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https://issues.apache.org/jira/browse/IGNITE-5410?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ivan Veselovsky updated IGNITE-5410:
------------------------------------
    Description: 
Writing an array of zero length causes the following AssertionError:

{code}
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)
...
{code}

Suggested fix is to change the assertion to 
{code} assert size >= 0 : size; {code}

  was:
Writing an array of zero length causes the following AssertionError:

{code}
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)
...
{code}

Suggested fix is to change the assertion to 
{code} assert size > 0 : size; {code}


> Invocation of HadoopDataOutStream#write(byte[], int, int) with zero len 
> сauses an AssertionError.
> -------------------------------------------------------------------------------------------------
>
>                 Key: IGNITE-5410
>                 URL: https://issues.apache.org/jira/browse/IGNITE-5410
>             Project: Ignite
>          Issue Type: Bug
>          Components: hadoop
>    Affects Versions: 2.1
>            Reporter: Ivan Veselovsky
>            Assignee: Ivan Veselovsky
>            Priority: Minor
>
> Writing an array of zero length causes the following AssertionError:
> {code}
> 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)
> ...
> {code}
> Suggested fix is to change the assertion to 
> {code} assert size >= 0 : size; {code}



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