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  1. JDK
  2. JDK-8204170

MXBeanException.java assumes the existence of a pool that doesn't support usage threshold

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    • Type: Enhancement
    • Status: Closed
    • Priority: P4
    • Resolution: Won't Fix
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: core-svc
    • Labels:
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      Description

      The tests searches for a MemoryPoolMXBean that returns false for isUsageThresholdSupported(), and then uses one of those pools to trigger UnsupportedOperationExceptions when setUsageThreshold is used.

      ZGC doesn't provide a pool that doesn't support usage threshold, and the test therefore throws an NPE.

      The suggested fix is to add:
              if (pool == null) {
                return; // All pools support usage threshold
              }

      An alternative fix would be to filter out the test if ZGC is used.

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            Assignee:
            stefank Stefan Karlsson
            Reporter:
            stefank Stefan Karlsson
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              Updated:
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