CI failure: SharedConfigurationUsingDirDUnitTest tests are flaky

com.gemstone.gemfire.test.dunit.RMIException: While invoking com.gemstone.gemfire.test.dunit.NamedRunnable.run in VM 1 running on Host cc2-ub.gemstone.com with 4 VMs
	at com.gemstone.gemfire.test.dunit.VM.invoke(VM.java:439)
	at com.gemstone.gemfire.test.dunit.VM.invoke(VM.java:381)
	at com.gemstone.gemfire.test.dunit.VM.invoke(VM.java:303)
	at com.gemstone.gemfire.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.startLocator(SharedConfigurationUsingDirDUnitTest.java:266)
	at com.gemstone.gemfire.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.updateClusterConfigDirWithTwoLocatorsNoRollingServerRestart(SharedConfigurationUsingDirDUnitTest.java:122)
	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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:105)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:56)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:64)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:50)
	at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.messaging.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.messaging.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:106)
	at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.messaging.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.messaging.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:360)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
	at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.net.BindException: Failed to create server socket on  null[23,762]
	at com.gemstone.gemfire.internal.SocketCreator.createServerSocket(SocketCreator.java:846)
	at com.gemstone.gemfire.internal.SocketCreator.createServerSocket(SocketCreator.java:806)
	at com.gemstone.gemfire.internal.SocketCreator.createServerSocket(SocketCreator.java:768)
	at com.gemstone.gemfire.distributed.internal.tcpserver.TcpServer.startServerThread(TcpServer.java:193)
	at com.gemstone.gemfire.distributed.internal.tcpserver.TcpServer.start(TcpServer.java:187)
	at com.gemstone.gemfire.distributed.internal.InternalLocator.startTcpServer(InternalLocator.java:620)
	at com.gemstone.gemfire.distributed.internal.InternalLocator.startPeerLocation(InternalLocator.java:673)
	at com.gemstone.gemfire.distributed.internal.InternalLocator.startLocator(InternalLocator.java:395)
	at com.gemstone.gemfire.distributed.internal.InternalLocator.startLocator(InternalLocator.java:328)
	at com.gemstone.gemfire.distributed.Locator.startLocator(Locator.java:339)
	at com.gemstone.gemfire.distributed.Locator.startLocatorAndDS(Locator.java:171)
	at com.gemstone.gemfire.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.lambda$startLocator$e22b6e8a$1(SharedConfigurationUsingDirDUnitTest.java:280)
	at com.gemstone.gemfire.test.dunit.NamedRunnable.run(NamedRunnable.java:33)
	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 hydra.MethExecutor.executeObject(MethExecutor.java:268)
	at com.gemstone.gemfire.test.dunit.standalone.RemoteDUnitVM.executeMethodOnObject(RemoteDUnitVM.java:83)
	at sun.reflect.GeneratedMethodAccessor139.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$95(TCPTransport.java:683)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
	... 3 more
Caused by: java.net.BindException: Address already in use
	at java.net.PlainSocketImpl.socketBind(Native Method)
	at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:387)
	at java.net.ServerSocket.bind(ServerSocket.java:375)
	at com.gemstone.gemfire.internal.SocketCreator.createServerSocket(SocketCreator.java:843)
	... 34 more

org.apache.geode.test.dunit.RMIException: While invoking org.apache.geode.test.dunit.NamedRunnable.run in VM 3 running on Host cc1-co.gemstone.com with 4 VMs
	at org.apache.geode.test.dunit.VM.invoke(VM.java:389)
	at org.apache.geode.test.dunit.VM.invoke(VM.java:355)
	at org.apache.geode.test.dunit.VM.invoke(VM.java:280)
	at org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.basicClusterConfigDirWithTwoLocators(SharedConfigurationUsingDirDUnitTest.java:108)
	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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.runTestClass(JUnitTestClassExecuter.java:114)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassExecuter.execute(JUnitTestClassExecuter.java:57)
	at org.gradle.api.internal.tasks.testing.junit.JUnitTestClassProcessor.processTestClass(JUnitTestClassProcessor.java:66)
	at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.processTestClass(SuiteTestClassProcessor.java:51)
	at sun.reflect.GeneratedMethodAccessor300.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:32)
	at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:93)
	at com.sun.proxy.$Proxy2.processTestClass(Unknown Source)
	at org.gradle.api.internal.tasks.testing.worker.TestWorker.processTestClass(TestWorker.java:109)
	at sun.reflect.GeneratedMethodAccessor299.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:35)
	at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
	at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:377)
	at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:54)
	at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:40)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)
Caused by: com.jayway.awaitility.core.ConditionTimeoutException: Condition with lambda expression in org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest was not fulfilled within 15 seconds.
	at com.jayway.awaitility.core.ConditionAwaiter.await(ConditionAwaiter.java:122)
	at com.jayway.awaitility.core.CallableCondition.await(CallableCondition.java:79)
	at com.jayway.awaitility.core.CallableCondition.await(CallableCondition.java:27)
	at com.jayway.awaitility.core.ConditionFactory.until(ConditionFactory.java:764)
	at com.jayway.awaitility.core.ConditionFactory.until(ConditionFactory.java:741)
	at org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.lambda$basicClusterConfigDirWithTwoLocators$bb17a952$1(SharedConfigurationUsingDirDUnitTest.java:109)
	at org.apache.geode.test.dunit.NamedRunnable.run(NamedRunnable.java:33)
	at sun.reflect.GeneratedMethodAccessor51.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at hydra.MethExecutor.executeObject(MethExecutor.java:268)
	at org.apache.geode.test.dunit.standalone.RemoteDUnitVM.executeMethodOnObject(RemoteDUnitVM.java:82)
	at sun.reflect.GeneratedMethodAccessor48.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:497)
	at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:323)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$95(TCPTransport.java:683)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
	... 3 more
Previously run tests: [ConfigCommandsDUnitTest, DiskStoreCommandsDUnitTest, GemfireDataCommandsDUnitTest, IndexCommandsDUnitTest, MiscellaneousCommandsDUnitTest, MiscellaneousCommandsExportLogsPart1DUnitTest, MiscellaneousCommandsExportLogsPart4DUnitTest, QueueCommandsDUnitTest, ShowMetricsDUnitTest, SharedConfigurationDUnitTest, SharedConfigurationUsingDirDUnitTest]

org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest > updateClusterConfigDirWithTwoLocatorsAndRollingServerRestart FAILED
org.apache.geode.test.dunit.RMIException: While invoking org.apache.geode.test.dunit.NamedRunnable.run in VM 2 running on Host a9e7f8bc8ba0 with 4 VMs
	at org.apache.geode.test.dunit.VM.invoke(VM.java:389)
	at org.apache.geode.test.dunit.VM.invoke(VM.java:355)
	at org.apache.geode.test.dunit.VM.invoke(VM.java:280)
	at org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.updateClusterConfigDirWithTwoLocatorsAndRollingServerRestart(SharedConfigurationUsingDirDUnitTest.java:208)
Caused by:
com.jayway.awaitility.core.ConditionTimeoutException: Condition with lambda expression in org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest was not fulfilled within 15 seconds.
	at com.jayway.awaitility.core.ConditionAwaiter.await(ConditionAwaiter.java:122)
	at com.jayway.awaitility.core.CallableCondition.await(CallableCondition.java:79)
	at com.jayway.awaitility.core.CallableCondition.await(CallableCondition.java:27)
	at com.jayway.awaitility.core.ConditionFactory.until(ConditionFactory.java:764)
	at com.jayway.awaitility.core.ConditionFactory.until(ConditionFactory.java:741)
	at org.apache.geode.management.internal.configuration.SharedConfigurationUsingDirDUnitTest.lambda$updateClusterConfigDirWithTwoLocatorsAndRollingServerRestart$bb17a952$2(SharedConfigurationUsingDirDUnitTest.java:209)