Java web start InvocationTargetException with java 9 ea

Question

Java web start InvocationTargetException with java 9 ea

We have a Java launcher application running on java 8, but when it starts on Java 9 it crashes.

The application loads a new JavaFx scene containing a web view, which shows a web page containing a menu, this menu contains different buttons, each button opens a new window in which the content uses a subtle tone.

For security reasons, we encrypt the bank. Therefore, when we launch the application, we replace the class loader with our own class loader, which first decrypts the encrypted jar classes.

When you click any of the buttons, we use our own class loader to call the encrypted class using reflection and make the default loader of this class ours, so all other classes will be launched after it is decrypted.

This works fine up to java 9. However, when starting the application on java 9, the first time you press any of the buttons, the application starts correctly, but after that every time I click the buttons, I get a

java.lang.reflect.InvocationTargetException

thrown by java.lang.NullPointerException in jdk classes. Tracing is different from another button, but there is a common part, here is the exception that I get when I run a simple example:

java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.base/java.lang.reflect.Method.invoke(Unknown Source)
    at com.glt.cryptoclass.DecryptingClassLoader$PrivilegedLaunch.run(DecryptingClassLoader.java:56)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at com.glt.cryptoclass.DecryptingClassLoader.launch(DecryptingClassLoader.java:179)
    at com.glt.replace.Browser$1.call(Browser.java:58)
    at com.glt.replace.Browser$1.call(Browser.java:42)
    at javafx.graphics/javafx.concurrent.Task$TaskCallable.call(Unknown Source)
    at java.base/java.util.concurrent.FutureTask.run(Unknown Source)
    at java.base/java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
    at java.desktop/java.awt.Window.addToWindowList(Unknown Source)
    at java.desktop/java.awt.Window.init(Unknown Source)
    at java.desktop/java.awt.Window.<init>(Unknown Source)
    at java.desktop/java.awt.Frame.<init>(Unknown Source)
    at com.thinlet.FrameLauncher.<init>(FrameLauncher.java:32)
    at com.glt.replace.start.miau(start.java:32)
    at com.glt.replace.start.main(start.java:22)
    ... 12 more

, , , , , . jnlp :

<j2se version="1.6+" href="http://java.sun.com/products/autodl/j2se" java-vm-args="--add-opens=java.management/sun.management=ALL-UNNAMED --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.util=ALL-UNNAMED --add-opens=java.base/java.security=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED  --add-opens=java.base/java.util.concurrent=ALL-UNNAMED --add-opens=java.base/java.io=ALL-UNNAMED --add-opens=java.desktop/java.awt=ALL-UNNAMED --add-exports java.management/sun.management=ALL-UNNAMED --add-exports java.base/java.lang=ALL-UNNAMED --add-exports java.base/java.util=ALL-UNNAMED --add-exports java.base/java.security=ALL-UNNAMED --add-exports java.base/java.lang.reflect=ALL-UNNAMED  --add-exports java.base/java.util.concurrent=ALL-UNNAMED --add-exports=java.desktop/java.awt=ALL-UNNAMED --add-modules=java.xml.ws"/>

, jdep -jdkinternals, , - , .

, , , . - , ? - , - jnlp, ?

, : ( -):

    public void start(Stage primaryStage) throws Exception {
        this.stage = primaryStage;

        SwingUtilities.invokeLater(this);
    }

    public void run() {
        initAndShowGUI();
    }

    /**
     * Invokes platform run later to start the application
     * on the event dispatcher
     */
    private void initAndShowGUI() {
        Platform.runLater(new Runnable() {
            public void run() {
                initFX(stage);
            }
        });
    }

    /**
     * initialise the stage get as a parameter
     * @param stage stage to initialise
     */
    private void initFX(Stage stage){
//        browser = new Browser();
        browser = new Browser();
        scene = new Scene(browser,1050,700,Color.web("#666970"));
        stage.setScene(scene);
        stage.setTitle("TEST");
        scene.getStylesheets().add("webviewsample/BrowserToolbar.css");
        stage.show();

        //edit action on close

        stage.setOnCloseRequest(new EventHandler<WindowEvent>() {
            @Override
            public void handle(WindowEvent event) {
//                try {
//                    //WARNING uninstall all the javaws applications TODO fin the way to know the jnlp path
//                    Runtime.getRuntime().exec("javaws -uninstall");
//                } catch (IOException ex) {
//                    ex.printStackTrace();
//                }
                System.out.println("INFO: Stage is closing...");
                Platform.exit(); 
               System.exit(0);
            }
        });
    }

    /**
     * class that extends Region and implements the handler for
     *   the html content from the home applet web page
     * @param args
     */
    public static void main(String[] args){
        String base = "";

        System.out.println("telekey.TeleKeyJnlp.main(). DEBUG: Reading arguments.");
        for(String arg : args){
            System.out.println("telekey.TeleKeyJnlp.main(). DEBUG: argument: " + arg);
            if(arg.contains(BASE_URL) || arg.contains(SHORT_BASE_URL)){
                System.out.println("telekey.TeleKeyJnlp.main(). DEBUG: Argument found.");
                String []parts = arg.split(ARGUMENT_SEPARATOR);
                if(parts.length > 1){
                    System.out.println("telekey.TeleKeyJnlp.main(). DEBUG: Setting Base URL.");
                    base = parts[1];
                }
            }
        }

        if(base.isEmpty()){
            System.out.println("telekey.TeleKeyJnlp.main(). DEBUG: Base URL empty, setting base URL to " + DEFAULT_TK);
            base = DEFAULT_TK;
        }

        launch(args);
    }

WebEngine:

public void launch(final String className, final String[] args) {
        try {
            initWebView();
            //start new thread to the new window
            javafx.concurrent.Task configTask = new javafx.concurrent.Task<Void>() {
                @Override
                protected Void call() {
                    //ModConfig.main(args) // ModBrowser.main(args);
                    try {
                        if (dcl == null) {
                            KeyGetter key = new KeyGetter("https://www.telekey.nl/", "getReplaceKeyDetails.jsp");
//                                
                            key.fetchKeyDetails();
                            System.out.println(".actionPerformed(): DEBUG.  key details: " 
                                    + key.getAlgorithm()  + "\n" 
                                    + key.getCypherDesc() + "\n" 
                                    + key.getRawKey());
                            dcl = new DecryptingClassLoader(key);
                        }
                        Class[] parTypes = {String[].class};
                        dcl.launch(className, "main", args, parTypes, true);

                    } catch (Exception ex) {
                        ex.printStackTrace();
                    } finally {
                        return null;
                    }
                }
            };
            new Thread(configTask).start();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    } 

public void processNewLocation(String newLocation){
        String []args = null;
        if(newLocation != null && !newLocation.equals("https://www.google.nl/")){
            launch("com.glt.replace.start", args);
        }
    }
public void initWebView() {

        if (getChildren().contains(browser)) {
            getChildren().remove(browser);
        }
        browser = null;
        browser = new WebView();
        webEngine = browser.getEngine();


        //Set user agent to indicate we are on java fx webView
        webEngine.setUserAgent(webEngine.getUserAgent() + " JavaFX-WebView");
        webEngine.setJavaScriptEnabled(true);

        webEngine.locationProperty().addListener((ObservableValue<? extends String> observable, String oldLocation, String newLocation) -> {
            processNewLocation(newLocation);
        });

        webEngine.load("https://www.google.nl/"); // works but it does not have style
       getChildren().add(browser);


    }

, , google ( ):

public static void main(String[] args) {
        start s = new start();
        s.miau();



}

private void miau() {

    FrameLauncher f = new FrameLauncher("secundary", new Thinlet(), 300, 300);
    System.out.println("com.glt.main.start.main().  DEBUG:  Miau!!");
    f.setVisible(true);
}