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  1. JDK
  2. JDK-8205531

jcmd VM.classloaders should fold similar loaders

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Details

    • Enhancement
    • Resolution: Fixed
    • P4
    • 11
    • 11
    • hotspot
    • None
    • svc
    • b20

    Backports

      Description

        VM.classloaders prints a tree of class loaders. This tree can grow a lot and become unwieldy, especially with a lot of similar loaders. One prime example is the DelegatingClassLoader. It would be helpful were all these loaders:

        13114:
        +-- <bootstrap>
              |
              +-- "platform", jdk.internal.loader.ClassLoaders$PlatformClassLoader
                    |
                    +-- "app", jdk.internal.loader.ClassLoaders$AppClassLoader
                          |
                          +-- test3.internals.InMemoryClassLoader
                                |
                                +-- jdk.internal.reflect.DelegatingClassLoader
                                |
                                +-- jdk.internal.reflect.DelegatingClassLoader
                                |
                                +-- jdk.internal.reflect.DelegatingClassLoader
                                |
                                +-- jdk.internal.reflect.DelegatingClassLoader
                                |
                                +-- jdk.internal.reflect.DelegatingClassLoader
                                |
                                ...... repeat 1495 times

         folded into one:

        13114:
        +-- <bootstrap>
              |
              +-- "platform", jdk.internal.loader.ClassLoaders$PlatformClassLoader
                    |
                    +-- "app", jdk.internal.loader.ClassLoaders$AppClassLoader
                          |
                          +-- test3.internals.InMemoryClassLoader
                                |
                                +-- jdk.internal.reflect.DelegatingClassLoader (+ 1499 more)


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            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-8206048 jcmd VM.classloaders should fold similar loaders

            • P4 - Minor loss of function, or other problem where easy workaround is present.
            • 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-8206643 jcmd VM.classloaders should fold similar loaders

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

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                stuefe Thomas Stuefe
                stuefe Thomas Stuefe
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                  Created:
                  Updated:
                  Resolved: