Description
ShellBasedUnixGroupsMapping#getGroups does not always return the primary group first. It should do this so that clients who expect it don't get the wrong result. We should also document that the primary group is returned first in the API. Note that JniBasedUnixGroupsMapping does return the primary group first.
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Issue Links
- is related to
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HADOOP-10087 UserGroupInformation.getGroupNames() fails to return primary group first when JniBasedUnixGroupsMappingWithFallback is used
- Closed