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• JDI ThreadReference.stop
• JDI ThreadReference.interrupt
• JDI ThreadReference.popFrame
• JDI ThreadReference.forceEarlyReturn
• JDI StackFrame.setValue

JDWP agent options

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As a temporary solution to allow existing debuggers work with virtual threads, the JDWP agent will track virtual threads so they can be enumerated for debuggers that want to enumerate all virtual threads. The options that control this behavior are:

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• enumeratevthreads control whether or not virtual threads are included in list of threads returned by JDWP VirtualThread.GetAllThreads command.
• trackvthreads controls which virtual threads will be returned when enumeratevthreads=y.
• fakevthreadstartevent is independent of the two others. If y, then before sending an event, send a fake THREAD_START event for if the debugger hasn’t already been notified about the virtual thread that the event occurs on. Note currently there is a bug, and if trackvthreads=all, no fake THREAD_START will ever be sent. This is only an issue if the debug agent is started after some virtual threads have been created.

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As a temporary solution to allow existing debuggers work with virtual threads, the JDWP agent will track virtual threads so they can be enumerated for debuggers that want to enumerate all virtual threads. The options that control this behavior are:

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