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https://issues.apache.org/jira/browse/ZOOKEEPER-3497?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zili Chen updated ZOOKEEPER-3497:
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Summary: Make org.apache.zookeeper.jmx.MBeanRegistry a standard singleton
(was: org.apache.zookeeper.jmx.MBeanRegistry 单例 构造函数没有私有化)
> Make org.apache.zookeeper.jmx.MBeanRegistry a standard singleton
> ----------------------------------------------------------------
>
> Key: ZOOKEEPER-3497
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3497
> Project: ZooKeeper
> Issue Type: Improvement
> Components: jmx
> Affects Versions: 3.6.0
> Reporter: jwhao
> Priority: Minor
>
> org.apache.zookeeper.jmx.MBeanRegistry
> 此类使用单例模式实现，项目中其他模块也没有手动new此类，但是此类的构造函数没有私有化
> public MBeanRegistry () {
> try {
> mBeanServer = ManagementFactory.getPlatformMBeanServer();
> } catch (Error e) {
> // Account for running within IKVM and create a new MBeanServer
> // if the PlatformMBeanServer does not exist.
> mBeanServer = MBeanServerFactory.createMBeanServer();
> }
> }
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