[IGNITE-5410] Invocation of HadoopDataOutStream#write(byte[], int, int) with zero len сauses an AssertionError.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.1
• Fix Version/s: 2.1
• Component/s: hadoop
• Assignee: Ivan Veselovsky
• Reporter: Ivan Veselovsky
• Created: 05/Jun/17 16:28
• Updated: 06/Jun/17 13:56
• Resolved: 06/Jun/17 13:56

Description

Writing an array of zero length causes the following AssertionError:

java.lang.AssertionError: 0
	at org.apache.ignite.internal.processors.hadoop.shuffle.streams.HadoopOffheapBuffer.move(HadoopOffheapBuffer.java:95)
	at org.apache.ignite.internal.processors.hadoop.shuffle.streams.HadoopDataOutStream.move(HadoopDataOutStream.java:55)
	at org.apache.ignite.internal.processors.hadoop.shuffle.collections.HadoopMultimapBase$AdderBase$1.move(HadoopMultimapBase.java:206)
	at org.apache.ignite.internal.processors.hadoop.shuffle.streams.HadoopDataOutStream.write(HadoopDataOutStream.java:70)
	at org.apache.hadoop.io.BytesWritable.write(BytesWritable.java:187)
...

Suggested fix is to change the assertion to

 assert size >= 0 : size;