Przemyslaw Pretki created YARN-505:
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Summary: NPE at AsyncDispatcher$GenericEventHandler
Key: YARN-505
URL: https://issues.apache.org/jira/browse/YARN-505
Project: Hadoop YARN
Issue Type: Improvement
Components: resourcemanager
Affects Versions: 3.0.0
Reporter: Przemyslaw Pretki
Priority: Minor
Steps to reproduce:
{code}
@Test
public void testAsyncDispatcher()
{
AsyncDispatcher dispatcher = new AsyncDispatcher();
EventHandler handler = dispatcher.getEventHandler();
handler.handle(null);
}
{code}
Moreover, event taken from *BlockingQueue* will never be *null*, so that it
seems that the following condition is not necessary
(AsyncDispatcher.createThread() method):
{code}
if (event != null) {
dispatch(event);
}
{code}
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