Thank you a lot, this is completely on topic! The file in the archive unfortunately can't be built easily. The Java files do not match each other, and even after trying to fix this, I still get build error with several NS* objects. These class exist in the jnimacnative.jar but they do not provide the constructors used by MainOneShot.java (and source code of NS* does not appear in the archive).
That would be easier to get information from the Oracle team about when [the bug](https://bugs.openjdk.org/browse/JDK-8289573) can be fixed in the JVM :) Regards, Martin Envoyé avec la messagerie sécurisée [Proton Mail](https://proton.me/). ------- Original Message ------- Le mercredi 15 mars 2023 à 13:07, Michael Hall <[email protected]> a écrit : >> On Mar 15, 2023, at 4:34 AM, Martin Pernollet >> <[email protected]> wrote: >> >> My answer is not published because I sent a too big image. Please find it >> below without image : >> >> We access OpenGL through native bindings generated by JExtract, from project >> Panama. These bindings are packaged as a library visible here >> (https://gitlab.com/jzy3d/panama-gl). >> >> The -XstartOnFirstThread option is needed by OpenGL on macOS as OpenGL >> invocation MUST be performed from macOS main thread. >> >> Not using this option on macOS lead to an error >> >> java[92246:2751169] GLUT Fatal Error: internal error: >> NSInternalInconsistencyException, reason: NSWindow drag regions should only >> be invalidated on the Main Thread! >> >> Using this option on macOS lead to a freeze in LockSupport.park() (see the >> attached image for the complete call stack) >> >> JOGL has a smart way of solving this with a class allowing to push Runnables >> to macOS main thread >> (https://github.com/jzy3d/jogl/blob/ecf6e499d3b582d651a28693c871ca14d6e8c991/src/nativewindow/classes/jogamp/nativewindow/macosx/OSXUtil.java#L305) >> based on ObjectiveC code from Apple's AppKit framework >> (https://github.com/jzy3d/jogl/blob/ecf6e499d3b582d651a28693c871ca14d6e8c991/src/nativewindow/native/macosx/OSXmisc.m#L1167). >> This allows running on Swing without having to use the -XstartOnFirstThread. >> >> However JOGL has several issues, one of these being that it freezes JVM>=19 >> as soon as it appears in the classpath (for other reasons than the one >> discussed above). >> >> This issue is a real pain for anyone publishing applications involving >> OpenGL in Swing - whatever the OpenGL binding framework. Not solving the >> issue would make project Panama unusable for computer graphics. >> >> Regards, >> >> Martin > > Apologies if not of interest but it seems somewhat on-topic. I have some very > old code that might be of use? > > http://mikehall.pairserver.com/javasrc.html#onmain > > OnMain: not a bad place to have your Cocoa Java served up - 10/14/06 > > NSAppleScript execution and possibly other Cocoa Java classes should be run > on the AppKit 'main' thread. OnMain.dmg provides a small JNI stub to do a > callback to java on the main thread that should provide this. > > 10/28/2006 - More new functionality. Added Some JNI, generated of course, > execution of the AppleScript related > > 10/22/2006 - Added some additional AppleScript testing and a couple execution > option switches. More or less documented in the README file. > > http://mikehall.pairserver.com/OnMain.dmg
