[infinispan-issues] [JBoss JIRA] (ISPN-9077) NullPointerException when trying to recover cache

[Johno Crawford (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-9077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13561340#comment-13561340 ] 

Johno Crawford commented on ISPN-9077:
--------------------------------------

org.infinispan.partitionhandling.impl.PreferAvailabilityStrategy#RESPONSE_COMPARATOR

int topologyId = Integer.compare(t1.getTopologyId(), t2.getTopologyId());

null CacheTopology?

> NullPointerException when trying to recover cache
> -------------------------------------------------
>
>                 Key: ISPN-9077
>                 URL: https://issues.jboss.org/browse/ISPN-9077
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 9.2.0.Final
>            Reporter: Johno Crawford
>
> {code:java}
> 2018-04-13 08:34:35,065 ERROR [transport-thread-x-service-2-p4-t20] (org.infinispan.topology.ClusterCacheStatus) ISPN000228: Failed to recover cache xx state after the current node became the coordinator
> java.lang.NullPointerException: null
> 	at org.infinispan.partitionhandling.impl.PreferAvailabilityStrategy.lambda$static$0(PreferAvailabilityStrategy.java:33) ~[infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at java.util.TimSort.countRunAndMakeAscending(TimSort.java:360) ~[?:1.8.0_144]
> 	at java.util.TimSort.sort(TimSort.java:220) ~[?:1.8.0_144]
> 	at java.util.Arrays.sort(Arrays.java:1512) ~[?:1.8.0_144]
> 	at java.util.stream.SortedOps$SizedRefSortingSink.end(SortedOps.java:348) ~[?:1.8.0_144]
> 	at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482) ~[?:1.8.0_144]
> 	at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[?:1.8.0_144]
> 	at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708) ~[?:1.8.0_144]
> 	at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[?:1.8.0_144]
> 	at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499) ~[?:1.8.0_144]
> 	at org.infinispan.partitionhandling.impl.PreferAvailabilityStrategy.onPartitionMerge(PreferAvailabilityStrategy.java:120) ~[infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at org.infinispan.topology.ClusterCacheStatus.doMergePartitions(ClusterCacheStatus.java:597) ~[infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at org.infinispan.topology.ClusterTopologyManagerImpl.lambda$recoverClusterStatus$6(ClusterTopologyManagerImpl.java:519) ~[infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at org.infinispan.executors.LimitedExecutor.runTasks(LimitedExecutor.java:144) [infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at org.infinispan.executors.LimitedExecutor.access$100(LimitedExecutor.java:33) [infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at org.infinispan.executors.LimitedExecutor$Runner.run(LimitedExecutor.java:174) [infinispan-core-9.2.0.Final.jar:9.2.0.Final]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_144]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_144]
> 	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_144]
> {code}



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