Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-6651256

jstack: DeleteGlobalRef method call doesn't lead to descreasing of global refs count shown by jstack

    Details

    • Subcomponent:
    • Resolved In Build:
      b03
    • CPU:
      generic
    • OS:
      generic

      Backports

        Description

        Test case:

        1. Create a thread and measure a number of jni global refs shown by jstack
        i.e. jstack output
        JNI global references: 629

        2. Increase the jni global refs count by calling of NewGlobalRef method 1000 times
        i.e. jstack output
        JNI global references: 1608

        3. Decrease the jni global refs count by calling of DeleteGlobalRef method 1000 times
        i.e. UNEXPECTED jstack output
        JNI global references: 1612

        The behavior is the same for all platforms/configurations and may be not a jstack's bug.

        To run existing test
        1. ssh vmsqe-b2500-02.russia
        2. cd /set/vmsqe/execution/results/adhoc/os161219_tmtools/2008-01-16_1/vm/SOLARIS-SPARC/client/mixed/vm-SOLARIS-SPARC_client_mixed_my.tmtools.testlist2008-01-16-19-52-33/ResultDir/globalrefcount/
        3. sh rerun.sh

        affected test
        tmtools/jstack/jniglobalref/globalrefcount

          Attachments

            Issue Links

              Activity

                People

                • Assignee:
                  minqi Yumin Qi
                  Reporter:
                  osmirnovsunw Oleg Smirnov (Inactive)
                • Votes:
                  0 Vote for this issue
                  Watchers:
                  5 Start watching this issue

                  Dates

                  • Created:
                    Updated:
                    Resolved:
                    Imported:
                    Indexed: