Mahadev konar commented on ZOOKEEPER-402:

ok this took me a while to figure out, since its a weird corner case. The c 
library as it is supports NULL. So you can do a create of a node with NULL and 
read it back. This will work. But the problem arises when you do a create with 
the java client with data as NULL and read it from the c client. The other way 
round works fine. The problem being that the java code serializes the NULL 
buffer as -1 and the c code does it with serializing as 0 and does not handle 
-1 on deserialization or serialization. We should fix the c recordio to handle 
this. Ill upload a patch soon.

> zookeeper c library segfaults on data for a node in zookeeper being null.
> -------------------------------------------------------------------------
>                 Key: ZOOKEEPER-402
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-402
>             Project: Zookeeper
>          Issue Type: Bug
>    Affects Versions: 3.1.0, 3.1.1
>            Reporter: Mahadev konar
>            Assignee: Mahadev konar
>            Priority: Critical
>             Fix For: 3.2.0
> the zookeeper c client library seg faults on data being null for a zoo node. 

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