multithreading - One Client just listening after a few messages: Client Server Chat with ArrayList sockets outputstreamwriter -

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i have got problem broadcast method. did chat server , clients. each client runs 1 thread , has own socket output stream @ beginning works fine after few messages 1 client can send while other receiving messages..?! don't know why idea? @ beginning both can send , receive.. can't close outputstream because nullpointerexception maybe mistake? thankful every help!

server: 

public static void broadcastjson(jsonobject jsonobject, arraylist<socket> socketlist)throws ioexception{          outputstreamwriter out = null;         for(int i=0; i<socketlist.size(); i++){             out=new outputstreamwriter(socketlist.get(i).getoutputstream(), "utf-8");             out.write(jsonobject.tostring() + "\n");             out.flush();         }     }

client:

public jsonobject receivejson()throws ioexception{         bufferedreader in = new bufferedreader(new inputstreamreader(client.socket.getinputstream(), "utf-8"));         string obje = in.readline();         jsonobject jsonobject = new jsonobject(obje);         return jsonobject; }

you're losing data read-ahead bufferedreader. don't create new streams/readers/writers per message. use same ones life of socket.


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