2011-06-02 17:27:01,990 ERROR [org.apache.tomcat.util.net.PoolTcpEndpoint] Socket error caused by remote host /a.b.c.d
java.net.SocketException: Invalid argument
at java.net.PlainSocketImpl.socketSetOption(Native Method)
at java.net.PlainSocketImpl.setOption(PlainSocketImpl.java:264)
at java.net.Socket.setTcpNoDelay(Socket.java:839)
at org.apache.tomcat.util.net.PoolTcpEndpoint.setSocketOptions(PoolTcpEndpoint.java:503)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:515)
at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
at java.lang.Thread.run(Thread.java:595)