multithreading - Web browsers send multiple request to custom Java server -

i have had make custom java thread pooled server part of bigger project .

i have run issue hurting neurons inside head since atleast 1 complete day , night .

what have done simple (followed online resource ). have while loop , loops forever . comes request , accepts , sends thread pool (java executor framework).

protected executorservice threadpool = executors.newfixedthreadpool(10);  while(! isstopped()){     socket clientsocket = null;     try {         clientsocket = this.serversocket.accept();     } catch (ioexception e) {         if(isstopped()) {             system.out.println("server stopped.") ;             return;         }         throw new runtimeexception("error accepting client connection", e);     }     this.threadpool.execute(         new task(clientsocket,         "test")     );     //system.out.println("processed"); } this.threadpool.shutdown(); 

can't simpler right ?

also task class ,just accepts socket , , writes it's output stream

public class task implements runnable{      protected socket clientsocket = null;     protected string servertext   = null;      public task(socket clientsocket, string servertext) {         this.clientsocket = clientsocket;         this.servertext   = servertext;     }      public void run() {         try {             inputstream input  = clientsocket.getinputstream();             outputstream output = clientsocket.getoutputstream();             long time = system.currenttimemillis();             output.write(("http/1.1 200 ok\n\nworkerrunnable: " +                     this.servertext + " - " +                     time +                     "").getbytes());             output.close();             input.close();             system.out.println("request processed: " + time);         } catch (ioexception e) {             //report exception somewhere.             e.printstacktrace();         }     } } 

here issue . chrome whenever write localhost:9004 in chrome , see (request processed : time) on console , multiple times , though hit url once .

how possible ? . happening multiple requests server initiated reason or java executor framework @ fault here perhaps executing 1 request multiple times or ? . dont believe either of reasons can true

firefox

when hit url ff , request processed correctly comes once on console each time hit server. (rarely behave chrome , on random moments , shows 2 request processed messages single url hit)

custom java client when hit url custom made java client application , server application's console window correctly shows 1 request processed tag each request .

i hit url 10 times , blazingly fast inside loop , , correctly received 10 request processed messages on server end

ie same chrome .

can guys please provide me insight on situation ? . apologize length of question .

thank .

there several requests sent out browser different purposes. once ordinary http request know it, there if-modified request, should grab header, , there request web-site icon.

printing out actual request sent browser might enlighten you. ;)