javaFX program not working after changing the scen

2020-03-20 14:20发布

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问题:

My program worked perfectly before, And I changed my scene builder to gluon scene builder 10 from JavaFx scene builder 2.0 to add some CSS styling. I added the styling and the program showed errors like WARNING: Loading FXML document with JavaFX API of version 10.0.1 by JavaFX runtime of version 9.0.4 And then I updated my JDK to version 10.0.2 but it stii shows errors like this.

Exception in Application start method
java.lang.reflect.InvocationTargetException
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:473)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:372)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:564)
    at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:941)
Caused by: java.lang.RuntimeException: Exception in Application start method
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:973)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:198)
    at java.base/java.lang.Thread.run(Thread.java:844)
Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
    at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:48)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:488)
    at java.base/java.lang.Class.newInstance(Class.java:560)
    at javafx.fxml/javafx.fxml.FXMLLoader$InstanceDeclarationElement.constructValue(FXMLLoader.java:1019)
    at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processStartElement(FXMLLoader.java:754)
    at javafx.fxml/javafx.fxml.FXMLLoader.processStartElement(FXMLLoader.java:2722)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2552)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2466)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3253)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3210)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3179)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3152)
    at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:3129)
    at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:3122)
    at sample.Main.start(Main.java:17)
    at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:919)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$11(PlatformImpl.java:449)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$9(PlatformImpl.java:418)
    at java.base/java.security.AccessController.doPrivileged(Native Method)
    at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:417)
    at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:96)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
    at javafx.graphics/com.sun.glass.ui.win.WinApplication.lambda$runLoop$3(WinApplication.java:175)
    ... 1 more
Caused by: java.lang.ClassNotFoundException: com.sun.javafx.css.parser.CSSParser
    at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:582)
    at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:190)
    at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:499)
    ... 27 more
Exception running application sample.Main

My main class is 

public class Main extends Application {    

    @Override
    public void start(Stage primaryStage) throws Exception{
        Parent root = FXMLLoader.load(getClass().getResource("../Interface/sample.fxml"));
        primaryStage.setTitle("JFS");
        primaryStage.setScene(new Scene(root, 600, 400));
        primaryStage.show();    
    }  

    public static void main(String[] args) {
        launch(args);
    }

}

My Controller class is 

public class Controller {

    public TextField newsletterEmail;
    public JFXButton regButton;
    public JFXTextField loginUserName;
    public JFXPasswordField loginPassword;
    public JFXButton loginButton;
    Connectivity connection = new Connectivity();
    Connection connec = connection.getConnection();
    SceneSwitcher sceneSwitcher = new SceneSwitcher();
    ViewMyAccount viewMyAccount = new ViewMyAccount();

    loginValidation validateLogin = new loginValidation();

    public void loginButtonClicked(ActionEvent actionEvent) {

        System.out.println(loginUserName.getText());
        /*viewMyAccount.setMailLabel(loginUserName.getText());
        System.out.println(viewMyAccount.getMailLabel());*/


        boolean validateCustomer = validateLogin.CusLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
        boolean validateStaff = validateLogin.StaffLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);
        boolean validateOwner = validateLogin.OwnerLoginValidate(loginUserName.getText(),loginPassword.getText(),connec);

        if(loginUserName.getText().equals("") || loginPassword.getText().equals("")){
            AlertBox.displayAlertBox("ERROR!","Both fields can't be empty!");
        }else{
            if(validateCustomer){
                sceneSwitcher.switchScene(loginButton,"customerView.fxml","Customer");
            }else if(validateStaff){
                sceneSwitcher.switchScene(loginButton,"staffView.fxml","Customer");
            }else if(validateOwner){
                sceneSwitcher.switchScene(loginButton,"ownerView.fxml","Customer");
            }else{
                AlertBox.displayAlertBox("ERROR!","Invalid Username or Password! ");
            }
        }     

    }

    public void registerButtonClicked(ActionEvent actionEvent) {

        sceneSwitcher.switchScene(regButton,"register.fxml","Register");
    }

    NewsletterValidation validateEmail = new NewsletterValidation();

    public void newsletterButtonClicked(ActionEvent actionEvent) throws SQLException {


        boolean isNewsletterEmailEmpty = validateEmail.invalidError(newsletterEmail);
        boolean isValid = validateEmail.isValidEmailAddress(newsletterEmail);
        boolean isEmailExist = validateEmail.checkEmailExists(newsletterEmail.getText(),connec);

        if(isNewsletterEmailEmpty && isValid && isEmailExist){

            PreparedStatement pstmt = null;
            String sql = "INSERT INTO `nwemails` (`email`)\n" +
                    "VALUES (?);";        

            try {
                pstmt = connec.prepareStatement(sql);
                pstmt.setString(1,newsletterEmail.getText());

                int i = pstmt.executeUpdate();
                System.out.println("newsletter email update status = " + i);
                AlertBox.displayAlertBox("Alert!","You have successfully signed up for the news letter");


            } catch (SQLException e) {
                System.err.println(e);
            }finally {
                pstmt.close();
            }

        }else{
            System.out.println("Validation failed");
        }   

    }   

}

my FXML file is 

<?xml version="1.0" encoding="UTF-8"?>

<?import com.jfoenix.controls.JFXButton?>
<?import com.jfoenix.controls.JFXPasswordField?>
<?import com.jfoenix.controls.JFXTextField?>
<?import de.jensd.fx.glyphs.fontawesome.FontAwesomeIconView?>
<?import javafx.scene.control.Button?>
<?import javafx.scene.control.Label?>
<?import javafx.scene.control.TextField?>
<?import javafx.scene.layout.AnchorPane?>
<?import javafx.scene.text.Font?>

<AnchorPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="400.0" prefWidth="600.0" stylesheets="@../CSS/dracula.css" xmlns="http://javafx.com/javafx/10.0.1" xmlns:fx="http://javafx.com/fxml/1" fx:controller="sample.Controller">
   <children>
      <Label layoutX="227.0" layoutY="259.0" prefHeight="17.0" prefWidth="127.0" text="Don't have an account?" />
      <Label layoutX="207.0" prefHeight="74.0" prefWidth="182.0" text="JFS" AnchorPane.leftAnchor="207.0" AnchorPane.rightAnchor="211.0" AnchorPane.topAnchor="0.0">
         <font>
            <Font name="Matura MT Script Capitals" size="53.0" />
         </font>
      </Label>
      <Label layoutX="241.0" layoutY="98.0" prefHeight="17.0" prefWidth="118.0" text="Jeff's Fishing Shack" textAlignment="CENTER">
         <font>
            <Font name="Marlett" size="13.0" />
         </font>
      </Label>
      <Button layoutX="186.0" layoutY="370.0" mnemonicParsing="false" onAction="#newsletterButtonClicked" prefHeight="25.0" prefWidth="210.0" text="Send me Updates" />
      <Label layoutX="111.0" layoutY="316.0" prefHeight="17.0" prefWidth="378.0" text="Or sign up for The free newsletter covering the top industry headlines" />
      <TextField fx:id="newsletterEmail" layoutX="195.0" layoutY="339.0" prefHeight="25.0" prefWidth="191.0" promptText="Email" />
      <JFXTextField fx:id="loginUserName" layoutX="203.0" layoutY="136.0" prefHeight="25.0" prefWidth="191.0" promptText="Username (email)" />
      <JFXPasswordField fx:id="loginPassword" layoutX="203.0" layoutY="185.0" prefHeight="25.0" prefWidth="191.0" promptText="Password" />
      <FontAwesomeIconView glyphName="USER" layoutX="171.0" layoutY="161.0" size="25.0" wrappingWidth="15.0" />
      <FontAwesomeIconView glyphName="KEY" layoutX="170.0" layoutY="208.0" size="25.0" wrappingWidth="15.0" />
      <JFXButton fx:id="loginButton" layoutX="265.0" layoutY="225.0" onAction="#loginButtonClicked" text="LOGIN" />
      <JFXButton fx:id="regButton" layoutX="257.0" layoutY="284.0" onAction="#registerButtonClicked" text="REGISTER" />
   </children>
</AnchorPane>

The stacktrace show this like as the wrong line

Parent root = FXMLLoader.load(getClass().getResource("../Interface/sample.fxml"));

I've been wasting more than 3 hours for finding an answer. So please help me with this.

the fontawesome version:

回答1:

This error:

Caused by: java.lang.NoClassDefFoundError: com/sun/javafx/css/parser/CSSParser
at de.jensd.fx.glyphs.GlyphIcon.<clinit>(GlyphIcon.java:48)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

indicates that one of your dependencies (de.jensd.fx.glyphs.GlyphIcon) is trying to access a non existing class (com.sun.javafx.css.parser.CSSParser) in your JDK 9/10.

With the Java 9 release, many JavaFX classes that were private (com.sun.javafx.*) were moved to public API (in this case, javafx.css.parser.CSSParser).

If you run on Java 9 or 10, you have to use third party dependencies at least compatible with Java 9.

From the list of your dependencies:

  • ControlsFX

8.40.11 is compatible with Java/JavaFX 8. You need to use ControlsFX 9.0.0

You can download the jar from Maven Central, or add the maven/gradle coordinates:

<dependency>
    <groupId>org.controlsfx</groupId>
    <artifactId>controlsfx</artifactId>
    <version>9.0.0</version>
</dependency>

or:

compile 'org.controlsfx:controlsfx:9.0.0'
  • FontAwesomeFX

FontAwesomeFX 8.15 is also compatible with Java/JavaFX 8, so you need to use the 9 versions:

Jars: fontawesomefx-commons, fontawesomefx-controls

or dependencies:

compile 'de.jensd:fontawesomefx-commons:9.1.2'
compile 'de.jensd:fontawesomefx-controls:9.1.2'

others:

compile 'de.jensd:fontawesomefx-emojione:3.1.1-9.1.2'
compile 'de.jensd:fontawesomefx-fontawesome:4.7.0-9.1.2'
compile 'de.jensd:fontawesomefx-icons525:4.2.0-9.1.2'
compile 'de.jensd:fontawesomefx-materialdesignfont:2.0.26-9.1.2'
compile 'de.jensd:fontawesomefx-materialicons:2.2.0-9.1.2'
compile 'de.jensd:fontawesomefx-octicons:4.3.0-9.1.2'
compile 'de.jensd:fontawesomefx-weathericons:2.0.10-9.1.2'

Finally, as posted in comments, the warning is just an indication that your FXML was created with a newer version that the JDK running it. It can be ignored.



标签： javafx scenebuilder java-10
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