Dan Smith created GEODE-1742:
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Summary: 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
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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