finally in run()

src/main/java/ClientHandler.java

@@ -39,6 +39,20 @@ public class ClientHandler implements Runnable {
       }
     } catch (IOException e) {
       e.printStackTrace();
+    } finally {
+      //chatServer.removeClient(this);
+      chatServer.broadcastMessage(name + " disconnected.");
+      
+      if (fromClientReader != null) {
+        try {
+          fromClientReader.close();
+        } catch (IOException e){
+          e.printStackTrace();
+        }
+      }
+      if (toClientWriter != null) {
+        toClientWriter.close();
+      }
     }
   }