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  1. JDK
  2. JDK-8252526

Remove excessive inclusion of jvmti.h and jvmtiExport.hpp

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    Details

    • Type: Enhancement
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 16
    • Component/s: hotspot
    • Labels:
    • Subcomponent:
    • Resolved In Build:
      b25

      Description

      jvmti.h is included 905 times and jvmtiExport.hpp is included 776 times (by 971 hotspot .o files). Most of these are unnecessarily included by the following 3 popular header files:

      javaClasses.hpp: ThreadStatus is rarely used, and should be moved to a separate header file. The enum is also changed to an enum class for better type safety (see JDK-8247938).

      os.hpp: No need to include jvmti.h. Use forward declaration for "struct jvmtiTimerInfo;" instead.

      thread.hpp: No need to include jvmExport.hpp. Use forward declaration for JvmtiSampledObjectAllocEventCollector and JvmtiVMObjectAllocEventCollector instead.

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              Assignee:
              iklam Ioi Lam
              Reporter:
              iklam Ioi Lam
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                Updated:
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