Application doesn't terminate after execution.

[Jonathan Ferguson]

Hello, 

I have a project using dispatch 0.11.0, Scala 2.10.0, sbt 0.13.0 and JDK 1.7 which is running as expected, however it will not terminate. jstack shows several resources belonging to Netty remaining open. 

A simple project to replicate the problem can be found at https://github.com/jonoabroad/dispatch-non-termination.

 

Any pointers would be greatly appreciated. 

Thank you 

Jono 

[Jonathan Moore]

I have seen the same behavior with my code as well.

A thread dump shows:

"ForkJoinPool-2-worker-11@2409" daemon prio=5 tid=0x27 nid=NA waiting

  java.lang.Thread.State: WAITING

 at sun.misc.Unsafe.park(Unsafe.java:-1)

 at scala.concurrent.forkjoin.ForkJoinPool.scan(ForkJoinPool.java:2075)

 at scala.concurrent.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979)

 at scala.concurrent.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107)

When I remove the line:

    val request = Http(url(quoteUrl) OK as.String)

Then the program terminates normally.

Any ideas what's causing this?

[Luis Ángel Vicente Sánchez]

You have to call Http.shutdown to close all threads, if not the application will not stop.

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[Jonathan Moore]

That works, thanks!

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