RFR: JDK-8147447: [TESTBUG] serviceability/tmtools/jstack/WaitNotifyThreadTest.java test fails

[Alexander Kulyakhtin]

Hi,

Could you, please, review this minor test-only change

CR: https://bugs.openjdk.java.net/browse/JDK-8147447 "[TESTBUG] serviceability/tmtools/jstack/WaitNotifyThreadTest.java test fails"
Webrev: http://cr.openjdk.java.net/~akulyakh/8147447/index.html

The test WaitNotifyThreadTest.java tries expects to find in the jstack output the string similar to:
'waiting on <0x000000008f64e6d0> (a java.lang.Object)'
However, with the -Xcomp option turned on there is no object reference available and the same strings look like:
'waiting on <no object reference available>'
This causes the false failures of the test when executed with the -Xcomp option.

We are modifying the test so it takes into account the possible difference between the jstack outputs.

The same issue has been present in the legacy test from which this test has been ported, so it is not a new and not a regression issue.

Best regards,
Alexander