FXApps: Creating Fat JARs for JavaFX Applications
source link: http://fxapps.blogspot.com/2020/11/creating-fat-jars-for-javafx.html
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Creating Fat JARs for JavaFX Applications
A FAT JAR is a type of Java application distribution where a single JAR contains all other dependencies, so no additional file is required to run the JAR besides the Java Virtual Machine.
For any Java maven based application, creating a FAR JAR could be solved by using Maven Shade Plugin. However, creating FAT Jars using JavaFX may be a challenge because JavaFX uses modules.
Fortunately this subject was intensely discussed in the WEB, and a good explanation and a solution was provided by Jose Pereda in this StackOverflow response.
In this post I want to briefly share the steps to make a FAT JAR and post an example on my github so I can point others to check the example.
How to create a FAT JAR for a JavaFX application?
1- Create a main class that will run your application. This class must have the main method and call your actual application static launch method;
2- Add the Shade Plugin to your project. For those using Gradle notice that Jose Pereda also provided an answer about it in Stack Overflow;
3- In the shade plugin configuration make sure you are setting the Main class to be the one created in step 1.
That's basically all you need. If i is not clear you can check my sample project in github. The three files, App.java, Main.java and pom.xml can be checked below.
package org.fxapps.javafx.fatjar;
import javafx.animation.Animation; import javafx.animation.FadeTransition; import javafx.application.Application; import javafx.scene.Scene; import javafx.scene.control.Label; import javafx.scene.effect.InnerShadow; import javafx.scene.layout.StackPane; import javafx.scene.paint.Color; import javafx.scene.text.Font; import javafx.scene.text.FontWeight; import javafx.stage.Stage; import javafx.stage.StageStyle; import javafx.util.Duration;
public class App extends Application {
public static void main(String[] args) { launch(); }
@Override public void start(Stage stage) throws Exception {
var lblHello = new Label("Hello World!"); var fd = new FadeTransition(Duration.millis(900), lblHello);
// Label Setup lblHello.setFont(Font.font(Font.getDefault().getFamily(), FontWeight.BOLD, 60)); lblHello.setEffect(new InnerShadow()); lblHello.setTextFill(Color.GOLD); lblHello.setOnMouseClicked(e -> System.exit(0));
// Animation Setup fd.setAutoReverse(true); fd.setFromValue(1.0); fd.setToValue(0.2); fd.setCycleCount(Animation.INDEFINITE); fd.play();
stage.setScene(new Scene(new StackPane(lblHello))); stage.initStyle(StageStyle.UNDECORATED); stage.show();
}
}
package org.fxapps.javafx.fatjar;
// This is the Main used by the shade plugin. public class Main {
public static void main(String[] args) { App.main(args); } }
<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>org.fxapps.javafx.fatjar</groupId> <artifactId>fatjar-javafx</artifactId> <version>0.0.1-SNAPSHOT</version> <name>Fat Jar JavaFX</name> <description>Project to build a JavaFX 11+ Fat JAR.</description>
<properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <maven.compiler.release>11</maven.compiler.release> <maven.compiler.source>11</maven.compiler.source> <maven.compiler.target>11</maven.compiler.target> <javafx.version>11.0.2</javafx.version> <javafx.plugin.version>0.0.4</javafx.plugin.version> <main.class>org.fxapps.javafx.fatjar.Main</main.class> </properties>
<dependencies> <dependency> <groupId>org.openjfx</groupId> <artifactId>javafx-base</artifactId> <version>${javafx.version}</version> </dependency> <dependency> <groupId>org.openjfx</groupId> <artifactId>javafx-graphics</artifactId> <version>${javafx.version}</version> </dependency> <dependency> <groupId>org.openjfx</groupId> <artifactId>javafx-controls</artifactId> <version>${javafx.version}</version> </dependency> </dependencies>
<build> <plugins> <plugin> <groupId>org.openjfx</groupId> <artifactId>javafx-maven-plugin</artifactId> <version>${javafx.plugin.version}</version> <configuration> <mainClass>${main.class}</mainClass> </configuration> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-shade-plugin</artifactId> <version>3.2.0</version> <executions> <execution> <phase>package</phase> <goals> <goal>shade</goal> </goals> <configuration> <transformers> <transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer"> <mainClass>${main.class}</mainClass> </transformer> </transformers> </configuration> </execution> </executions> </plugin> </plugins> </build> </project>
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