Fatal Exception when executing javafx:run

[justinhschaaf]

Hello! I've been attempting to add the JavaFX plugin and dependencies to a project I've been working on; however, whenever I run my program, I am faced with a fatal error that prevents the JVM from starting:

Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Unrecognized option: --module-path

The full log is available here. I'm using Java 11.0.2 and javafx-maven-plugin 0.0.2.

[tiainen]

The error message indicates that the JVM being used is still Java 8, because the --module-path option has been introduced with Java 9. Make sure that you configure your maven project to build with Java 11 or later.

[justinhschaaf]

It does appear that maven is using Java 8 rather than Java 11; however, my IDE's settings show that maven is using Java 11.

[jperedadnr]

As explained here: https://openjfx.io/openjfx-docs/#IDE-Intellij, Maven sections, if you run from your IDE, the plugin might pick the Java_Home it is using (for instance IntelliJ runs on JDK 1.8), so you can add this to the plugin:

<configuration>
    <executable>/path/to/jdk-11/bin/java</executable>
</configuration>

Anyway, this shouldn't be necessary, if the project has SDK and language level set to 11, the platform sdk is 11, or if you run from a terminal with Java_Home set to 11.

If none of that works, please detail your IDE and OS versions.

[justinhschaaf]

Adding the configuration worked for me. Thank you very much!

[mkpaz]

For those who don't want to spoil pom.xml with workstation related paths. There are another option. If you're defining current JVM version via JAVA_HOME env variable, you can just overwrite it in IDE settings.

P.S. It's rather confusing that OpenJFX ignores IDE SDK settings and uses JRE from path env variable instead.

[jperedadnr]

@mkpaz If you think this can be improved, please file a new issue.