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https://issues.apache.org/jira/browse/ZOOKEEPER-3007?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16451529#comment-16451529
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ASF GitHub Bot commented on ZOOKEEPER-3007:
-------------------------------------------
Github user lujiefsi commented on the issue:
https://github.com/apache/zookeeper/pull/495
@phunt
I got it. I have found all "deserialize" root caller and callsite postion:
(1)QuorumPeer#1208,#1154,#1152,#1182,#1154,#1194,#1195: their code have
same format:
` try {
//root caller
} catch (Exception e) {
LOG.warn("Unexpected exception",e);
}
} `
So i think the RuntimeException in the patch is ok in here
(2)QuorumPeer#860,852: there is another "throw new RuntimeException" at
#520. So i think the RuntimeException in the patch is ok in here
(3)ZooKeeperServerMain#64 SnapshotFormatter#53 : these two caller are main
function, when run into RuntimeException , it will exit, I am not sure the
"RuntimeException" in the patch whether is ok in here.
> Potential NPE in ReferenceCountedACLCache#deserialize
> ------------------------------------------------------
>
> Key: ZOOKEEPER-3007
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3007
> Project: ZooKeeper
> Issue Type: Bug
> Affects Versions: 3.6.0
> Reporter: lujie
> Priority: Major
>
> Inspired by ZK-3006 , I develop a simple static analysis tool to find other
> Potential NPE like ZK-3006. This bug is found by this tool ,and I have
> carefully studied it. But i am a newbie at here so i may be wrong, hope
> someone could confirm it and help me improve this tool.
> h3. Bug describtion:
> callee BinaryInputArchive#startVector will return null:
> {code:java}
> // code placeholder
> public Index startVector(String tag) throws IOException {
> int len = readInt(tag);
> if (len == -1) {
> return null;
> }
> {code}
> and caller ReferenceCountedACLCache#deserialize call it without null check
> {code:java}
> // code placeholder
> Index j = ia.startVector("acls");
> while (!j.done()) {
> ACL acl = new ACL();
> acl.deserialize(ia, "acl");
> }{code}
> but all the other 14 caller of BinaryInputArchive#startVector performs null
> checker like:
> {code:java}
> // code placeholder
> Index vidx1 = a_.startVector("acl");
> if (vidx1!= null)
> for (; !vidx1.done(); vidx1.incr()){
> .....
> }
> }
> }
> {code}
> so i think we also need add null check in caller
> ReferenceCountedACLCache#deserialize just like other 14 caller
>
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