(0.44) Fix virtual thread interrupts #19230
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In JDK19+, multiple thread objects can be associated to a J9VMThread: a virtual thread and its carrier thread. If a virtual thread is mounted, then the carrier thread is unmounted and vice-versa. In such cases, J9VMThread's state should not be used to determine if a thread object is interrupted. Instead, Thread.interrupted is used to determine if a thread object is interrupted. If a mounted thread is suspended, only set Thread.interrupted to TRUE and do not wake/interrupt the thread. This behaviour is expected in GetThreadStateMountedTest, which is a test added for virtual threads in JDK22. These changes are only added for virtual threads in JDK19+. Related: eclipse-openj9#18810 Signed-off-by: Babneet Singh <sbabneet@ca.ibm.com>
Signed-off-by: Jack Lu <Jack.S.Lu@ibm.com>
pshipton
approved these changes
Mar 26, 2024
babsingh
changed the title
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This PR backports the below changes: