[ZOOKEEPER-268] tostring on jute generated objects can cause NPE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0, 3.0.1
• Fix Version/s: 3.1.0
• Component/s: java client, server
• Hadoop Flags: Reviewed
• Assignee: Patrick D. Hunt
• Reporter: Patrick D. Hunt
• Created: 07/Jan/09 18:05
• Updated: 13/Feb/09 21:18
• Resolved: 26/Jan/09 19:28

Description

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)