As I didn't find anything on the forum regarding this error and it took me a while to solve it, I'm posting this here. I was running a B4J program from the IDE on Linux (under wine) and ran into this exception when trying to execute a shell script with the jShell library, like:
I fixed it by
1. creating this script to run the jar natively, i.e. not from wine (change the paths to reflect your setup):
2. copying file 'release_java_modules.txt' from the B4J installation directory to the directory that contains the above script
Note:
- The script works for both console and UI programs.
- I added '-Djdk.gtk.version=2' some years ago to avoid the warning message 'XSetErrorHandler() called with a GDK error trap pushed. Don't do that.'. I found this on https://stackoverflow.com/questions/55446534/how-to-fix-java22494-gdk-warning ; it may be unnecessary.
B4X:
Dim shl As Shell
shl.Initialize("shl", "myfile.sh", Array As String("a", "b", "c"))
shl.RunSynchronous(-1) ' <----- This throws the exception; the same happened when using shl.RunI fixed it by
1. creating this script to run the jar natively, i.e. not from wine (change the paths to reflect your setup):
B4X:
#!/bin/bash
java @release_java_modules.txt --module-path /home/me/java/jdk-14.0.1/javafx/lib --add-modules ALL-MODULE-PATH -Djdk.gtk.version=2 -jar /home/me/path/to/Objects/my.jarNote:
- The script works for both console and UI programs.
- I added '-Djdk.gtk.version=2' some years ago to avoid the warning message 'XSetErrorHandler() called with a GDK error trap pushed. Don't do that.'. I found this on https://stackoverflow.com/questions/55446534/how-to-fix-java22494-gdk-warning ; it may be unnecessary.