            Dates

            • Created:
              Updated:
              Resolved:

              Development