Try to get javafx works on

If javafx works, I will considering designing a tiny UI on.

JavaApp/src/main/java/net/kdt/pojavlaunch/PLaunchApp.java

@@ -3,12 +3,10 @@ package net.kdt.pojavlaunch;
 import java.io.*;
 import java.util.Arrays;
 
+import javafx.application.Application;
+
 import org.lwjgl.glfw.CallbackBridge;
-/*
-import org.robovm.apple.foundation.*;
-import org.robovm.apple.uikit.*;
-import org.robovm.pods.dialog.*;
-*/
+
 import net.kdt.pojavlaunch.prefs.*;
 import net.kdt.pojavlaunch.utils.*;
 import net.kdt.pojavlaunch.value.*;
@@ -26,6 +24,20 @@ public class PLaunchApp {
         LauncherPreferences.loadPreferences();
     }
     
+    public static void applicationDidFinishLaunching() {
+        
+    @Override
+    public boolean didFinishLaunching(UIApplication application,
+        Thread launchThread = new Thread() {
+            @Override
+            public void run() {
+                Application.launch(PLaunchJFXApp.class);
+            }
+        };
+        launchThread.setDaemon(true);
+        launchThread.start();
+    }
+    
     public static void launchMinecraft() {
         System.out.println("Saving GLES context");
         JREUtils.saveGLContext();

JavaApp/src/main/java/net/kdt/pojavlaunch/PLaunchJFXApp.java

@@ -0,0 +1,20 @@
+package net.kdt.plaunch;
+
+import java.io.*;
+
+import javafx.application.Application;
+import javafx.scene.Group;
+import javafx.scene.Scene;
+import javafx.scene.shape.Circle;
+import javafx.stage.Stage;
+
+public class PLaunchJFXApp extends Application {
+    public void start(Stage stage) {
+        Circle circ = new Circle(40, 40, 30);
+        Group root = new Group(circ);
+        Scene scene = new Scene(root, 400, 300);
+        stage.setTitle("My JavaFX Application");
+        stage.setScene(scene);
+        stage.show();
+    }
+}