为什么会有socketException???急。。。

谁能告诉我为什么会有socketException???
我是在做rmi调用的时候，开多个客户端，一个服务端，为什么在返回的时候会通讯异常？？？
java.rmi.MarshalException: error marshalling arguments; nested exception is:
    java.net.SocketException: Software caused connection abort: socket write error
    at sun.rmi.server.UnicastRef.invoke(Unknown Source)
Caused by: java.net.SocketException: Software caused connection abort: socket write error
    at java.net.SocketOutputStream.socketWrite0(Native Method)
    at java.net.SocketOutputStream.socketWrite(Unknown Source)
    at java.net.SocketOutputStream.write(Unknown Source)
    at java.io.BufferedOutputStream.flushBuffer(Unknown Source)
    at java.io.BufferedOutputStream.write(Unknown Source)
    at java.io.ObjectOutputStream$BlockDataOutputStream.drain(Unknown Source)
    at java.io.ObjectOutputStream$BlockDataOutputStream.setBlockDataMode(Unknown Source)
    at java.io.ObjectOutputStream.writeNonProxyDesc(Unknown Source)
    at java.io.ObjectOutputStream.writeClassDesc(Unknown Source)
    at java.io.ObjectOutputStream.writeOrdinaryObject(Unknown Source)
    at java.io.ObjectOutputStream.writeObject0(Unknown Source)
    at java.io.ObjectOutputStream.writeFatalException(Unknown Source)
    at java.io.ObjectOutputStream.writeObject(Unknown Source)
    at sun.rmi.server.UnicastRef.marshalValue(Unknown Source)
    ... 6 more
到底是哪出了问题？？？