You should inspect full trace very carefully,
I've a server socket application and fixed a java.net.SocketException: Connection reset case.
In my case it happens while reading from a clientSocket Socket object which is closed its connection because of some reason. (Network lost,firewall or application crash or intended close)
Actually I was re-establishing connection when I got an error while reading from this Socket object.
Socket clientSocket = ServerSocket.accept(); is = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); int readed = is.read(); // WHERE ERROR STARTS !!!
The interesting thing is for my JAVA Socket if a client connects to my ServerSocket and close its connection without sending anything is.read() is being called repeatedly.It seems because of being in an infinite while loop for reading from this socket you try to read from a closed connection. If you use something like below for read operation;
while(true) { Receive(); }
Then you get a stackTrace something like below on and on
java.net.SocketException: Socket is closed at java.net.ServerSocket.accept(ServerSocket.java:494)
What I did is just closing ServerSocket and renewing my connection and waiting for further incoming client connections
String Receive() throws Exception { try { int readed = is.read(); .... }catch(Exception e) { tryReConnect(); logit(); //etc } //... }
This reestablises my connection for unknown client socket losts
private void tryReConnect() { try { ServerSocket.close(); //empty my old lost connection and let it get by garbage col. immediately clientSocket=null; System.gc(); //Wait a new client Socket connection and address this to my local variable clientSocket= ServerSocket.accept(); // Waiting for another Connection System.out.println("Connection established..."); }catch (Exception e) { String message="ReConnect not successful "+e.getMessage(); logit();//etc... } }
I couldn't find another way because as you see from below image you can't understand whether connection is lost or not without a try and catch ,because everything seems right . I got this snapshot while I was getting Connection reset continuously.
