Merge policy tests random failures with ArrayIndexOutOfBoundsException ---------------------------------------------------------------------- Key: ISPN-8639 URL: https://issues.jboss.org/browse/ISPN-8639 Project: Infinispan Issue Type: Bug Components: Test Suite - Core Affects Versions: 9.2.0.Beta2 Reporter: Dan Berindei Assignee: Dan Berindei Labels: testsuite_stability Fix For: 9.2.0.CR1 {{BaseMergePolicyTest.getCacheFromPreferredPartition()}} reads the cache status of all the running caches, including the {{CONFIG}} cache, but assumes a 1-to-1 mapping between the responses list and the input caches (the default cache on each node). Depending on how the responses are ordered, it may try to return a cache that doesn't exist in the input array: {noformat} 10:47:41,378 ERROR (testng-Test:[]) [TestSuiteProgress] Test failed: org.infinispan.conflict.impl.MergePolicyRemoveAllTest.testPartitionMergePolicy[DIST_SYNC, 5N] java.lang.ArrayIndexOutOfBoundsException: 8 at org.infinispan.conflict.impl.BaseMergePolicyTest.getCacheFromPreferredPartition(BaseMergePolicyTest.java:190) ~[test-classes/:?] at org.infinispan.conflict.impl.BaseMergePolicyTest.getCacheFromPreferredPartition(BaseMergePolicyTest.java:153) ~[test-classes/:?] at org.infinispan.conflict.impl.BaseMergePolicyTest.testPartitionMergePolicy(BaseMergePolicyTest.java:124) ~[test-classes/:?] {noformat} {noformat} 16:57:12,012 ERROR (testng-Test:[]) [TestSuiteProgress] Test failed: org.infinispan.conflict.impl.MergePolicyCustomTest.testPartitionMergePolicy[DIST_SYNC, 4N] java.lang.ArrayIndexOutOfBoundsException: 6 at org.infinispan.conflict.impl.BaseMergePolicyTest.getCacheFromPreferredPartition(BaseMergePolicyTest.java:190) ~[test-classes/:?] at org.infinispan.conflict.impl.BaseMergePolicyTest.getCacheFromPreferredPartition(BaseMergePolicyTest.java:153) ~[test-classes/:?] at org.infinispan.conflict.impl.BaseMergePolicyTest.testPartitionMergePolicy(BaseMergePolicyTest.java:124) ~[test-classes/:?] {noformat}