NPE in ConsistentHashV2IntegrationTest.cleanUp

ERROR] Tests run: 3262, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 293.915 s <<< FAILURE! - in TestSuite
[ERROR] cleanUp(org.infinispan.client.hotrod.ConsistentHashV2IntegrationTest)  Time elapsed: 0.062 s  <<< FAILURE!
java.lang.NullPointerException
	at org.infinispan.client.hotrod.ConsistentHashV2IntegrationTest.cleanUp(ConsistentHashV2IntegrationTest.java:102)
	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:498)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:85)
	at org.testng.internal.Invoker.invokeConfigurationMethod(Invoker.java:510)
	at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:211)
	at org.testng.internal.Invoker.invokeConfigurations(Invoker.java:138)
	at org.testng.TestRunner.afterRun(TestRunner.java:1023)
	at org.testng.TestRunner.run(TestRunner.java:628)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:359)
	at org.testng.SuiteRunner.access$000(SuiteRunner.java:39)
	at org.testng.SuiteRunner$SuiteWorker.run(SuiteRunner.java:393)
	at org.testng.internal.thread.ThreadUtil$2.call(ThreadUtil.java:64)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

[INFO] 
[INFO] Results:
[INFO] 
[ERROR] Failures: 
[ERROR]   ConsistentHashV2IntegrationTest.cleanUp:102 NullPointer
[INFO] 
[ERROR] Tests run: 3262, Failures: 1, Errors: 0, Skipped: 0