[FALCON-429] Falcon CLI entity list command throws NPE stack trace in case of no entities

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.5
• Assignee: Satish Mittal
• Reporter: Satish Mittal
• Created: 05/May/14 10:13
• Updated: 06/May/14 18:54
• Resolved: 06/May/14 18:54

Description

When 'falcon entity -list' command is run in a cluster that doesn't have any entity of a particular type, it throws following stack trace:

satish@dev2:~/install/falcon-prism$ bin/falcon entity -type process -list
java.lang.NullPointerException
	at org.apache.falcon.cli.FalconCLI.entityCommand(FalconCLI.java:350)
	at org.apache.falcon.cli.FalconCLI.run(FalconCLI.java:169)
	at org.apache.falcon.cli.FalconCLI.main(FalconCLI.java:119)
null

Typically this error will show up in an empty cluster where entities of a type are yet to be submitted.