[HBASE-18198] Node creation fails with NPE if ACLs are null

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Assignee: Unassigned
• Reporter: Bhupendra Kumar Jain
• Created: 09/Jun/17 10:12
• Updated: 01/Aug/18 06:20
• Resolved: 09/Jun/17 10:15

Description

If null ACLs are passed then zk node creation fails with NPE

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)

Below APIs have problem.

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)

Solution: Need to handle NULL acl in removeDuplicates method in server.