(urgent) (15) RFR (trivial): 8235965: Tests using ThreadLocalHandshakes need to stop using it as it no longer exists

[Igor Ignatev]

LGTM

— Igor

> On Dec 15, 2019, at 5:58 PM, David Holmes <David.Holmes at oracle.com> wrote:
> 
> Bug: https://bugs.openjdk.java.net/browse/JDK-8235965
> webrev: http://cr.openjdk.java.net/~dholmes/8235965/webrev/
> 
> The ThreadLocalHandshakes flag was made obsolete in JDK 14 and has now expired in JDK 15. Tests using it should have been updated when it was made obsolete.
> 
> test/hotspot/jtreg/runtime/NMT/SafepointPollingPages.java
> 
> Had two @run lines with the flag enabled/disabled, so this reduces to one @run line without the flag.
> 
> test/hotspot/jtreg/runtime/handshake/HandshakeWalkStackFallbackTest.java
> 
> runs the HandshakeWalkStackTest.java test with the flag is disabled. As the flag no longer exists and cannot be disabled there is nothing to test and this test is removed as it is now exactly the same as HandshakeWalkStackTest.
> 
> The latter is causing tier1 test failures so I'd like to fix ASAP.
> 
> Thanks,
> David
>