[HBASE-10134] Fix findbug warning in VisibilityController

• Type: Task
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.98.0, 0.99.0
• Hadoop Flags: Reviewed
• Assignee: Ted Yu
• Reporter: Ted Yu
• Created: 11/Dec/13 23:35
• Updated: 06/Apr/18 17:51
• Resolved: 19/Dec/13 07:09

Description

There're 3 findbugs warnings for VisibilityController:

RCN	Nullcheck of user at line 959 of value previously dereferenced in org.apache.hadoop.hbase.security.visibility.VisibilityController.getSystemAndSuperUsers()

TEST	Unknown bug pattern VO_VOLATILE_INCREMENT in org.apache.hadoop.hbase.security.visibility.VisibilityController.addLabels(RpcController, VisibilityLabelsProtos$VisibilityLabelsRequest, RpcCallback)

IS	Inconsistent synchronization of org.apache.hadoop.hbase.security.visibility.VisibilityController.regionEnv; locked 62% of time