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  1. JDK
  2. JDK-8239055

Wrong implementation of VMState.hasListener

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    • b13
    • x86_64
    • windows_10

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        A DESCRIPTION OF THE PROBLEM :
        https://github.com/openjdk/jdk/blob/03721247d8f3d6b2aefe2826a59c10fd1fad51cb/src/jdk.jdi/share/classes/com/sun/tools/jdi/VMState.java#L176-L178

        shows that the implementation is still implemented in the same way as seen in JDK 1.8:

            synchronized boolean hasListener(VMListener listener) {
                return listeners.contains(listener);
            }

        listener is of type VMListener, while listeners is declared to contain WeakReference<VMListener>, so this method never returns true.

        removeListener(VMListener listener) is implemented correctly.


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                fmatte Fairoz Matte
                webbuggrp Webbug Group
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