I've been trying to resuscitate some old code that used some functions I wrote in ABCL into a larger Java system (if anyone cares, the PRISM probabilistic model checker).

I'm getting the following error message:

; Compiling jar:file:///Users/rpg/projects/matrics/prism/prism/lib/abcl-contrib.jar!/asdf-jar/package.lisp ...
; (DEFPACKAGE #:ASDF-JAR ...)
; Wrote /Users/rpg/.cache/common-lisp/abcl-1.9.2-fasl43-macosx-arm64/Users/rpg/projects/matrics/prism/prism/lib/abcl-contrib.jar/asdf-jar/package-tmp1FUW82KK.abcl (0.022 seconds)
; Compiling jar:file:///Users/rpg/projects/matrics/prism/prism/lib/abcl-contrib.jar!/asdf-jar/asdf-jar.lisp ...
; (IN-PACKAGE #:ASDF-JAR)
; (DEFUN ADD-SYSTEM-FILES-TO-MAPPING! ...)
; (DEFUN SYSTEMS->HASH-TABLE ...)
; (DEFUN PACKAGE ...)
; (DEFUN ALL-FILES ...)
; (DEFUN RESOLVE-SYSTEM-OR-FEATURE ...)
; (DEFUN DEPENDENT-SYSTEMS ...)
; (DEFUN ARCHIVE-RELATIVE-PATH ...)
; (DEFUN TMPDIR ...)
; (DEFUN ADD-TO-ASDF ...)
; (DEFUN PREPARE-FOR-WAR ...)
; Wrote /Users/rpg/.cache/common-lisp/abcl-1.9.2-fasl43-macosx-arm64/Users/rpg/projects/matrics/prism/prism/lib/abcl-contrib.jar/asdf-jar/asdf-jar-tmpLI46SF5K.abcl (0.206 seconds)
#<THREAD "main" native {753AACF}>: Debugger invoked on condition of type TYPE-ERROR
  The value #<jdk.internal.loader.ClassLoaders$AppClassLoader jdk.internal.loader.ClassLoaders.... {6470078D}> is not of type LIST.
[1] CL-USER(1): Exception trying to start ABCL PRISM!

backtrace: gist here

This is Java 23, and I suspect I should be trying an earlier version, but I'm not sure what one.

I'm really barely literate in Java, which is why I wrote the code in question in ABCL instead of Java, so I apologize if this question is just plain stupid.

Thanks for any clues