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  1. JDK
  2. JDK-8135251

Use Unsafe.defineAnonymousClass for loading Nashorn script code

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Details

    • Bug
    • Resolution: Fixed
    • P3
    • 9
    • 9
    • core-libs
    • None
    • b83
    • generic
    • generic

    Backports

      Description

        We should use Unsafe.defineAnonymousClass to load Nashorn script code. We can cut down significantly on the number of class loaders (as we no longer need one per compilation job in order for the generated classes to be GC eligible). Anonymous classes are said to be more aggressively optimized (at least that's what Aleksey Shipilev told me). Class installation time also gets reduced to 80% of what it was before.

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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-8141736 Use Unsafe.defineAnonymousClass for loading Nashorn script code

            • P3 - Major loss of function.
            • Resolved
            relates to

            Bug - A problem which impairs or prevents the functions of the product. JDK-8059768 revisit classloader command line option and class loader policy in nashorn

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8136700 Make sure Context.anonymousHostClasses doesn't grow unbounded

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

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                attila Attila Szegedi
                attila Attila Szegedi
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                  Created:
                  Updated:
                  Resolved: