RfR - 8130649: java/util/logging/LoggingDeadlock2.java times out

[Daniel Fuchs]

Please find below a changeset to address:

8130649: java/util/logging/LoggingDeadlock2.java times out
https://bugs.openjdk.java.net/browse/JDK-8130649

The proposed changeset doesn't fix the issue but instruments
the test a bit more so that we can get a clue of what is
happening.

http://cr.openjdk.java.net/~dfuchs/webrev_8130649/webrev.00/

When a test fails in timeout, jtreg obtains a Thread Dump
before killing it. However - in our case - that thread
dump is quite uninteresting - because the real test is
performed in a subprocess - and that's where bad things
could be happening.

The proposed instrumentation will try to obtain a thread
dump of the subprocess after a sensible time (60secs) but
before the jtreg timeout kicks in (default jtreg timeout
should be about 120sec x time factor - if I remember well).

best regards,

-- daniel