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Posted to dev@giraph.apache.org by "Craig Muchinsky (JIRA)" <ji...@apache.org> on 2014/03/31 21:26:15 UTC
[jira] [Updated] (GIRAPH-884) ByteArrayEdges.iterator() throws NPE
when no edges are present
[ https://issues.apache.org/jira/browse/GIRAPH-884?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Craig Muchinsky updated GIRAPH-884:
-----------------------------------
Attachment: GIRAPH-884.patch
> ByteArrayEdges.iterator() throws NPE when no edges are present
> --------------------------------------------------------------
>
> Key: GIRAPH-884
> URL: https://issues.apache.org/jira/browse/GIRAPH-884
> Project: Giraph
> Issue Type: Bug
> Reporter: Craig Muchinsky
> Fix For: 1.1.0
>
> Attachments: GIRAPH-884.patch
>
>
> The ByteArrayEdges.iterator() method throws the following NPE when no edges are present:
> 2014-03-31 14:44:46,273 ERROR org.apache.giraph.utils.LogStacktraceCallable: Execution of callable failed
> java.lang.NullPointerException
> at java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:120)
> at org.apache.giraph.utils.ExtendedByteArrayDataInput.<init>(ExtendedByteArrayDataInput.java:50)
> at org.apache.giraph.conf.ImmutableClassesGiraphConfiguration.createExtendedDataInput(ImmutableClassesGiraphConfiguration.java:1009)
> at org.apache.giraph.edge.ByteArrayEdges$ByteArrayEdgeIterator.<init>(ByteArrayEdges.java:141)
> at org.apache.giraph.edge.ByteArrayEdges$ByteArrayEdgeIterator.<init>(ByteArrayEdges.java:138)
> at org.apache.giraph.edge.ByteArrayEdges.iterator(ByteArrayEdges.java:167)
> Simply checking the edgeCount before constructing a new ByteArrayEdgeIterator solves the problem.
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