Bill Burcham created GEODE-6747: ----------------------------------- Summary: GMSJoinLeaveJUnitTest fails intermittently, possibly due to incorrect use of Mockito spy from multiple threads Key: GEODE-6747 URL: https://issues.apache.org/jira/browse/GEODE-6747 Project: Geode Issue Type: Bug Components: membership Reporter: Bill Burcham
{noformat} org.apache.geode.distributed.internal.membership.gms.membership.GMSJoinLeaveJUnitTest > testRemoveMessageForRogueCausesImmediateRemovalMessageToRogue FAILED org.mockito.exceptions.misusing.WrongTypeOfReturnValue: Messenger$MockitoMock$1405677960 cannot be returned by getCancelCriterion() getCancelCriterion() should return Stopper *** If you're unsure why you're getting above error read on. Due to the nature of the syntax above problem might occur because: 1. This exception *might* occur in wrongly written multi-threaded tests. Please refer to Mockito FAQ on limitations of concurrency testing. 2. A spy is stubbed using when(spy.foo()).then() syntax. It is safer to stub spies - - with doReturn|Throw() family of methods. More in javadocs for Mockito.spy() method. at org.apache.geode.distributed.internal.membership.gms.membership.GMSJoinLeaveJUnitTest.prepareAndInstallView(GMSJoinLeaveJUnitTest.java:347) at org.apache.geode.distributed.internal.membership.gms.membership.GMSJoinLeaveJUnitTest.testRemoveMessageForRogueCausesImmediateRemovalMessageToRogue(GMSJoinLeaveJUnitTest.java:599) {noformat} ^ lookie right there. I wonder if our test is accessing Mockito spy functionality (incorrectly) from multiple threads?!? Concourse build: [https://concourse.apachegeode-ci.info/teams/main/pipelines/apache-develop-main/jobs/IntegrationTestOpenJDK11/builds/691] …on this commit: ddef7b7418fb21526b144f91cd4896a016a05e3c Previous build, on this commit, passed: d315756f958e91875bbe79179de1ed37141502b6 Next build, on this commit, passed: a716be9262a928871c0cd61480ed3ac5051ad429 So it's obvious that this is a brand new bug. I ran the test about 25 times in IntelliJ with no failures. So it appears to be intermittent. -- This message was sent by Atlassian JIRA (v7.6.3#76005)