Java fix (1/?)

build.gradle

@@ -30,7 +30,9 @@ repositories {
 dependencies {
     implementation "com.mobidevelop.robovm:robovm-rt:${roboVMVersion}"
     implementation "com.mobidevelop.robovm:robovm-cocoatouch:${roboVMVersion}"
- 
+    
+    implementation "com.google.code.gson:gson:2.8.6"
+
     implementation fileTree(dir: 'libs', include: ['*.jar'])
 }
 

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

@@ -7,11 +7,14 @@ import javafx.geometry.Rectangle2D;
 import javafx.scene.Group;
 import javafx.scene.Scene;
 import javafx.scene.shape.Circle;
+import javafx.stage.Screen;
 import javafx.stage.Stage;
 
 import net.kdt.pojavlaunch.utils.*;
 import net.kdt.pojavlaunch.value.*;
 
+import org.lwjgl.glfw.CallbackBridge;
+
 public class PLaunchJFXApp extends Application {
     public void start(Stage stage) {
         Rectangle2D bounds = Screen.getPrimary().getBounds();