Getting started instructions for modular NetBeans project produce an invalid image about openjfx-docs

[jperedadnr]

You can try the sample linked at that section: https://github.com/openjfx/samples/tree/master/IDE/NetBeans/Modular/Java

and see if you still have the same issue. Probably you are missing some configuration step.

[vic0824]

The sample project downloaded from github works.
I have compared the project files and found a crucial difference.
In the project.properties file of the sample project from github, the run.modulepath property has the following value:

run.modulepath=\
    ${libs.JavaFXMODS11.classpath}:\
    ${javac.modulepath}:\
    ${build.modules.dir}

whereas the run.modulepath property generated by NetBeans following the instructions in the tutorial is:

run.modulepath=\
    ${javac.modulepath}:\
    ${build.modules.dir}:\
    ${libs.JavaFXMODS11.classpath}

Apparently, the order in which the paths are specified is important: if I move ${libs.JavaFXMODS11.classpath} at the beginning of the string, the packaging step generates a correct image.
Given that this file is generated automatically by NetBeans, I wonder how it is possible that the order is different in the sample project.

[jperedadnr]

Yes, the order is important, indeed. However, the order can be modified when you add the library.

See updated document https://openjfx.io/openjfx-docs/#IDE-NetBeans, section Modular from IDE:

Add this library to NetBeans -> Properties -> Libraries -> Run -> Modulepath and place it on top.

and sample:

run.modulepath=\
    ${libs.JavaFXMODS12.classpath}:\
    ${javac.modulepath}:\
    ${build.modules.dir}