During pre-certification of EAP for RHEL 6.4 I noticed instabilities of JBWS1702TestCase testInheritanceBare on IBM JDK 7 (SR3).
I was able to hit this issue even on RHEL 5.8 and RHEL 6.3 with IBM JDK 7 (SR3). But the test failures are random and always on testInheritanceBare. IBM JDK 7 is really tricky.
3 different sets of failed nodes - #2+#4, #3+#6, #5
Beaker RHEL 6.3:
4 GB RAM, 4 cores (Intel Xeon E5504)
Linux XXX.redhat.com 2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux
~30% of runs failed, xml report attached
Beaker RHEL 5.8:
2 GB RAM, 4 cores (Intel Xeon unknown version)
Linux YYY.redhat.com 2.6.18-308.el5 #1 SMP Fri Jan 27 17:17:51 EST 2012 x86_64 x86_64 x86_64 GNU/Linux
The same as for RHEL 6, ~30% of runs failed.
The same IBM JDK (ibm-java-x86_64-sdk-7.0-3.0.bin) installed as on Beaker RHEL machines, but wasn't able to hit the issue in 5 runs.