I've just had similar (or probably same) issue in ComponentsTest. TestCleanup class was using thread-unsafe LinkedList under the covers. So some concurrency tests had issues, as they updated LinkedList from more threads and then this NPE can happen when iterating through LinkedList: java.lang.NullPointerException at java.util.LinkedList$ListItr.next(LinkedList.java:893) at org.keycloak.testsuite.util.TestCleanup.executeCleanup(TestCleanup.java:143) at org.keycloak.testsuite.AbstractKeycloakTest.afterAbstractKeycloakTest(AbstractKeycloakTest.java:178) When this happened, I saw the other test methods fail with empty NPE like for you. I've fixed it in latest master by making the class TestCleanup thread-safe. Hopefully this will fix your issue too. Sorry for troubles as thread-unsafe TestCleanup was my fault :( BTV. Some concurrency tests like BruteForceTest or ComponentsTest still have issues because of H2 locks. I can sometimes simulate on my laptop and seeing that they sometime fails on travis too. But that's separate issue and hopefully it's just specific to H2. Marek On 16/06/17 23:36, Bill Burke wrote: > I performed the following in integration-arquillian testsuite > > mvn -Dkeycloak.logging.level=debug clean install > out.txt 2>&1 > > My test is failing in AbstractKeycloakTest.afterAbstractKeycloakTest > while running TestCleanup loop. I'm getting a NullPointerException but > I can't seem to get the testsuite to output the stack trace. I do see > info level logs from this class, but no stack trace. Even if I add a > exception.printStackTrace(). The stack trace is empty. > > Any ideas? This popped up before but just magically disappeared. Now > its back. The test failure only comes up in a full maven build. Can't > reproduce in IDE. > > Thanks, > > Bill > > > _______________________________________________ > keycloak-dev mailing list > keycloak-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/keycloak-dev _______________________________________________ keycloak-dev mailing list keycloak-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-dev

The H2 issues should hopefully be fixed by https://github.com/keycloak/keycloak/pull/4246 --Hynek On Wed, Jun 21, 2017 at 10:42 AM, Marek Posolda <mposolda(a)redhat.com&gt; wrote: > I've just had similar (or probably same) issue in ComponentsTest. > > TestCleanup class was using thread-unsafe LinkedList under the covers. > So some concurrency tests had issues, as they updated LinkedList from > more threads and then this NPE can happen when iterating through LinkedList: > > java.lang.NullPointerException > at java.util.LinkedList$ListItr.next(LinkedList.java:893) > at > org.keycloak.testsuite.util.TestCleanup.executeCleanup( TestCleanup.java:143) > at > org.keycloak.testsuite.AbstractKeycloakTest.afterAbstractKeycloakTest( AbstractKeycloakTest.java:178) > > When this happened, I saw the other test methods fail with empty NPE > like for you. > > I've fixed it in latest master by making the class TestCleanup > thread-safe. Hopefully this will fix your issue too. Sorry for troubles > as thread-unsafe TestCleanup was my fault :( > > BTV. Some concurrency tests like BruteForceTest or ComponentsTest still > have issues because of H2 locks. I can sometimes simulate on my laptop > and seeing that they sometime fails on travis too. But that's separate > issue and hopefully it's just specific to H2. > > Marek > > > On 16/06/17 23:36, Bill Burke wrote: >> I performed the following in integration-arquillian testsuite >> >> mvn -Dkeycloak.logging.level=debug clean install > out.txt 2>&1 >> >> My test is failing in AbstractKeycloakTest.afterAbstractKeycloakTest >> while running TestCleanup loop. I'm getting a NullPointerException but >> I can't seem to get the testsuite to output the stack trace. I do see >> info level logs from this class, but no stack trace. Even if I add a >> exception.printStackTrace(). The stack trace is empty. >> >> Any ideas? This popped up before but just magically disappeared. Now >> its back. The test failure only comes up in a full maven build. Can't >> reproduce in IDE. >> >> Thanks, >> >> Bill >> >> >> _______________________________________________ >> keycloak-dev mailing list >> keycloak-dev(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/keycloak-dev > > > _______________________________________________ > keycloak-dev mailing list > keycloak-dev(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/keycloak-dev -- --Hynek _______________________________________________ keycloak-dev mailing list keycloak-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/keycloak-dev