End of file exception

Vaadin 6 / 7 / 8
1

Hello all,

I’m not sure whether this error belongs to Vaadin, but I always get this message in the logifle by testing my vaadin application on a tablet.
I start my vaadin application within spring boot. Does anyone knows what the problem is / it can fixed?

Thanks! Best Regards,
Thomas

2016-12-08 22:10:12,976 ERROR | http-nio-80-exec-1 | org.atmosphere.container.JSR356Endpoint |
java.io.EOFException: null
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.fillReadBuffer(NioEndpoint.java:1202)
at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.isReadyForRead(NioEndpoint.java:1127)
at org.apache.tomcat.websocket.server.WsFrameServer.onDataAvailable(WsFrameServer.java:58)
at org.apache.tomcat.websocket.server.WsHttpUpgradeHandler.upgradeDispatch(WsHttpUpgradeHandler.java:148)
at org.apache.coyote.http11.upgrade.UpgradeProcessorInternal.dispatch(UpgradeProcessorInternal.java:54)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:53)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:802)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1410)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:745)

2

From the available information (atmosphere error), I can only think of that maybe your mobile browser doesn’t support WebSockets communication. Are you perhaps using Push in your application?

-Olli

3

Hello,

Yes, I’m using PUSH in my application. But the fields are updated (I have a cylce refresh implemented).

Best Regards,
Thomas

4

Hi,

you could then experiment with different Push transport modes; see this blog post for more information:
https://blog.codecentric.de/en/2014/08/the-3-different-transport-modes-with-vaadin-and-push/

-Olli

5

… I think another option solved the issue! Thanks…

6

Great!

7

Thomas, how did you solve the issue? We are having the same problem in our production app, not sure what is the problem there… Thank you!

8

I added to following to the annotation:

@Push(value = PushMode.AUTOMATIC, transport = Transport.LONG_POLLING)