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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-3453) ipc.Client.close() throws NullPointerException
Date Wed, 28 May 2008 17:25:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3453?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12600540#action_12600540
] 

Tsz Wo (Nicholas), SZE commented on HADOOP-3453:
------------------------------------------------

For the first one, I did some changes in Client.java trying to fix the bug.  So the line numbers
are different from the original source.  Steve, you are right: the cause of two cases are
probably the same.

> ipc.Client.close() throws NullPointerException
> ----------------------------------------------
>
>                 Key: HADOOP-3453
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3453
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: ipc
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Hairong Kuang
>
> There are two possible cases that Client.close() throws NullPointerException
> - Exception in thread "IPC Client (47) connection to localhost/127.0.0.1:3070 from tsz"
java.lang.NullPointerException
>     at org.apache.hadoop.ipc.Client$Connection.close(Client.java:521)
>     at org.apache.hadoop.ipc.Client$Connection.run(Client.java:434)
> - Exception in thread "Thread-2" java.lang.NullPointerException
>     at org.apache.hadoop.ipc.Client$Connection.close(Client.java:519)
>     at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:317)
>     at org.apache.hadoop.ipc.Client$Connection.access$1700(Client.java:175)
>     at org.apache.hadoop.ipc.Client.getConnection(Client.java:766)
>     at org.apache.hadoop.ipc.Client.call(Client.java:680)
>     at org.apache.hadoop.ipc.RPC$Invoker.invoke(RPC.java:216)
>     ...

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