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  1. JDK
  2. JDK-8316417

ObjectMonitorIterator does not return the most recent monitor and is incorrect if no monitors exists

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    Description

      ObjectMonitorIterator fails to return the most recent monitor added. It starts with returning the `nextOM()` ObjectMonitor from the `_head` ObjectMonitor but fails to ever return the `_head` ObjectMonitor.
      The current implementation can also not handle that the `_head` is nullptr (no monitors in the system) and returns a null ObjectMonitorIterator. Which is interpreted as `monitor list not supported, too old hotspot VM`.

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. JDK-8259008 ArithmeticException was thrown at "Monitor Cache Dump" on HSDB

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. JDK-8316401 sun/tools/jhsdb/JStackStressTest.java failed with "InternalError: We should have found a thread that owns the anonymous lock"

          • P4 - Minor loss of function, or other problem where easy workaround is present.
          • Resolved
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          Commit Commit openjdk/jdk/50a7a04e

          Review Review openjdk/jdk/15782

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              aboldtch Axel Boldt-Christmas
              aboldtch Axel Boldt-Christmas
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