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https://issues.apache.org/jira/browse/GEODE-1742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dan Smith resolved GEODE-1742.
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Resolution: Fixed
> Possible NPE from CqAttributesFactory.getCQListeners
> -----------------------------------------------------
>
> Key: GEODE-1742
> URL: https://issues.apache.org/jira/browse/GEODE-1742
> Project: Geode
> Issue Type: Bug
> Components: client queues
> Reporter: Dan Smith
> Assignee: Dan Smith
>
> This method checks to see if cqListeners is null outside of synchronization.
> Other methods can set cqListeners to be null after this check but before
> cqListeners is used, resulting in an NPE
> {code}
> public CqListener[] getCqListeners() {
> if (this.cqListeners == null){
> return CqAttributesImpl.EMPTY_LISTENERS;
> }
>
> CqListener[] result = null;
> synchronized(this.clSync){
> //Here, cqListeners may have been set to null by another method
> result = new CqListener[cqListeners.size()];
> cqListeners.toArray(result);
> }
> return result;
> }
> {code}
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