[ https://issues.apache.org/jira/browse/HADOOP-16847?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Steve Loughran updated HADOOP-16847: ------------------------------------ Summary: Test TestGroupsCaching fail if HashSet iterates in a different order (was: Test can fail if HashSet iterates in a different order) > Test TestGroupsCaching fail if HashSet iterates in a different order > -------------------------------------------------------------------- > > Key: HADOOP-16847 > URL: https://issues.apache.org/jira/browse/HADOOP-16847 > Project: Hadoop Common > Issue Type: Improvement > Components: test > Affects Versions: 3.2.1 > Reporter: testfixer0 > Assignee: testfixer0 > Priority: Minor > Fix For: 3.3.0, 3.2.2 > > Attachments: HADOOP-16847-000.patch, HADOOP-16847-000.patch, > HADOOP-16874-001.patch > > > The test `testNegativeGroupCaching` can fail if the iteration order of > HashSet changes. In detail, the method `assertEquals` (line 331) compares > `groups.getGroups(user)` with an ArrayList `myGroups`. The method `getGroups` > converts `allGroups` (a HashSet) to a list and it calls iterator in HashSet. > However, the iteration is non-deterministic. > This PR proposes to modify HashSet to LinkedHashSet for a deterministic order. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org