I'm currently looking into potential flakiness of GemFireCacheImplCloseTest. I'll fix this asap. Thanks!
org.apache.geode.internal.cache.GemFireCacheImplCloseTest > close_blocksUntilFirstCallToCloseCompletes FAILED org.junit.ComparisonFailure: [ThreadId1=47 and threadId2=49] expected:<4[7]L> but was:<4[9]L> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at org.apache.geode.internal.cache.GemFireCacheImplCloseTest.close_blocksUntilFirstCallToCloseCompletes(GemFireCacheImplCloseTest.java:225)