Custom macOS application bundle requires Rosetta even through it shouldn't

Since there is currently no [DrJava](http://www.drjava.org/) application bundle for macOS, I thought I could be the one to make it because I want to use it anyway. From just searching on the internet I made the following application bundle:

- DrJava.app
  - MacOS
    DrJava # this is a shell script that runs java -jar drjava.jar
    drjava.jar
  - Resources
    DrJavaIcon.png
    DrJavaSearchIcon.png
  Info.plist

And my Info.plist looks like:

CFBundleName
      DrJava
      CFBundleExecutable
      DrJava
      CFBundleIcon
      DrJavaIcon.png

The issue with this is that when I try to run the app, it tells me that I need to install Rosetta to do so. However, this is simply not true. I can run ./DrJava and it will run perfectly fine without rosetta. My current guess is that there's a key in Info.plist that will indicate the architectures that are compatible with this bundle. But I haven't been able to find any such thing. PS: Due to personal reasons, I don't want to make an Apple ID. As such I'm not trying to not install Xcode for as long as possible. I understand that this will make things more difficult, but I am committed.