[YARN-9915] Fix FindBug issue in QueueMetrics

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.0, 3.2.2, 3.1.4, 2.10.1
• Assignee: Prabhu Joseph
• Reporter: Prabhu Joseph
• Created: 18/Oct/19 17:08
• Updated: 09/Dec/19 20:04
• Resolved: 21/Oct/19 21:26

Description

Below FindBug issue appears in the trunk build

org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics.registerCustomResources() invokes inefficient new Long(long) constructor; use Long.valueOf(long) instead
Bug type DM_NUMBER_CTOR (click for details) 
In class org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics
In method org.apache.hadoop.yarn.server.resourcemanager.scheduler.QueueMetrics.registerCustomResources()
Called method new Long(long)
Should call Long.valueOf(long) instead
At QueueMetrics.java:[line 468]