jpackage exe does not work with PostgreSQL database connection in JavaFX application

Question

I have a JavaFX application that connects to a PostgreSQL database using the driver postgresql-42.6.0.jar. I want to generate an exe for my application using jpackage, but the exe does not work properly. It either does not open at all, or it opens but does not show the content of the panes that use the database connection. The jar of my application works fine, but the exe does not.

I tried to generate the exe using the following command:

jpackage -t exe --name "MyApp" --app-version 1.0 --input . --dest . --main-jar "jmr_sports.jar" --icon "C:\Users\Windows\Desktop\JMR Sports\icono.ico" --module-path "C:\Program Files\Java\javafx-jmods-17.0.9" --add-modules javafx.controls,javafx.graphics,javafx.fxml,javafx.base --java-options "-cp lib/postgresql-42.6.0.jar" --win-shortcut --win-menu

I also checked the configuration file MyApp.cfg and made sure that the app.classpath parameter included both the jar of my application and the jar of the driver. I expected the exe to work as the jar of my application, showing the content of the panes that use the database connection.

Another detail of my problem is that the application behaves differently depending on whether I add the --java-options "-cp lib/postgresql-42.6.0.jar" parameter or not. Without this parameter, the application opens, but the panes that rely on the database connection are blank. With this parameter, the application does not open at all. I don't understand why this happens. I'm sure the problem is related to the database connection, because I've tried removing the code that uses the database connection, and then the panes show the content that doesn't depend on the database.

Update

I have activated the win-console option of jpackage to see the error messages:

jpackage -t exe --name "MyApp2" --app-version 1.0 --input ./dist --dest ./exe --main-jar "jmr_sports.jar" --icon "C:\Users\Windows\Desktop\JMR Sports\icono.ico" --module-path "C:\Program Files\Java\javafx-jmods-17.0.9" --add-modules javafx.controls,javafx.graphics,javafx.fxml,javafx.base --java-options "-cp lib/postgresql-42.6.0.jar" --win-shortcut --win-menu --win-console

I get the following error:

C:\Program Files\MyApp2>MyApp2.exe
Error: Could not find or load main class application.Main
Caused by: java.lang.ClassNotFoundException: application.Main