Java3D: Illegal reflective access

I've been getting the familiar warning:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by javax.media.j3d.JoglPipeline
(file:/D:/jogl/j3dcore.jar) to method sun.awt.AppContext.getAppContext()

I'm running Windows 10 on an Intel Core i5 9300H, with Intel UHD
graphics 630.

OpenGL version: 4.5.0 - Build 25.20.100.6617

 > java --version
java 15.0.1 2020-10-20
Java(TM) SE Runtime Environment (build 15.0.1+9-18)
Java HotSpot(TM) 64-Bit Server VM (build 15.0.1+9-18, mixed mode, sharing)

I'm using the latest  JOGL  (2.4) and Java 3D (1.7).

My Java3D program runs, but there's an additional problem -- the 3D view
is clipped, so that part of the scene is not displayed. This problem
disappears when I switch back to Java 1.6, although I still get the
reflective access warning.

I've tried running JOGL 2.4. on its own with the JOGLQuad.java example,
and it compiles and runs without any problems or warnings.

Any suggestions on fixes?

Hello

Please provide a SSCCE so that we have a chance to reproduce your bug.

As far as I remember, Java3D itself still uses some methods in sun.awt.

Hello Andrew2563 (and everybody)

I have exactly the same problem with the following versions:

AdoptOpenJDK 11.0.9+11

Java3D-1.7.0

JogAmp-2.4.0

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.jogamp.java3d.JoglPipeline (file:/Users/lehuen/Desktop/CodeLab-MacOS-2101111334/ressources/libraries/java3d/j3dcore.jar) to method sun.awt.AppContext.getAppContext()
WARNING: Please consider reporting this to the maintainers of org.jogamp.java3d.JoglPipeline
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Has anyone found a solution to avoid these messages?

Jerome

Good news, I found the solution! While exploring this forum, especially the thread entitled "Where is the latest version of Java3D" I discovered that there was a 1.7.0-final version of Java3D while I had stayed at a 1.7.0-pre1 version. This version fixes the mentioned bug, but also the parameter in processStimulus(Iterator criteria) of the class Behavior, and other little things.

Thanks for maintaining Java3D!

Jerome

A more recent version of Java3D is mentioned in my tutorial:
http://gouessej.wordpress.com/2012/08/01/java-3d-est-de-retour-java-3d-is-back/

The only problem is that the latest build doesn't contain the Java documentation of the public APIs but as they haven't changed as far as I know (Phil, can you confirm please?), you can still use the Java documentation of Java3D 1.7.0-pre1 with Java3D 1.7.1.

Using java3D 1.7.1 and JogAmp 2.4.0-rc-20210111, our program works great in both Windows and Linux,
except the following messages come out in all platforms:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by org.jogamp.java3d.JoglPipeline$1 (file: /home/test/lib/j3dcore.jar) to method sun.awt.X11GraphicsDevice.getScreen()
WARNING: Please consider reporting this to the maintainers of org.jogamp.java3d.JoglPipeline$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release

Using the option --illegal-access=debug, we get the following stacktrace:

WARNING: Illegal reflective access by org.jogamp.java3d.JoglPipeline$1 (file:/home/test/lib/j3dcore.jar) to method sun.awt.X11GraphicsDevice.getScreen()
        at org.jogamp.java3d.JoglPipeline$1.run(JoglPipeline.java:8601)
        at java.base/java.security.AccessController.doPrivileged(Native Method)
        at org.jogamp.java3d.JoglPipeline.getScreen(JoglPipeline.java:8596)
        at org.jogamp.java3d.Screen3D.<init>(Screen3D.java:354)
        at org.jogamp.java3d.Canvas3D.<init>(Canvas3D.java:1123)
        at org.jogamp.java3d.Canvas3D.<init>(Canvas3D.java:1025)
        at org.jogamp.java3d.Canvas3D.<init>(Canvas3D.java:989)
         ...

Thank you very much.

The above message is removed by the following command option when booting java.  

  --add-exports=java.desktop/sun.awt=ALL-UNNAMED

Hi,

Unfortunately java3D doesn't work at all with Java 17 (Windows) because "An illegal reflective access operation has occurred", which is not any more allowed.
https://blogs.oracle.com/javamagazine/post/a-peek-into-java-17-continuing-the-drive-to-encapsulate-the-java-runtime-internals
Any suggestion?

Have you used --add-opens as I suggested in my tutorial?

Thank you for your quick response and hint.