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org.ehcache.StateTransitionException: Couldn't acquire cluster-wide maintenance lease>	at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)	at com.terracotta.qa.ehcache.test.MultipleClientsTest.testCRUDOps(MultipleClientsTest.java:172)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)	at org.testng.internal.MethodInvocationHelper$1.runTestMethod(MethodInvocationHelper.java:200)	at org.jboss.byteman.contrib.bmunit.BMNGAbstractRunner.run(BMNGAbstractRunner.java:58)	at org.testng.internal.MethodInvocationHelper.invokeHookable(MethodInvocationHelper.java:212)	at org.testng.internal.Invoker.invokeMethod(Invoker.java:689)	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:882)	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1189)	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:124)	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:108)	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.runSequentially(SuiteRunner.java:343)	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:305)	at org.testng.SuiteRunner.run(SuiteRunner.java:254)	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1224)	at org.testng.TestNG.runSuitesLocally(TestNG.java:1149)	at org.testng.TestNG.run(TestNG.java:1057)	at org.testng.IDEARemoteTestNG.run(IDEARemoteTestNG.java:74)	at org.testng.RemoteTestNGStarter.main(RemoteTestNGStarter.java:121)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:606)	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:144)