Different problems on first use of plugin with javafx:compile and javafx:jlink

[treimers]

Hello,

I tried to follow the instructions from the main page in order to compile, run and link a JavaFX project with this Maven plugin.

I started with my own application and ran into problems. So I switched to HelloFX but the problems still remain.

First of all let's talk about my environment

• HW: Mac Book Pro
• OS: OS X El Captian (10.11.6)
• Java: openjdk version "15" 2020-09-15 OpenJDK Runtime Environment AdoptOpenJDK (build 15+36) OpenJDK 64-Bit Server VM AdoptOpenJDK (build 15+36, mixed mode, sharing)
• Maven: Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f) Maven home: /Users/treimers/Programme/apache-maven-3.6.3 Java version: 15, vendor: AdoptOpenJDK, runtime: /Library/Java/JavaVirtualMachines/adoptopenjdk-15.jdk/Contents/Home Default locale: de_DE, platform encoding: UTF-8 OS name: "mac os x", version: "10.11.6", arch: "x86_64", family: "mac"

The documentation states

Create a new Maven project, use an existing one like HelloFX, or use an archetype. The project can be modular or non-modular.

When I try to compile the HelloFX app with

mvn javafx:compile

I am getting an error

[ERROR] Could not find goal 'compile' in plugin org.openjfx:javafx-maven-plugin:0.0.4 among available goals jlink, run -> [Help 1]

So I tried to use

mvn compile

instead. This worked and I could start the app by

mvn javafx:run

But jlink did not work

mvn javafx:jlink ... [ERROR] Failed to execute goal org.openjfx:javafx-maven-plugin:0.0.4:jlink (default-cli) on project hellofx: Error: jlink requires a module descriptor -> [Help 1]

What might I am doing wrong? Any help appreciated, thanks in advance.

[betanzos]

When I try to compile the HelloFX app with

mvn javafx:compile

I am getting an error

[ERROR] Could not find goal 'compile' in plugin org.openjfx:javafx-maven-plugin:0.0.4 among available goals jlink, run -> [Help 1]

Yes, this is a mistake in documentation. The goal javafx:compile was removed from current version (0.0.4). mvn compile could be use instead.

So I tried to use

mvn compile

instead. This worked and I could start the app by

mvn javafx:run

In fact, we don't need to run mvn compile before javafx:run, but we do when running javafx:jlink. Next version will fix this (see merged PR #69)

But jlink did not work

mvn javafx:jlink ... [ERROR] Failed to execute goal org.openjfx:javafx-maven-plugin:0.0.4:jlink (default-cli) on project hellofx: Error: jlink requires a module descriptor -> [Help 1]

What might I am doing wrong?

In order to run a non-modular application you need to create a launcher class which no extend from Application (more info can be found in the JavaFX official documentation in section Non-modular application).

public class Launcher {
    public static void main(String[] args) {
        HelloApp.runApp(args);
    }
}

public class HelloApp extends Application {

    @Override
    public void start(Stage stage) {
        // here the code
    }

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

[abhinayagarwal]

Documentation on compile has been fixed with #83