On Mon, 17 Aug 2026 10:38:12 GMT, Pabulaner IV <[email protected]> wrote:
>> # Problem description >> >> When You create a JavaFX native application with *jpackage* for macOS You >> will run into an issue when trying to handle URIs. When Your application >> isn’t running and You have it registered for handling certain types of URIs >> it won’t receive the first URI. >> >> ## Here is a simple example: >> >> If You have a JavaFX application that handles URIs for example of the form >> *openurifx://your-content* and You have it installed with *jpackage* for >> macOS and now You try to handle an URI by running the following command: >> >> ``` open openurifx://hello-world ``` >> >> The application will open, but it won’t receive the above URI. If You call >> the same command after the application is already running, everything will >> work fine and the application will receive the URI. >> >> # Problem cause >> >> The cause of the problem is that when You build a JavaFX application and >> want to handle URIs You will have to combine JavaFX and AWT as AWT provides >> the URI handling capabilities. So the startup process is as follows: >> >> 1. JavaFX is initialized >> 2. JavaFX forwards the URI event to AWT >> 3. AWT is initialized >> 4. AWT is ready to handle URI events from JavaFX >> >> The issue is that the URI event is delivered before AWT can handle it and >> therefore is simple dropped. That’s why later URIs will be received and are >> handled properly. >> >> # Fix >> >> The fix is that JavaFX will call Toolkit.getDefaultToolkit() once before >> forwarding an URI event. This way JavaFX can be sure that AWT is initialized >> and able to handle the event correctly. The needed change takes place inside >> the native code in GlassApplication.m on the MacOS side and is solved with >> reflection. >> >> # Tests >> >> To test the error and the fix You can clone this repository: >> https://github.com/pabulaner/openurifx and checkout the branch *first-url*. >> There You will find a README.md with further instructions. >> >> PR inside the JDK: https://github.com/openjdk/jdk/pull/31791 >> >> - [x] I confirm that I make this contribution in accordance with the >> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). > > Pabulaner IV has updated the pull request incrementally with one additional > commit since the last revision: > > 8198549: Desktop.setOpenURIHandler() only receives event if application is > already launched Thanks for the reply! I implemented it and now AWT is initialized on the Java side, taking into account the possibility of a deadlock. I hope I implemented it the way You intended it, looking forward to Your feedback. Also what kind of test would You expect me to implement? Is it just copying the shell scripts I currently use and adapt them or something entirely different? Or maybe You have an example test that is already implemented in JFX and that I can take as a starting point. ------------- PR Comment: https://git.openjdk.org/jfx/pull/2203#issuecomment-6286228736
