[infinispan-issues] [JBoss JIRA] (ISPN-8782) Occasional NPE on PersistentUUIDManagerImpl.mapAddresses

Occasional NPE on PersistentUUIDManagerImpl.mapAddresses -------------------------------------------------------- Key: ISPN-8782 URL: https://issues.jboss.org/browse/ISPN-8782 Project: Infinispan Issue Type: Bug Components: Core Reporter: Sanne Grinovero Assignee: Dan Berindei Fix For: 9.3.0.CR1 When running the testsuite I occasionally see stacktraces such as: 23:47:50,649 FATAL (transport-thread-RetryMechanismTest[null, tx=false]-NodeT-p64820-t5) [PersistentUUIDManagerImpl] Cannot find mapping for address RetryMechanismTest[null, tx=false]-NodeT-51212 java.lang.NullPointerException at org.infinispan.topology.PersistentUUIDManagerImpl.mapAddresses(PersistentUUIDManagerImpl.java:70) at org.infinispan.topology.ClusterCacheStatus.startQueuedRebalance(ClusterCacheStatus.java:824) at org.infinispan.topology.ClusterCacheStatus.queueRebalance(ClusterCacheStatus.java:125) at org.infinispan.partitionhandling.impl.PreferAvailabilityStrategy.onPartitionMerge(PreferAvailabilityStrategy.java:232) at org.infinispan.topology.ClusterCacheStatus.doMergePartitions(ClusterCacheStatus.java:597) at org.infinispan.topology.ClusterTopologyManagerImpl.lambda$recoverClusterStatus$6(ClusterTopologyManagerImpl.java:519) at org.infinispan.executors.LimitedExecutor.runTasks(LimitedExecutor.java:144) at org.infinispan.executors.LimitedExecutor.access$100(LimitedExecutor.java:33) at org.infinispan.executors.LimitedExecutor$Runner.run(LimitedExecutor.java:174) They seem harmless as it seems like the test results aren't affected, but it's still looking quite bad. Would be best if someone had a look.