[jira] [Created] (ZOOKEEPER-2804) Node creation fails with NPE if ACLs are null

[Bhupendra Kumar Jain (JIRA)]

Bhupendra Kumar Jain created ZOOKEEPER-2804:
-----------------------------------------------

             Summary: Node creation fails with NPE if ACLs are null
                 Key: ZOOKEEPER-2804
                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-2804
             Project: ZooKeeper
          Issue Type: Bug
            Reporter: Bhupendra Kumar Jain


If null ACLs are passed then zk node creation fails with NPE
{code}
java.lang.NullPointerException
        at 
org.apache.zookeeper.server.PrepRequestProcessor.removeDuplicates(PrepRequestProcessor.java:1301)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.fixupACL(PrepRequestProcessor.java:1341)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.pRequest2Txn(PrepRequestProcessor.java:519)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcessor.java:1126)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.java:178)
{code}

Below APIs have problem.
{code}
public void create(final String path, byte data[], List<ACL> acl,
            CreateMode createMode, StringCallback cb, Object ctx)

public void create(final String path, byte data[], List<ACL> acl,
            CreateMode createMode, Create2Callback cb, Object ctx)
{code}

Solution: 
a)  Need to handle NULL ACLs in removeDuplicates method in server.  
b) Also add the client side validation for null / empty ACL for above API 
similar to other create API



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