[MC-2670] Java SocketException on shutdown

Every time I issue the "stop" command, this happens:

java.net.SocketException: Socket closed
        at java.net.PlainSocketImpl.socketAccept(Native Method)
        at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398)
        at java.net.ServerSocket.implAccept(ServerSocket.java:522)
        at java.net.ServerSocket.accept(ServerSocket.java:490)
        at hu.run(SourceFile:66)

This happens every time I stop the server, I only run bleeding edge builds on this server, but it is annoying that they don't make clean exits. Additionally, either it isn't working or doesn't exist, but sigint quits java, not minecraft, which makes writing a good init.d script nigh impossible.

Related issues

is duplicated by

MC-91 java.net.SocketException: Socket closed - On Server Shutdown

MC-13575 Server error message!

MC-16653 When stopping a server, a SocketException is thrown

MC-17244 Server doesn't always save world on SIGTERM

relates to

MC-10976 Async FileSavingProcess will cause chunk overwrites/data loss ( Fix included )

Comments

Selbram (Tory Clement) 2012-11-10T03:30:30Z

Do you get the same error with Oracle Java? Better question, Would you be willing to test Oracle Java to see if it gives the same error? 🙂

kumasasa 2012-11-10T08:22:36Z

This message is just telling you "Socket closed" nothing else. There is no error, this is normal.

Gravious 2013-05-27T18:13:58Z

It is a SocketException, therefore it is thrown inside of a 'try'-loop, most definitely something that is not intended to be there.

Also, perhaps the title should be changed to "Java SocketException on shutdown", as I wasn't able to find it by searching for those keywords.

Michael Aldridge 2013-05-28T02:11:25Z

it is intended to throw errors on shutdown? In my experience, good code doesn't do that! I can look into it with oracle java, but seeing as that is EOL for my platform, I was trying to migrate away from it.

Lei Zhao 2013-07-31T17:51:14Z

Agree with Michael. How could this be intended?? You should catch the exception and give a better message.

kumasasa 2013-07-31T22:14:45Z

Ok, reopened.

xPaw 2013-10-03T14:36:15Z

This is still happening on latest snapshot.

[14:34:09] [Server Listen Thread/ERROR]: Exception handling pending connection
java.net.SocketException: Socket closed
        at java.net.PlainSocketImpl.socketAccept(Native Method) ~[?:1.7.0_25]
        at java.net.AbstractPlainSocketImpl.accept(AbstractPlainSocketImpl.java:398) ~[?:1.7.0_25]
        at java.net.ServerSocket.implAccept(ServerSocket.java:530) ~[?:1.7.0_25]
        at java.net.ServerSocket.accept(ServerSocket.java:498) ~[?:1.7.0_25]
        at jt.run(SourceFile:66) [minecraft_server.jar:?]

Talven81 2013-11-26T18:53:48Z

Is this still a concern in the current Minecraft version 1.7.2 / Launcher version 1.3.4 ? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

Lei Zhao 2013-11-26T19:03:36Z

Talven81, my 1.7.2 server is not throwing exceptions on shutdown anymore.

Christie N 2014-01-25T19:07:38Z

An error like this is still present in 1.7.4, but inconsistent. (sometimes it shows, sometimes not)