[keycloak-dev] cluster invalidation tests failing

Every travis build is failing with this: Tests in error: ClientInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds ClientInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds GroupInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds GroupInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds RealmInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds RealmInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds RoleInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds RoleInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds SessionFailoverClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds UserInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds UserInvalidationClusterTest>AbstractClusterTest.beforeClusterTest:122->AbstractClusterTest.logFailoverSetup:60->AbstractClusterTest.getCurrentFailNode:49->AbstractClusterTest.backendNode:85 » IndexOutOfBounds