[HBASE-1865] 0.20.0 TableInputFormatBase NPE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.20.0
• Fix Version/s: 0.20.1, 0.90.0
• Assignee: Michael Stack
• Reporter: Eric Tschetter
• Created: 24/Sep/09 21:02
• Updated: 20/Nov/15 13:01
• Resolved: 24/Sep/09 23:06

Description

Spot the bug in this code:

public List<InputSplit> getSplits(JobContext context) throws IOException {
byte [][] startKeys = table.getStartKeys();
if (startKeys == null || startKeys.length == 0)

{ throw new IOException("Expecting at least one region."); }

if (table == null)

{ throw new IOException("No table was provided."); }

...
}

Should check if the table is null before calling a method on it.

Admittedly, this isn't the worst bug in the world, it's really just more of a nuisance in that the "No table was provided" message becomes an NPE

This bug is in both

org.apache.hadoop.hbase.mapred.TableInputFormatBase
org.apache.hadoop.hbase.mapreduce.TableInputFormatBase