[GitHub] zookeeper pull request #160: ZOOKEEPER-2680:Correct DataNode.getChildren() i...

[edwardoliveira <gi...@git.apache.org>]

Github user edwardoliveira commented on a diff in the pull request:

    https://github.com/apache/zookeeper/pull/160#discussion_r98967876
  
    --- Diff: src/java/main/org/apache/zookeeper/server/DataTree.java ---
    @@ -1045,18 +1046,16 @@ private void getCounts(String path, Counts counts) {
             if (node == null) {
                 return;
             }
    -        Set<String> children = null;
    +        String[] children = null;
             int len = 0;
             synchronized (node) {
    -            children = node.getChildren();
    +            Set<String> childs = node.getChildren();
    +            children = childs.toArray(new String[childs.size()]);
    --- End diff --
    
    FYI (only): I *guess* some tests broke 'cause `toArray` copies the contents of `childs` to `children` while `node.getChildren()` returns a internal reference (subject to underneath change) to `children`. So, it would need to be something like `children = new HashSet<>(childs);`


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