Missing dependencies when building to jar with javaFx and intellij IDEA

Question

I am trying to build my project to a runnable jar in intellij IDEA; I am using javaFx for the GUI. I have successfully run/built the project multiple times through development but now I have created an artifact as followed in another stackoverflow post and this didn't include the javafx dependency even though I selected it to and it's in the build path, My message is:Error: JavaFX runtime components are missing, and are required to run this application even though I have added the dependencies in build and to the environment variables. Is there a solution?

Thanks

Please clarify what JDK and JavaFX versions do you use? – Olga Klisho Mar 24 '20 at 20:54 — Olga Klisho, Mar 24 '20 at 20:54

score 0 · Answer 1 · edited Mar 25 '20 at 20:52

I had the same error message when trying to run a JAR file created with JavaFX 11 in IntelliJ.

You're just missing two additional steps:

create an additional main method in a class which doesn't extend application and simply calls your real main method.
include the .so files in the JAR.

To do that in IntelliJ, it's:

File > Project Structure > Artifacts > click the "+" symbol > File > and then select all the .so files in the JavaFX folder.

score 0 · Answer 2 · answered May 22 '21 at 10:44

scenario:

you carefully follow "https://openjfx.io/openjfx-docs/#install-javafx", the "Non-modular with Maven"
you app does run inside IntelliJ
Yo cannot build a correct jar
You DON'T want to fight with

..EXPORT / .. --wtf .... : --module-path $PATH_TO_FX --add-modules

due to a known problem, (http://mail.openjdk.java.net/pipermail/openjfx-dev/2018-June/021977.html)

We have to use an helper class.

add the following class "Helper" and make it the "MAIN" class

public class Launcher {
```
 public static void main(String[] args) {
     App.main(args);
 }
```
}
change refs in maven from you actual name (if starting from javafx site sample.. ) to this Launcher class:

from:

org.example.App

to:

org.example.Launcher

add SHADE plug in to manven:

org.apache.maven.plugins maven-shade-plugin 3.2.0

     <executions>
         <execution>
             <phase>package</phase>
             <goals>
                 <goal>shade</goal>
             </goals>
             <configuration>
                 <shadedArtifactAttached>true</shadedArtifactAttached>
                 <shadedClassifierName>project-classifier</shadedClassifierName>
                 <outputFile>shade\${project.artifactId}.jar</outputFile>
                 <transformers>
                     <transformer implementation=
                                          "org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">

                         <!-- original:
                         <mainClass>org.example.App</mainClass>
                          -->

                         <mainClass>org.example.Launcher</mainClass>

                     </transformer>
                 </transformers>
             </configuration>
         </execution>
     </executions>
 </plugin>

to run in intelliJ, change main class in "Edit Configuration" to "Launcher"
... run "mvn clean!" :)

PS: You can see ti in action here:

https://github.com/ingconti/SampleJavaFxWithResize

Missing dependencies when building to jar with javaFx and intellij IDEA

2 Answers2