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  1. JDK
  2. JDK-8193434

[GRAAL] Graal classes are not loaded with -Xshare:dump

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 10
    • Fix Version/s: 11
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b07
    • CPU:
      generic
    • OS:
      generic

      Description

      By default JVMCI and Graal JIT are initialized on first request of compilation.
      But it also can be triggered by switching off background compilation: -Xbatch. In which case it will try to initialize JVMCI and Graal during VM initialization:

      http://hg.openjdk.java.net/jdk/jdk/file/125716343184/src/hotspot/share/runtime/thread.cpp#l4236

      Unfortunately this mode does not work with dumping CDS archive: -Xshare:dump.

      java -Xshare:dump -Xlog:cds,cds+hashtables -XX:+UnlockDiagnosticVMOptions -XX:SharedArchiveFile=./test.jsa -Xbatch -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI -XX:+UseJVMCICompiler -Djvmci.Compiler=graal
      narrow_klass_base = 0x0000000800000000, narrow_klass_shift = 3
      Allocated temporary class space: 1073741824 bytes at 0x00000008c0000000
      Allocated shared space: 3221225472 bytes at 0x0000000800000000
      [0.038s][info][cds] Expanding shared spaces by 1048576 bytes [total 1048576 bytes ending at 0x800100000]
      Error occurred during initialization of VM
      java.lang.ExceptionInInitializerError
      at jdk.vm.ci.hotspot.HotSpotJVMCIRuntime.runtime(jdk.internal.vm.ci@10-internal/HotSpotJVMCIRuntime.java:83)
      at jdk.vm.ci.runtime.JVMCI.initializeRuntime(jdk.internal.vm.ci@10-internal/Native Method)
      at jdk.vm.ci.runtime.JVMCI.<clinit>(jdk.internal.vm.ci@10-internal/JVMCI.java:58)
      Caused by: java.lang.ClassNotFoundException: org/graalvm/compiler/hotspot/HotSpotGraalJVMCIServiceLocator

      Note, this is NOT normal way to run Graal as JIT. That is why I am targeting JDK 11.

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            • Assignee:
              ccheung Calvin Cheung
              Reporter:
              kvn Vladimir Kozlov
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              Dates

              • Created:
                Updated:
                Resolved: