JDA-Utilities1 is a library made for JDA2.
Unfortunately has the library entered a state of not being updated nor maintained anymore. While core-parts still function fine is the library lacking a lot of features that would make it better in the long run.
This page attempts to list all known alternatives for (parts of) JDA-Utilities.
If you know an alternative that isn't listed here, let me know in the JDA-Discord3, so that I can update this page.