Problem with Java NIO (java.nio.channels.IllegalBlockingModeException)

[Mike Jakubik]

Greetings java users,

I have been experiencing a randomly occurring problem with one of my java
applications. The application is question is a simple network chat
service, used with an online flash game. This application is known to have
worked without this problem on Linux for over 2 years now, in multiple
deployments. This leads me to believe that either the Linux JDK/network is
lax on error checks or there is a problem with the FreeBSD JDK/network
implementation. Below is the error that causes the application to stop
responding to network requests.

---
INFO   | jvm 1    | 2009/03/08 21:04:25 | Exception in thread "Thread-0"
java.nio.channels.IllegalBlockingModeException
INFO   | jvm 1    | 2009/03/08 21:04:25 | 	at
sun.nio.ch.ServerSocketAdaptor.accept(ServerSocketAdaptor.java:104)
INFO   | jvm 1    | 2009/03/08 21:04:25 | 	at
com.precyse.chat.service.connector.ServerSocketChannelConnector.registerSelection(ServerSocketChannelConnector.java:404)
INFO   | jvm 1    | 2009/03/08 21:04:25 | 	at
com.precyse.chat.service.connector.ServerSocketChannelConnector.run(ServerSocketChannelConnector.java:148)
---


http://java.sun.com/j2se/1.4.2/docs/api/java/nio/channels/SelectableChannel.html


Unfortunately i do not have access to the source code of this app. I have
tried diablo JDK 1.5 and 1.6, as well as the OpenJDK 1.6 port. I am
running a recent build of 7.1-AMD64. Any help would be greatly
appreciated, i would hate to have to switch to linux because of this.

Thank you.