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  1. JDK
  2. JDK-8194759

Support caching class mirror objects

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    • Icon: Enhancement Enhancement
    • Resolution: Fixed
    • Icon: P2 P2
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      Currently with G1 GC there are two types of archive-able heap regions, the open archive heap region and closed archive heap region. In open archive heap regions, objects within the region can have out-going references to other regions within the java heap. In JDK 10, the constant pool's resolved_references arrays (with resolved string constants) were supported to be cached in the open archive region at CDS dump time and used in subsequent JVM executions without recreating those array objects. The class mirror objects are good candidate for caching at CDS dump time. The mirrors will be stored in the open archive heap regions as the resolved_references arrays.

      Support G1 GC, 64-bit (non-Windows). Requires UseCompressedOops and UseCompressedClassPointers.

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        		 Test plan for JDK-8194759 Support caching class mirror objects Sub-task Resolved Jiangli Zhou  

            jiangli Jiangli Zhou
            jiangli Jiangli Zhou
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