RFR (S): [TESTBUG] gc/g1/TestGCLogMessages.java fails on 32bit arm after changes for JDK-8155094

[Thomas Schatzl]

Hi all,

  can I have reviews for this change that fixes the
gc/g1/TestGCLogMessages test for (atm unsupported but available) 32 bit
arm?

The reason is that the log message introduced with JDK-8155094 depends
on either C2 or JVMCI (Graal) available, which is not the case on 32
bit arm.

The fix adds a check for that log message to not require the log
message in this case to be present (actually it checks that it is not
there in this case).

The reason for this bug is that 32 bit ARM is not supported (but
available) so the test is not run as often, particularly not during
jprt (also for performance reasons).

CR:
https://bugs.openjdk.java.net/browse/JDK-8177059
Webrev:
http://cr.openjdk.java.net/~tschatzl/8177059/webrev/
Testing:
rbt, jprt

Thanks,
  Thomas