[16:41:18] WARN [org.apache.mina.util.DefaultExceptionMonitor] - Unexpected exception.
org.apache.mina.core.RuntimeIoException: java.net.SocketException: Invalid argument
        at org.apache.mina.transport.socket.nio.NioSocketSession$SessionConfigImpl.setSendBufferSize(NioSocketSession.java:243)
        at org.apache.mina.transport.socket.AbstractSocketSessionConfig.doSetAll(AbstractSocketSessionConfig.java:58)
        at org.apache.mina.core.session.AbstractIoSessionConfig.setAll(AbstractIoSessionConfig.java:69)
        at org.apache.mina.transport.socket.nio.NioSocketSession.<init>(NioSocketSession.java:62)
        at org.apache.mina.transport.socket.nio.NioSocketAcceptor.accept(NioSocketAcceptor.java:174)
        at org.apache.mina.transport.socket.nio.NioSocketAcceptor.accept(NioSocketAcceptor.java:51)
        at org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.processHandles(AbstractPollingIoAcceptor.java:505)
        at org.apache.mina.core.polling.AbstractPollingIoAcceptor$Acceptor.run(AbstractPollingIoAcceptor.java:446)
        at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:724)
Caused by: java.net.SocketException: Invalid argument
        at sun.nio.ch.Net.setIntOption0(Native Method)
        at sun.nio.ch.Net.setSocketOption(Net.java:373)
        at sun.nio.ch.SocketChannelImpl.setOption(SocketChannelImpl.java:189)
        at sun.nio.ch.SocketAdaptor.setIntOption(SocketAdaptor.java:300)
        at sun.nio.ch.SocketAdaptor.setSendBufferSize(SocketAdaptor.java:373)
        at org.apache.mina.transport.socket.nio.NioSocketSession$SessionConfigImpl.setSendBufferSize(NioSocketSession.java:241)
        ... 11 more