[HDFS-1550] NPE when listing a file with no location

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 0.22.0
• Fix Version/s: 0.22.0
• Component/s: hdfs-client
• Hadoop Flags: Reviewed
• Assignee: Hairong Kuang
• Reporter: Hairong Kuang
• Created: 21/Dec/10 19:13
• Updated: 12/Dec/11 06:19
• Resolved: 03/Jan/11 22:27

Description

Lines listed below will caused a NullPointerException in DFSUtil.locatedBlocks2Locations (line 208) because EMPTY_BLOCK_LOCS will return null when calling blocks.getLocatedBlocks()

   /** a default LocatedBlocks object, its content should not be changed */
   private final static LocatedBlocks EMPTY_BLOCK_LOCS = new LocatedBlocks();