Hiranya Jayathilaka created HTTPCORE-409:
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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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