prepared a ground to run AI inputs skipping EDT thread

src/main/java/forge/game/ai/AiInput.java

@@ -0,0 +1,8 @@
+package forge.game.ai;
+
+import forge.control.input.Input;
+
+// This interface indicates that the showMessage has to be invoked in a new pooled thread, not EDT.
+public interface AiInput extends Input {
+
+}

src/main/java/forge/game/ai/AiInputCommon.java

@@ -28,7 +28,7 @@ import forge.control.input.InputBase;
  * @author Forge
  * @version $Id$
  */
-public class AiInputCommon extends InputBase {
+public class AiInputCommon extends InputBase implements AiInput {
     /** Constant <code>serialVersionUID=-3091338639571662216L</code>. */
     private static final long serialVersionUID = -3091338639571662216L;
 

src/main/java/forge/gui/InputProxy.java

@@ -26,6 +26,7 @@ import forge.FThreads;
 import forge.control.input.Input;
 import forge.game.GameState;
 import forge.game.MatchController;
+import forge.game.ai.AiInput;
 import forge.game.phase.PhaseHandler;
 import forge.game.player.Player;
 
@@ -70,7 +71,11 @@ public class InputProxy implements Observer {
         
         if (nextInput != null) {
             this.input.set(nextInput);
-            FThreads.invokeInEDT(new Runnable() { @Override public void run() { nextInput.showMessage(); } });
+            Runnable showMessage = new Runnable() { @Override public void run() { nextInput.showMessage(); } };
+//            if( nextInput instanceof AiInput )
+//                FThreads.invokeInNewThread(showMessage, true);
+//            else
+                FThreads.invokeInEDT(showMessage);
         } else if (!ph.isPlayerPriorityAllowed()) {
             ph.getPriorityPlayer().getController().passPriority();
         }