This is a playground to use maven-jlink-plugin with JavaFX application.
mvn jlink:jlink
Using v3.1.0 of the plugin, mvn jlink:jlink fails with the following exception:
Error: automatic module cannot be used with jlink: javafx.graphicsEmpty
Plugin logs have the following lines in them:
[INFO] --- maven-jlink-plugin:3.1.0:jlink (default-cli) @ hellofx ---
[INFO] -> module: javafx.base ( ~/.m2/repository/org/openjfx/javafx-base/13/javafx-base-13-linux.jar )
[INFO] -> module: javafx.graphicsEmpty ( ~/.m2/repository/org/openjfx/javafx-graphics/13/javafx-graphics-13.jar )
[INFO] -> module: hellofx ( ~/Documents/git/samples/IDE/IntelliJ/Modular/Maven/hellofx/target/classes )
[INFO] -> module: javafx.baseEmpty ( ~/.m2/repository/org/openjfx/javafx-base/13/javafx-base-13.jar )
[INFO] -> module: javafx.controls ( ~/.m2/repository/org/openjfx/javafx-controls/13/javafx-controls-13-linux.jar )
[INFO] -> module: javafx.graphics ( ~/.m2/repository/org/openjfx/javafx-graphics/13/javafx-graphics-13-linux.jar )
[INFO] -> module: javafx.fxml ( ~/.m2/repository/org/openjfx/javafx-fxml/13/javafx-fxml-13-linux.jar )
[INFO] -> module: javafx.fxmlEmpty ( ~/.m2/repository/org/openjfx/javafx-fxml/13/javafx-fxml-13.jar )
[INFO] -> module: javafx.controlsEmpty ( ~/.m2/repository/org/openjfx/javafx-controls/13/javafx-controls-13.jar )
JavaFX tries to be platform independent by hiding the platform specific jars behind empty dependencies. If we add the following dependency to an application running on Linux:
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-graphics</artifactId>
<version>13</version>
</dependency>
It will be resolved into javafx-graphics-13.jar and javafx-graphics-13-linux.jar. The former is an empty jar with Automatic-Module-Name set as javafx.graphicsEmpty. More information on this can be found here: http://mail.openjdk.java.net/pipermail/openjfx-dev/2018-August/022313.html
Most Java(FX) applications with a main class will add a launcher configuration to the plugin. If a launcher is found, maven-jlink-plugin can skip adding the entire module-path to the add-modules list and add only the base module to it. This is how javafx-maven-plugin's jlink goal works.
This approach may have some side-effects and needs to be explored.
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