@Test
  @SuppressWarnings("deprecation")
  public void testGetChildDataAndWatchForNewChildrenShouldNotThrowNPE() throws Exception {
    ZKUtil.getChildDataAndWatchForNewChildren(ZKW, "/wrongNode");
  }
Test should not fail with NPE when getChildDataAndWatchForNewChildren invoked with wrongNode
hbase-zookeeper/src/test/java/org/apache/hadoop/hbase/zookeeper/TestZKUtil.java