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  1. JDK
  2. JDK-8243210

ClhsdbScanOops fails with NullPointerException in FileMapHeader.inCopiedVtableSpace

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 15
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
      svc
    • Resolved In Build:
      b20
    • OS:
      os_x

      Description

      The following error happens in hs-tier2 testing. Seems to happen on OSX only.
      ...
      0x00000007e4ba3b68 java/lang/String
      0x00000007e4ba3bf8 java/lang/String
      0x00000007e4ba3c88 java/lang/String
      0x00000007e4ba3cc0 java/lang/String
      0x00000007e4ba3e98 java/lang/String
      Error: java.lang.NullPointerException
      java.lang.NullPointerException
      at jdk.hotspot.agent/sun.jvm.hotspot.memory.FileMapInfo$FileMapHeader.inCopiedVtableSpace(FileMapInfo.java:154)
      at jdk.hotspot.agent/sun.jvm.hotspot.memory.FileMapInfo.inCopiedVtableSpace(FileMapInfo.java:134)
      at jdk.hotspot.agent/sun.jvm.hotspot.types.basic.BasicTypeDataBase.findDynamicTypeForAddress(BasicTypeDataBase.java:302)
      at jdk.hotspot.agent/sun.jvm.hotspot.runtime.VirtualBaseConstructor.instantiateWrapperFor(VirtualBaseConstructor.java:102)
      at jdk.hotspot.agent/sun.jvm.hotspot.oops.Metadata.instantiateWrapperFor(Metadata.java:76)
      at jdk.hotspot.agent/sun.jvm.hotspot.utilities.RobustOopDeterminator.oopLooksValid(RobustOopDeterminator.java:75)
      at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor$33.doit(CommandProcessor.java:1191)
      at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:2113)
      at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.executeCommand(CommandProcessor.java:2083)
      at jdk.hotspot.agent/sun.jvm.hotspot.CommandProcessor.run(CommandProcessor.java:1963)
      at jdk.hotspot.agent/sun.jvm.hotspot.CLHSDB.run(CLHSDB.java:99)
      at jdk.hotspot.agent/sun.jvm.hotspot.CLHSDB.main(CLHSDB.java:40)
      at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.runCLHSDB(SALauncher.java:280)
      at jdk.hotspot.agent/sun.jvm.hotspot.SALauncher.main(SALauncher.java:483)
      hsdb> + quit

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              • Assignee:
                cjplummer Chris Plummer
                Reporter:
                iklam Ioi Lam
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                Dates

                • Created:
                  Updated:
                  Resolved: