Some ClientClusterEventsTest tests fail randomly

testFilterCustomEventsInCluster(org.infinispan.client.hotrod.event.ClientClusterEventsTest)  Time elapsed: 0.119 sec  <<< FAILURE!
java.lang.AssertionError: expected:<CustomEvent{key=2, value='two', timestamp=10917205818735, counter=3}> but was:<CustomEvent{key=2, value='two', timestamp=10917204740046, counter=1}>
    at org.testng.AssertJUnit.fail(AssertJUnit.java:59)
    at org.testng.AssertJUnit.failNotEquals(AssertJUnit.java:364)
    at org.testng.AssertJUnit.assertEquals(AssertJUnit.java:80)
    at org.testng.AssertJUnit.assertEquals(AssertJUnit.java:88)
    at org.infinispan.test.TestingUtil.assertAnyEquals(TestingUtil.java:1485)
    at org.infinispan.client.hotrod.event.CustomEventLogListener.expectSingleCustomEvent(CustomEventLogListener.java:64)
    at org.infinispan.client.hotrod.event.CustomEventLogListener.expectCreatedEvent(CustomEventLogListener.java:68)
    at org.infinispan.client.hotrod.event.ClientClusterEventsTest$4.call(ClientClusterEventsTest.java:130)
    at org.infinispan.client.hotrod.test.HotRodClientTestingUtil.withClientListener(HotRodClientTestingUtil.java:158)
    at org.infinispan.client.hotrod.event.ClientClusterEventsTest.testFilterCustomEventsInCluster(ClientClusterEventsTest.java:121)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
    at org.testng.TestRunner.privateRun(TestRunner.java:767)
    at org.testng.TestRunner.run(TestRunner.java:617)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
    at org.testng.SuiteRunner.access$000(SuiteRunner.java:38)
    at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:382)
    at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)

testFilteringInCluster(org.infinispan.client.hotrod.event.ClientClusterEventsTest)  Time elapsed: 0.103 sec  <<< FAILURE!
java.lang.AssertionError: 
    at org.testng.AssertJUnit.fail(AssertJUnit.java:59)
    at org.testng.AssertJUnit.assertTrue(AssertJUnit.java:24)
    at org.testng.AssertJUnit.assertNotNull(AssertJUnit.java:267)
    at org.testng.AssertJUnit.assertNotNull(AssertJUnit.java:259)
    at org.infinispan.client.hotrod.event.EventLogListener.pollEvent(EventLogListener.java:51)
    at org.infinispan.client.hotrod.event.EventLogListener.expectSingleEvent(EventLogListener.java:125)
    at org.infinispan.client.hotrod.event.EventLogListener.expectOnlyCreatedEvent(EventLogListener.java:105)
    at org.infinispan.client.hotrod.event.ClientClusterEventsTest$2.call(ClientClusterEventsTest.java:91)
    at org.infinispan.client.hotrod.test.HotRodClientTestingUtil.withClientListener(HotRodClientTestingUtil.java:147)
    at org.infinispan.client.hotrod.event.ClientClusterEventsTest.testFilteringInCluster(ClientClusterEventsTest.java:83)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:84)
    at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
    at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
    at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
    at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
    at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
    at org.testng.TestRunner.privateRun(TestRunner.java:767)
    at org.testng.TestRunner.run(TestRunner.java:617)
    at org.testng.SuiteRunner.runTest(SuiteRunner.java:348)
    at org.testng.SuiteRunner.access$000(SuiteRunner.java:38)
    at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:382)
    at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)