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https://issues.apache.org/jira/browse/ZOOKEEPER-268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12667651#action_12667651
 ] 

Hudson commented on ZOOKEEPER-268:
----------------------------------

Integrated in ZooKeeper-trunk #211 (See 
[http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/211/])
    .  tostring on jute generated objects can cause NPE. (pat via mahadev)


> tostring on jute generated objects can cause NPE
> ------------------------------------------------
>
>                 Key: ZOOKEEPER-268
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-268
>             Project: Zookeeper
>          Issue Type: Bug
>          Components: java client, server
>    Affects Versions: 3.0.0, 3.0.1
>            Reporter: Patrick Hunt
>            Assignee: Patrick Hunt
>             Fix For: 3.1.0
>
>         Attachments: ZOOKEEPER-268.patch
>
>
> Jute still causing problems with tostring operations on generated code, need 
> to review/cleanup the toCSV code
> From user Kevin Burton:
> ---------------------------------------------
> Creating this node with this ACL:
> Created /foo
> setAcl /foo world:anyone:w
> Causes the exception included below.
> It's an infinite loop so it's just called over and over again filling my
> console.
> I'm just doing an exists( path, true ); ... setting a watch still causes the
> problem.
> java.lang.NullPointerException
>         at org.apache.jute.Utils.toCSVBuffer(Utils.java:234)
>         at
> org.apache.jute.CsvOutputArchive.writeBuffer(CsvOutputArchive.java:101)
>         at
> org.apache.zookeeper.proto.GetDataResponse.toString(GetDataResponse.java:48)
>         at java.lang.String.valueOf(String.java:2827)
>         at java.lang.StringBuilder.append(StringBuilder.java:115)
>         at
> org.apache.zookeeper.ClientCnxn$Packet.toString(ClientCnxn.java:230)
>         at java.lang.String.valueOf(String.java:2827)
>         at java.lang.StringBuilder.append(StringBuilder.java:115)
>         at
> org.apache.zookeeper.ClientCnxn$SendThread.readResponse(ClientCnxn.java:586)
>         at
> org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:626)
>         at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:852)
> java.lang.NullPointerException
>         at org.apache.jute.Utils.toCSVBuffer(Utils.java:234)
>         at
> org.apache.jute.CsvOutputArchive.writeBuffer(CsvOutputArchive.java:101)
>         at
> org.apache.zookeeper.proto.GetDataResponse.toString(GetDataResponse.java:48)
>         at java.lang.String.valueOf(String.java:2827)
>         at java.lang.StringBuilder.append(StringBuilder.java:115)
>         at
> org.apache.zookeeper.ClientCnxn$Packet.toString(ClientCnxn.java:230)
>         at java.lang.String.valueOf(String.java:2827)
>         at java.lang.StringBuilder.append(StringBuilder.java:115)
>         at
> org.apache.zookeeper.ClientCnxn$SendThread.readResponse(ClientCnxn.java:586)
>         at
> org.apache.zookeeper.ClientCnxn$SendThread.doIO(ClientCnxn.java:626)
>         at
> org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:852)

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