I've just run the Infinispan Testsuit for JDG 6.0.1.GA on RHEL 6.4_x86 - IBM JDK7, and the test is failing constantly (the interesting thing is that it hadn't fail on 64 bit system).

The log is:

testForceCommitOnOtherNode(org.infinispan.tx.recovery.admin.SimpleCacheRecoveryAdminTest) Time elapsed: 0.003 sec <<< FAILURE!
java.lang.AssertionError: expected:<0> but was:<1>
at org.testng.Assert.fail(Assert.java:89)
at org.testng.Assert.failNotEquals(Assert.java:480)
at org.testng.Assert.assertEquals(Assert.java:118)
at org.testng.Assert.assertEquals(Assert.java:365)
at org.testng.Assert.assertEquals(Assert.java:375)
at org.infinispan.tx.recovery.admin.SimpleCacheRecoveryAdminTest.assertInDoubtTxCount(SimpleCacheRecoveryAdminTest.java:214)
at org.infinispan.tx.recovery.admin.SimpleCacheRecoveryAdminTest.testForceCommitOnOtherNode(SimpleCacheRecoveryAdminTest.java:107)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:88)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:613)
at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:74)
at org.testng.internal.Invoker.invokeMethod(Invoker.java:673)
at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:846)
at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1170)
at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:125)
at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:109)
at org.testng.TestRunner.runWorkers(TestRunner.java:1147)
at org.testng.TestRunner.privateRun(TestRunner.java:749)
at org.testng.TestRunner.run(TestRunner.java:600)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:317)
at org.testng.SuiteRunner.access$000(SuiteRunner.java:34)
at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:351)
at org.testng.internal.thread.ThreadUtil$CountDownLatchedRunnable.run(ThreadUtil.java:147)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1121)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:614)
at java.lang.Thread.run(Thread.java:780)