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Posted to dev@zookeeper.apache.org by "Patrick Hunt (JIRA)" <ji...@apache.org> on 2008/07/16 18:22:31 UTC

[jira] Created: (ZOOKEEPER-77) NPE in jute toCSVString code

NPE in jute toCSVString code
----------------------------

                 Key: ZOOKEEPER-77
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-77
             Project: Zookeeper
          Issue Type: Bug
          Components: jute
            Reporter: Patrick Hunt
            Assignee: Patrick Hunt
             Fix For: 3.0.0


As reported by user:

From: Martin Schaaf <ms...@101tec.com>
List-Id: <zookeeper-user.lists.sourceforge.net>

FYI today I found this NPE in the logs. After this Exception an Error  
event was thrown.

java.lang.NullPointerException
	at com.yahoo.jute.Utils.toCSVString(Utils.java:128)
	at com.yahoo.jute.CsvOutputArchive.writeString(CsvOutputArchive.java: 
95)
	at com.yahoo.zookeeper.proto.WatcherEvent.toString(WatcherEvent.java: 
60)
	at net.sf.katta.zk.ZKClient.process(ZKClient.java:404)
	at com.yahoo.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:264)


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[jira] Updated: (ZOOKEEPER-77) NPE in jute toCSVString code

Posted by "Patrick Hunt (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/ZOOKEEPER-77?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Hunt updated ZOOKEEPER-77:
----------------------------------

    Fix Version/s:     (was: 3.0.0)
         Assignee:     (was: Benjamin Reed)

> NPE in jute toCSVString code
> ----------------------------
>
>                 Key: ZOOKEEPER-77
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-77
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: jute
>            Reporter: Patrick Hunt
>
> As reported by user:
> From: Martin Schaaf <ms...@101tec.com>
> List-Id: <zookeeper-user.lists.sourceforge.net>
> FYI today I found this NPE in the logs. After this Exception an Error  
> event was thrown.
> java.lang.NullPointerException
> 	at com.yahoo.jute.Utils.toCSVString(Utils.java:128)
> 	at com.yahoo.jute.CsvOutputArchive.writeString(CsvOutputArchive.java: 
> 95)
> 	at com.yahoo.zookeeper.proto.WatcherEvent.toString(WatcherEvent.java: 
> 60)
> 	at net.sf.katta.zk.ZKClient.process(ZKClient.java:404)
> 	at com.yahoo.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:264)

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[jira] Assigned: (ZOOKEEPER-77) NPE in jute toCSVString code

Posted by "Patrick Hunt (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/ZOOKEEPER-77?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Hunt reassigned ZOOKEEPER-77:
-------------------------------------

    Assignee: Benjamin Reed  (was: Patrick Hunt)

Assigning to Ben as this seems related to ZOOKEEPER-16

> NPE in jute toCSVString code
> ----------------------------
>
>                 Key: ZOOKEEPER-77
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-77
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: jute
>            Reporter: Patrick Hunt
>            Assignee: Benjamin Reed
>             Fix For: 3.0.0
>
>
> As reported by user:
> From: Martin Schaaf <ms...@101tec.com>
> List-Id: <zookeeper-user.lists.sourceforge.net>
> FYI today I found this NPE in the logs. After this Exception an Error  
> event was thrown.
> java.lang.NullPointerException
> 	at com.yahoo.jute.Utils.toCSVString(Utils.java:128)
> 	at com.yahoo.jute.CsvOutputArchive.writeString(CsvOutputArchive.java: 
> 95)
> 	at com.yahoo.zookeeper.proto.WatcherEvent.toString(WatcherEvent.java: 
> 60)
> 	at net.sf.katta.zk.ZKClient.process(ZKClient.java:404)
> 	at com.yahoo.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:264)

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[jira] Commented: (ZOOKEEPER-77) NPE in jute toCSVString code

Posted by "Martin Schaaf (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/ZOOKEEPER-77?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12615891#action_12615891 ] 

Martin Schaaf commented on ZOOKEEPER-77:
----------------------------------------

I can confirm that the reason is a null path. if I set the path to a default string in case it is null the NPE is gone.

> NPE in jute toCSVString code
> ----------------------------
>
>                 Key: ZOOKEEPER-77
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-77
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: jute
>            Reporter: Patrick Hunt
>            Assignee: Benjamin Reed
>             Fix For: 3.0.0
>
>
> As reported by user:
> From: Martin Schaaf <ms...@101tec.com>
> List-Id: <zookeeper-user.lists.sourceforge.net>
> FYI today I found this NPE in the logs. After this Exception an Error  
> event was thrown.
> java.lang.NullPointerException
> 	at com.yahoo.jute.Utils.toCSVString(Utils.java:128)
> 	at com.yahoo.jute.CsvOutputArchive.writeString(CsvOutputArchive.java: 
> 95)
> 	at com.yahoo.zookeeper.proto.WatcherEvent.toString(WatcherEvent.java: 
> 60)
> 	at net.sf.katta.zk.ZKClient.process(ZKClient.java:404)
> 	at com.yahoo.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:264)

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[jira] Resolved: (ZOOKEEPER-77) NPE in jute toCSVString code

Posted by "Patrick Hunt (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/ZOOKEEPER-77?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Patrick Hunt resolved ZOOKEEPER-77.
-----------------------------------

    Resolution: Duplicate

Dup of ZOOKEEPER-16 - I've updated 16 to make sure that as part of path checking we verify that the path is non-null.

> NPE in jute toCSVString code
> ----------------------------
>
>                 Key: ZOOKEEPER-77
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-77
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: jute
>            Reporter: Patrick Hunt
>
> As reported by user:
> From: Martin Schaaf <ms...@101tec.com>
> List-Id: <zookeeper-user.lists.sourceforge.net>
> FYI today I found this NPE in the logs. After this Exception an Error  
> event was thrown.
> java.lang.NullPointerException
> 	at com.yahoo.jute.Utils.toCSVString(Utils.java:128)
> 	at com.yahoo.jute.CsvOutputArchive.writeString(CsvOutputArchive.java: 
> 95)
> 	at com.yahoo.zookeeper.proto.WatcherEvent.toString(WatcherEvent.java: 
> 60)
> 	at net.sf.katta.zk.ZKClient.process(ZKClient.java:404)
> 	at com.yahoo.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:264)

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[jira] Commented: (ZOOKEEPER-77) NPE in jute toCSVString code

Posted by "Patrick Hunt (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/ZOOKEEPER-77?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12614007#action_12614007 ] 

Patrick Hunt commented on ZOOKEEPER-77:
---------------------------------------

According to the stack trace the line causing the problem is:

    a_.writeString(path,"path");

in watcher event.

Should it ever be the case that the path can be null?

We should look at the static code analysis output to see if this is flagged.


> NPE in jute toCSVString code
> ----------------------------
>
>                 Key: ZOOKEEPER-77
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-77
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: jute
>            Reporter: Patrick Hunt
>            Assignee: Patrick Hunt
>             Fix For: 3.0.0
>
>
> As reported by user:
> From: Martin Schaaf <ms...@101tec.com>
> List-Id: <zookeeper-user.lists.sourceforge.net>
> FYI today I found this NPE in the logs. After this Exception an Error  
> event was thrown.
> java.lang.NullPointerException
> 	at com.yahoo.jute.Utils.toCSVString(Utils.java:128)
> 	at com.yahoo.jute.CsvOutputArchive.writeString(CsvOutputArchive.java: 
> 95)
> 	at com.yahoo.zookeeper.proto.WatcherEvent.toString(WatcherEvent.java: 
> 60)
> 	at net.sf.katta.zk.ZKClient.process(ZKClient.java:404)
> 	at com.yahoo.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:264)

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