On Wed, 31 Mar 2021 03:40:49 GMT, David Holmes <[email protected]> wrote:
>> Robbin Ehn has updated the pull request with a new target base due to a
>> merge or a rebase. The pull request now contains two commits:
>>
>> - Merge branch 'master' into SuspendInHandshake
>> - 8257831: Suspend with handshake (review baseline)
>
> src/hotspot/share/prims/jvmtiEnv.cpp line 1009:
>
>> 1007: if (self_index >= 0) {
>> 1008: if (!JvmtiSuspendControl::suspend(current)) {
>> 1009: results[self_index] = JVMTI_ERROR_THREAD_NOT_ALIVE;
>
> Surely impossible when dealing with the current thread!
Another thread can win the race to suspend the current thread (if
claim_handshake() in try_process() fails). Then JVMTI_ERROR_THREAD_SUSPENDED
should be returned.
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PR: https://git.openjdk.java.net/jdk/pull/3191