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  1. JDK
  2. JDK-8278826

Print error if Shenandoah flags are empty (instead of crashing)

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    • gc
    • b03
    • generic
    • generic

    Backports

      Description

        Providing '-XX:ShenandoahGCMode=' or '-XX:ShenandoahGCHeuristics=' (when parsed) causes a crash without meaningful info. E.g.:

        java -XX:+UseShenandoahGC -XX:ShenandoahGCMode= -version
        java -XX:+UseShenandoahGC -XX:ShenandoahGCMode=satb -XX:ShenandoahGCHeuristics= -version
        java -XX:+UseShenandoahGC -XX:+UnlockExperimentalVMOptions -XX:ShenandoahGCMode=iu -XX:ShenandoahGCHeuristics= -version
        java -XX:+UseShenandoahGC -XX:+UnlockDiagnosticVMOptions -XX:ShenandoahGCMode=passive -XX:ShenandoahGCHeuristics= -version

        Instead it can be reported similar to '=wrong', e.g:

        Error occurred during initialization of VM
        Unknown -XX:ShenandoahGCMode option (null)

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            backported by

            Backport - A issue that is required to port a Bug or Feature into another product release. This issue type is generally associated with the main Bug/Feature to represent each individual release of the port. JDK-8297322 Print error if Shenandoah flags are empty (instead of crashing)

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • Resolved
            links to

            Commit Commit openjdk/jdk17u-dev/3f799528

            Commit Commit openjdk/jdk/247ea71d

            Review Review openjdk/jdk17u-dev/893

            Review Review openjdk/jdk/6842

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                dchuyko Dmitry Chuyko
                dchuyko Dmitry Chuyko
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                  Created:
                  Updated:
                  Resolved: