[jira] [Assigned] (MAPREDUCE-5748) Potential null pointer deference in ShuffleHandler#Shuffle#messageReceived()

2015-05-08 Thread Varun Saxena (JIRA) 

 [ 
https://issues.apache.org/jira/browse/MAPREDUCE-5748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Varun Saxena reassigned MAPREDUCE-5748:
---

Assignee: Varun Saxena

 Potential null pointer deference in ShuffleHandler#Shuffle#messageReceived()
 

 Key: MAPREDUCE-5748
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5748
 Project: Hadoop Map/Reduce
  Issue Type: Bug
Reporter: Ted Yu
Assignee: Varun Saxena
Priority: Minor
  Labels: BB2015-05-TBR
 Attachments: 
 0001-MAPREDUCE-5748-Potential-null-pointer-deference-in-S.patch


 Starting around line 510:
 {code}
   ChannelFuture lastMap = null;
   for (String mapId : mapIds) {
 ...
   }
   lastMap.addListener(metrics);
   lastMap.addListener(ChannelFutureListener.CLOSE);
 {code}
 If mapIds is empty, lastMap would remain null, leading to NPE in 
 addListener() call.



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[jira] [Assigned] (MAPREDUCE-5748) Potential null pointer deference in ShuffleHandler#Shuffle#messageReceived()

2014-03-16 Thread Hussein Baghdadi (JIRA) 

 [ 
https://issues.apache.org/jira/browse/MAPREDUCE-5748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Hussein Baghdadi reassigned MAPREDUCE-5748:
---

Assignee: Hussein Baghdadi

 Potential null pointer deference in ShuffleHandler#Shuffle#messageReceived()
 

 Key: MAPREDUCE-5748
 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5748
 Project: Hadoop Map/Reduce
  Issue Type: Bug
Reporter: Ted Yu
Assignee: Hussein Baghdadi
Priority: Minor

 Starting around line 510:
 {code}
   ChannelFuture lastMap = null;
   for (String mapId : mapIds) {
 ...
   }
   lastMap.addListener(metrics);
   lastMap.addListener(ChannelFutureListener.CLOSE);
 {code}
 If mapIds is empty, lastMap would remain null, leading to NPE in 
 addListener() call.



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