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From "Hiranya Jayathilaka (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCORE-409) NIO HttpServer Does Not Shutdown Listener ExecutorService
Date Fri, 25 Sep 2015 19:08:04 GMT
Hiranya Jayathilaka created HTTPCORE-409:
--------------------------------------------

             Summary: NIO HttpServer Does Not Shutdown Listener ExecutorService
                 Key: HTTPCORE-409
                 URL: https://issues.apache.org/jira/browse/HTTPCORE-409
             Project: HttpComponents HttpCore
          Issue Type: Bug
          Components: HttpCore NIO
    Affects Versions: 4.4.3
            Reporter: Hiranya Jayathilaka


org.apache.http.impl.nio.bootstrap.HttpServer does not shutdown its listenerExecutorService.
This causes the following thread to stay alive even after calling shutdown on HttpServer:

"HTTP-listener-8080-1" #11 prio=5 os_prio=31 tid=0x00007fc934887000 nid=0x6c03 waiting on
condition [0x0000000120c8d000]
   java.lang.Thread.State: WAITING (parking)
	at sun.misc.Unsafe.park(Native Method)
	- parking to wait for  <0x000000076c0697e0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
	at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
	at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
	at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
	at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)

As a result the applications that use this HttpServer do not exit gracefully.

Note: The blocking HttpServer does shutdown this ExecutorService, and hence the problem only
occurs in the NIO HttpServer.



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