RFR: 8264711: More runtime TRAPS cleanups [v4]

[Harold Seigel]

On Mon, 5 Apr 2021 19:08:38 GMT, Patricio Chilano Mateo <pchilanomate at openjdk.org> wrote:

>> Harold Seigel has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   remove unneeded statement
>
> src/hotspot/share/runtime/synchronizer.cpp line 609:
> 
>> 607:   // intentionally do not use CHECK on check_owner because we must exit the
>> 608:   // monitor even if an exception was already pending.
>> 609:   if (monitor->check_owner(current)) {
> 
> We can actually throw IMSE from check_owner() if this thread is not the real owner.

I reverted this change.  Thanks.

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PR: https://git.openjdk.java.net/jdk/pull/3345