How to convert JavaFX project to Maven correctly?

Question

I wrote JavaFx project in Eclipse IDE, it worked correctly.

Once I converted it into Maven project, my FMXL files stopped opening. However, if I create new FXML files and put them in the same folders, everything works.

Is there any way to run my Maven project without recreating all my FXML files?

I've already tried changing paths to my FXML files in code, moving FXMLs to src/main/resources package or simply copying the code from old FXMLs to the new ones, but nothing worked.

All FXMLs I created in SceneBuilder and haven't changed the version of this program throughout the process.

I'm loading my FXMLs using the following method:

private void showMainPage() throws IOException {
FXMLLoader loader = new FXMLLoader();
loader.setLocation(Main.class.getResource("view/MainView.fxml"));
mainLayout = loader.load();
Scene scene = new Scene(mainLayout);
primaryStage.setScene(scene);
primaryStage.show();
}

my pom.xml file

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>fx</groupId>
  <artifactId>maven</artifactId>
  <version>0.0.1-SNAPSHOT</version>
  <name>fxMaven</name>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>11</maven.compiler.source>
    <maven.compiler.target>11</maven.compiler.target>
</properties>
<dependencies>
    <dependency>
        <groupId>org.openjfx</groupId>
        <artifactId>javafx-controls</artifactId>
        <version>17</version>
    </dependency>
    <!-- https://mvnrepository.com/artifact/org.openjfx/javafx-fxml -->
<dependency>
    <groupId>org.openjfx</groupId>
    <artifactId>javafx-fxml</artifactId>
    <version>17</version>
</dependency>
    <!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java -->
<dependency>
    <groupId>mysql</groupId>
    <artifactId>mysql-connector-java</artifactId>
    <version>8.0.26</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.xerial/sqlite-jdbc -->
<dependency>
    <groupId>org.xerial</groupId>
    <artifactId>sqlite-jdbc</artifactId>
    <version>3.36.0.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.mchange/c3p0 -->
<dependency>
    <groupId>com.mchange</groupId>
    <artifactId>c3p0</artifactId>
    <version>0.9.5.5</version>
</dependency>
</dependencies>
<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-compiler-plugin</artifactId>
            <version>3.8.0</version>
            <configuration>
                <release>11</release>
            </configuration>
        </plugin>
        <plugin>
            <groupId>org.openjfx</groupId>
            <artifactId>javafx-maven-plugin</artifactId>
            <version>0.0.6</version>
            <executions>
                <execution>
                    <!-- Default configuration for running -->
                    <!-- Usage: mvn clean javafx:run -->
                    <id>default-cli</id>
                    <configuration>
                        <mainClass>ru.jfxreselection.App</mainClass>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>
    <resources>
      <resource>
          <directory>src/main/java</directory>
              <includes>
                  <include>**/*.fxml</include>
              </includes>
      </resource>
  </resources>   
</build>

the error I get trying to run with old .FXML files

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:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:465) at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:364) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:567) at java.base/sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:1071) Caused by: java.lang.RuntimeException: Exception in Application start method at javafx.graphics/com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:901) at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication$2(LauncherImpl.java:196) at java.base/java.lang.Thread.run(Thread.java:831) Caused by: javafx.fxml.LoadException: /C:/Users/Tormo/eclipse-workspace/rslFxNewMaven/target/classes/reselection/view/MainView.fxml:48 at javafx.fxml/javafx.fxml.FXMLLoader.constructLoadException(FXMLLoader.java:2707) at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2685)
at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2548)
at javafx.fxml/javafx.fxml.FXMLLoader.load(FXMLLoader.java:2516) at rslFxNewMaven/reselection.Main.showMainPage(Main.java:28) at rslFxNewMaven/reselection.Main.start(Main.java:22) at javafx.graphics/com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$9(LauncherImpl.java:847) at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runAndWait$12(PlatformImpl.java:484) at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$10(PlatformImpl.java:457) at java.base/java.security.AccessController.doPrivileged(AccessController.java:391) at javafx.graphics/com.sun.javafx.application.PlatformImpl.lambda$runLater$11(PlatformImpl.java:456) at javafx.graphics/com.sun.glass.ui.InvokeLaterDispatcher$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$3(WinApplication.java:184) ... 1 more Caused by: java.lang.reflect.InaccessibleObjectException: Unable to make private void reselection.view.MainViewController.goDacSearch() throws java.io.IOException accessible: module rslFxNewMaven does not "opens reselection.view" to module javafx.fxml at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:357) at java.base/java.lang.reflect.AccessibleObject.checkCanSetAccessible(AccessibleObject.java:297) at java.base/java.lang.reflect.Method.checkCanSetAccessible(Method.java:199) at java.base/java.lang.reflect.Method.setAccessible(Method.java:193)
at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.addAccessibleMethods(FXMLLoader.java:3611) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor$1.run(FXMLLoader.java:3543) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor$1.run(FXMLLoader.java:3536) at java.base/java.security.AccessController.doPrivileged(AccessController.java:312) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.addAccessibleMembers(FXMLLoader.java:3535) at javafx.fxml/javafx.fxml.FXMLLoader$ControllerAccessor.getControllerMethods(FXMLLoader.java:3494) at javafx.fxml/javafx.fxml.FXMLLoader$Element.getControllerMethodHandle(FXMLLoader.java:573) at javafx.fxml/javafx.fxml.FXMLLoader$Element.processEventHandlerAttributes(FXMLLoader.java:610) at javafx.fxml/javafx.fxml.FXMLLoader$ValueElement.processEndElement(FXMLLoader.java:781) at javafx.fxml/javafx.fxml.FXMLLoader.processEndElement(FXMLLoader.java:2924) at javafx.fxml/javafx.fxml.FXMLLoader.loadImpl(FXMLLoader.java:2639)
... 13 more Exception running application reselection.Main

Stack traces are easier to read if you post them formatted as code rather than comments. — jewelsea
– jewelsea, Commented Jan 13, 2022 at 20:44

jewelsea · Accepted Answer · 2022-01-13 20:54:19Z

2

This is unrelated to Maven, it is an access error caused by incorrect configuration of the Java module system for your application.

The error message tells you what is wrong:

module rslFxNewMaven does not "opens reselection.view" to module javafx.fxml

Study -> java modules.

Add the following line to your module-info.java:

opens reselection.view to javafx.fxml;

answered Jan 13, 2022 at 20:54

jewelsea

160k15 gold badges383 silver badges425 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

vvslava Over a year ago

Thanks a lot! Now it works. Sorry for the stacktrace format, it's my first post here :)

Collectives™ on Stack Overflow

How to convert JavaFX project to Maven correctly?

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related