cleanup of NPE and Resource issue nits found by static analysis
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Key: ZOOKEEPER-109
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-109
Project: Zookeeper
Issue Type: Bug
Components: server
Affects Versions: 3.0.0
Reporter: Patrick Hunt
Assignee: Patrick Hunt
NPE/ResourceLeak cleanup for issues found during static analysis.
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