Support asynchronous events; Addresses BUKKIT-1212

src/main/java/net/minecraft/server/MinecraftServer.java

@@ -14,7 +14,6 @@ import java.util.logging.Logger;
 
 // CraftBukkit start
 import java.io.PrintStream;
-import java.io.PrintWriter;
 import java.net.UnknownHostException;
 import jline.console.ConsoleReader;
 import joptsimple.OptionSet;
@@ -83,6 +82,7 @@ public class MinecraftServer implements Runnable, ICommandListener, IMinecraftSe
     public RemoteConsoleCommandSender remoteConsole;
     public ConsoleReader reader;
     public static int currentTick;
+    public final Thread primaryThread;
     // CraftBukkit end
 
     public MinecraftServer(OptionSet options) { // CraftBukkit - adds argument OptionSet
@@ -106,6 +106,8 @@ public class MinecraftServer implements Runnable, ICommandListener, IMinecraftSe
             }
         }
         Runtime.getRuntime().addShutdownHook(new ServerShutdownThread(this));
+
+        primaryThread = new ThreadServerApplication("Server thread", this); // Moved from main
         // CraftBukkit end
     }
 
@@ -625,7 +627,7 @@ public class MinecraftServer implements Runnable, ICommandListener, IMinecraftSe
 
             // CraftBukkit - remove gui
 
-            (new ThreadServerApplication("Server thread", minecraftserver)).start();
+            minecraftserver.primaryThread.start(); // CraftBukkit - let MinecraftServer construct the thread
         } catch (Exception exception) {
             log.log(Level.SEVERE, "Failed to start the minecraft server", exception);
         }

src/main/java/org/bukkit/craftbukkit/CraftServer.java

@@ -1182,4 +1182,8 @@ public final class CraftServer implements Server {
     public int getWaterAnimalSpawnLimit() {
         return waterAnimalSpawn;
     }
+
+    public boolean isPrimaryThread() {
+        return Thread.currentThread().equals(console.primaryThread);
+    }
 }