NIO Socket server written using ordinary TCP debugging tools can do

RT: NIO wrote Socket server, using ordinary TCP debugging tools can do
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Today, with apache.mina write a server-side , using TCP debugging tools impersonate the client. Found to listen to the communication to create, access, closed. But not receive messages
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with MINA write client test it. Such tricky point
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If you must write with MINA client , will not be too restrictive ? For example, I might use VC or C # to write third-party clients .

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find the reasons ~ ~