Adding blocking stop()

src/de/steamwar/bungeecore/Subserver.java

@@ -85,19 +85,23 @@ public class Subserver implements Runnable, Listener {
         }
     }
 
-    static void shutdown(){
+    public void stop(){
+        writer.println("stop");
         try {
-            while (!serverList.isEmpty()) {
-                Subserver server = serverList.get(0);
-                server.writer.println("stop");
-                server.p.waitFor();
-            }
+            p.waitFor();
         }catch(InterruptedException e){
-            logger.log(Level.SEVERE, "Subserver shutdown interrupted!", e);
+            logger.log(Level.SEVERE, "Subserver stop interrupted!", e);
             Thread.currentThread().interrupt();
         }
     }
 
+    static void shutdown(){
+        while (!serverList.isEmpty()) {
+            Subserver server = serverList.get(0);
+            server.stop();
+        }
+    }
+
     private boolean onServer(ProxiedPlayer p){
         return cachedPlayers.contains(p) || players.contains(p);
     }