I have build an executable javaFX fat jar using java 17 and javafx 18:
The JavaFXLauncher class calls the Main class which is necessary so that the executable JavaFX jar will work. It looks like this:
public class Main extends Application {
@Override
public void start(Stage stage) {
VBox vBox = new VBox();
Button okButton = new Button("OK");
okButton.setOnAction(e -> new Alert(Alert.AlertType.INFORMATION).showAndWait());
TextField searchTextField = new TextField();
vBox.getChildren().addAll(searchTextField);
ContextMenu contextMenu = new ContextMenu();
Trie<String, Integer> trie = new PatriciaTrie<>();
trie.put("calorimetru", 0);
trie.put("calamar", 0);
trie.put("abecedar", 0);
trie.put("calorie", 0);
searchTextField.setOnKeyTyped(e -> {
TextField self = (TextField) e.getSource();
if (StringUtils.isEmpty(self.getText())) {
contextMenu.hide();
return;
}
Set<String> items = trie.prefixMap(self.getText()).keySet();
if (!items.isEmpty()) {
Bounds boundsInScreen = self.localToScreen(self.getBoundsInLocal());
int height = (int) self.getHeight();
contextMenu.getItems().clear();
items.forEach(item -> contextMenu.getItems().add(new MenuItem(item)));
contextMenu.show(self, boundsInScreen.getMinX(), boundsInScreen.getMinY() + height);
}
});
Scene scene = new Scene(vBox, 500, 500, Color.WHEAT);
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
I have built a native image using native-image like this:
c:\Users\adragomir\IdeaProjects\learnLambda\target>native-image.cmd -jar learnLambda-1.0.jar learn.lambda.JavaFXLauncher --no-fallback
========================================================================================================================
GraalVM Native Image: Generating 'learn.lambda.JavaFXLauncher' (executable)...
========================================================================================================================
[1/7] Initializing... (26,7s @ 0,14GB)
Version info: 'GraalVM 22.1.0 Java 17 CE'
C compiler: cl.exe (microsoft, x64, 19.32.31332)
Garbage collector: Serial GC
[2/7] Performing analysis... [******] (24,5s @ 0,58GB)
4.048 (75,16%) of 5.386 classes reachable
5.312 (52,92%) of 10.037 fields reachable
17.728 (44,22%) of 40.090 methods reachable
43 classes, 0 fields, and 526 methods registered for reflection
62 classes, 54 fields, and 51 methods registered for JNI access
[3/7] Building universe... (2,1s @ 0,85GB)
[4/7] Parsing methods... [*] (1,7s @ 1,15GB)
[5/7] Inlining methods... [****] (2,1s @ 1,20GB)
[6/7] Compiling methods... [****] (18,9s @ 2,68GB)
[7/7] Creating image... (3,7s @ 0,60GB)
6,43MB (40,03%) for code area: 10.265 compilation units
8,43MB (52,52%) for image heap: 2.558 classes and 120.816 objects
1,20MB ( 7,45%) for other data
16,06MB in total
------------------------------------------------------------------------------------------------------------------------
Top 10 packages in code area: Top 10 object types in image heap:
743,04KB java.util 1,29MB byte[] for code metadata
376,80KB java.lang 1,14MB byte[] for general heap data
359,01KB javafx.css 1,12MB java.lang.String
346,56KB com.oracle.svm.jni 929,29KB java.lang.Class
276,85KB java.text 725,44KB byte[] for java.lang.String
238,47KB com.oracle.svm.core.reflect 403,36KB java.util.HashMap$Node
238,30KB java.util.regex 316,25KB com.oracle.svm.core.hub.DynamicHubCompanion
205,60KB java.util.concurrent 247,83KB java.util.concurrent.ConcurrentHashMap$Node
149,52KB java.math 221,23KB java.lang.String[]
148,15KB com.oracle.svm.core.code 188,09KB java.util.HashMap$Node[]
... 179 additional packages ... 1052 additional object types
(use GraalVM Dashboard to see all)
------------------------------------------------------------------------------------------------------------------------
2,6s (3,2% of total time) in 22 GCs | Peak RSS: 3,73GB | CPU load: 4,36
------------------------------------------------------------------------------------------------------------------------
Produced artifacts:
c:\Users\adragomir\IdeaProjects\learnLambda\target\learn.lambda.JavaFXLauncher.exe (executable)
c:\Users\adragomir\IdeaProjects\learnLambda\target\awt.dll (jdk_lib)
c:\Users\adragomir\IdeaProjects\learnLambda\target\java.dll (jdk_lib_shim)
c:\Users\adragomir\IdeaProjects\learnLambda\target\jvm.dll (jdk_lib_shim)
c:\Users\adragomir\IdeaProjects\learnLambda\target\learn.lambda.JavaFXLauncher.build_artifacts.txt
========================================================================================================================
Finished generating 'learn.lambda.JavaFXLauncher' in 1m 22s.
Everything seems fine but when I try to run the exe I get:
$ ./learn.lambda.JavaFXLauncher.exe
Exception in thread "main" java.lang.RuntimeException: java.lang.ClassNotFoundException: learn.lambda.Main
at javafx.application.Application.launch(Application.java:314)
at learn.lambda.Main.main(Main.java:67)
at learn.lambda.JavaFXLauncher.main(JavaFXLauncher.java:5)
Caused by: java.lang.ClassNotFoundException: learn.lambda.Main
at java.lang.Class.forName(DynamicHub.java:1121)
at javafx.application.Application.launch(Application.java:302)
... 2 more
I am using --no-fallback because I don't want to be dependent on a jvm, so I just want to run the exe by itself.
Do you guys have some idea on what could be wrong?
Regards,
