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https://issues.apache.org/jira/browse/HBASE-24570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17136635#comment-17136635
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Pankaj Kumar commented on HBASE-24570:
--------------------------------------
Good finding [~Bo Cui]. Do you mind raising PR?
> connection#close throws NPE
> ---------------------------
>
> Key: HBASE-24570
> URL: https://issues.apache.org/jira/browse/HBASE-24570
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 2.2.3
> Reporter: Bo Cui
> Priority: Minor
>
> In the ConnectionImplementation construction method, if getRegistry throws
> exception， registry will be null，and then close will throw NPE
> {code:java}
> try {
> this.registry = AsyncRegistryFactory.getRegistry(conf);
> ...
> } catch (Throwable e) {
> // avoid leaks: registry, rpcClient, ...
> LOG.debug("connection construction failed", e);
> close();
> throw e;
> }
> {code}
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