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  1. JDK
  2. JDK-8328366

Thread.setContextClassloader from thread in FJP commonPool task no longer works after JDK-8327501

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    • b14
    • 23
    • b18
    • generic
    • generic
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      Description

        Christian Wimmer in JDK-8327501 writes:

        The fix for JDK-8327501 has a compatibility impact that has been overlooked: Using `InnocuousForkJoinWorkerThread` means that any task that runs in the common pool can no longer use `Thread.currentThread().setContextClassLoader(...)` - that unconditionally throws a `SecurityException`.

        This breaks many existing Java libraries and frameworks. One example is Quarkus. See:
        https://github.com/quarkusio/quarkus/issues/39526

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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-8338028 Thread.setContextClassloader from thread in FJP commonPool task no longer works after JDK-8327501

            • P3 - Major loss of function.
            • Open

            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-8333096 Thread.setContextClassloader from thread in FJP commonPool task no longer works after JDK-8327501

            • P3 - Major loss of function.
            • Resolved

            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-8338188 Thread.setContextClassloader from thread in FJP commonPool task no longer works after JDK-8327501

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

            Bug - A problem which impairs or prevents the functions of the product. JDK-8327501 Common ForkJoinPool prevents class unloading in some cases

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

            Commit Commit openjdk/jdk22u/3663b2d6

            Commit Commit openjdk/jdk/28216aa9

            Commit Commit(master) openjdk/jdk21u-dev/eb103b0e

            Review Review openjdk/jdk22u/206

            Review Review openjdk/jdk/18374

            Review Review(master) openjdk/jdk21u-dev/338

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                vklang Viktor Klang
                sgehwolf Severin Gehwolf
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                  Created:
                  Updated:
                  Resolved: