Wrong use of boolean, should be different

src/main/java/link/infra/packwiz/installer/UpdateManager.java

@@ -172,6 +172,8 @@ public class UpdateManager {
 		}
 
 		if (cancelled) {
+			System.out.println("Update cancelled by user!");
+			System.exit(1);
 			return;
 		}
 

src/main/java/link/infra/packwiz/installer/ui/IUserInterface.java

@@ -23,6 +23,7 @@ public interface IUserInterface {
 
 	void executeManager(Runnable task);
 
+	// Return true if the installation was cancelled!
 	Future<Boolean> showOptions(List<IOptionDetails> option);
 	
 }

src/main/java/link/infra/packwiz/installer/ui/OptionsSelectWindow.java

@@ -102,14 +102,14 @@ public class OptionsSelectWindow extends JDialog implements ActionListener {
 		addWindowListener(new WindowAdapter() {
 			@Override
 			public void windowClosing(WindowEvent e) {
-				future.complete(false);
+				future.complete(true);
 			}
 
 			@Override
 			public void windowClosed(WindowEvent e) {
 				// Just in case closing didn't get triggered - if something else called dispose() the
 				// future will have already completed
-				future.complete(false);
+				future.complete(true);
 			}
 		});
 	}
@@ -189,10 +189,10 @@ public class OptionsSelectWindow extends JDialog implements ActionListener {
 	public void actionPerformed(ActionEvent e) {
 		if (e.getActionCommand().equals("OK")) {
 			tableModel.finalise();
-			future.complete(true);
+			future.complete(false);
 			dispose();
 		} else if (e.getActionCommand().equals("Cancel")) {
-			future.complete(false);
+			future.complete(true);
 			dispose();
 		}
 	}