Comparison fix

src/engine/server/world/WorldServer.java

@@ -724,7 +724,7 @@ public class WorldServer {
         if (flashString == null)
             return;
 
-        if (flashString == "")
+        if (flashString.equals(""))
             flashString = "Rebooting for to fix bug.";
 
         Logger.info("Sending flash from external interface");