Earlier today I was able to load cffi by renaming mvn.cmd to mvn.bat.

Later on, I am unable to, and I would appreciate a fresh pair of eyes.

(ABCL/Java info:

C:\Users\977315>java -jar "c:\mv-program-files\abcl-bin-1.4.0\abcl.jar"

Armed Bear Common Lisp 1.4.0

Java 1.8.0_112 Oracle Corporation

Java HotSpot(TM) 64-Bit Server VM

Low-level initialization completed in 0.243 seconds.

Startup completed in 3.812 seconds.

Loading C:\Users\977315\.abclrc completed in 13.729 seconds.)

The error seems to happen in abcl-cffi.lisp.

mvn.bat is visible:

(uiop/run-program:run-program '("where" "mvn.bat") :output :string) gives

"C:\\Program Files\\apache-maven-3.3.9\\bin\\mvn.bat

NIL

I don't know how to narrow down the search for the culprit. It makes me think

that maybe the error message is not correct - that there is a different underlying

cause. Is there some direct way I can test maven+aether? I now next to nothing

about Java, and looking at abcl-cffi, I did not find anything obvious.

Thanks for your help and patience,

Backtrace follows.

CL-USER(4): (asdf:load-system :cffi)

; Compiling C:/mv-program-files/my-lisp-libraries/cffi/src/cffi-abcl.lisp ...

Using probed value of abcl-contrib:

'C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar'.

Added jar:file:C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar!/quicklisp/ to ASDF.

Added jar:file:C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar!/mvn/ to ASDF.

Added jar:file:C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar!/jss/ to ASDF.

Added jar:file:C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar!/jfli/ to ASDF.

Added jar:file:C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar!/asdf-jar/ to ASDF.

Added jar:file:C:/mv-program-files/abcl-bin-1.4.0/abcl-contrib.jar!/abcl-asdf/ to ASDF.

java.lang.ExceptionInInitializerError

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)

at java.lang.reflect.Constructor.newInstance(Unknown Source)

at java.lang.Class.newInstance(Unknown Source)

at org.armedbear.lisp.FaslClassLoader.loadFunction(FaslClassLoader.java:130)

at org.armedbear.lisp.FaslClassLoader$pf_get_fasl_function.execute(FaslClassLoader.java:165)

...

at org.armedbear.lisp.LispThread.execute(LispThread.java:832)

at org.armedbear.lisp.Lisp.evalCall(Lisp.java:582)

at org.armedbear.lisp.Lisp.eval(Lisp.java:540)

at org.armedbear.lisp.Lisp.progn(Lisp.java:709)

Caused by: org.armedbear.lisp.Go

; in (EVAL-WHEN (:COMPILE-TOPLEVEL :LOAD-TOPLEVEL ...) ...)

; Caught SIMPLE-WARNING:

; Unable to locate Maven executable to find Maven Aether adaptors.

jnaASDF could not load because Java exception 'java.lang.ClassNotFoundException: com.sun.jna.Native'..

#<THREAD "interpreter" {49B3491F}>: Debugger invoked on condition of type JAVA-EXCEPTION

Java exception 'java.lang.ClassNotFoundException: com.sun.jna.Native'.

Restarts:

0: RETRY Retry completing load for #<ASDF/SYSTEM:SYSTEM "jna">.

1: ACCEPT Continue, treating completing load for #<ASDF/SYSTEM:SYSTEM "jna"> as having been successful.

2: RETRY Retry compiling #<ASDF/LISP-ACTION:CL-SOURCE-FILE "cffi" "src" "cffi-abcl">.

3: ACCEPT Continue, treating compiling #<ASDF/LISP-ACTION:CL-SOURCE-FILE "cffi" "src" "cffi-abcl"> as having been successful.

4: RETRY Retry ASDF operation.

5: CLEAR-CONFIGURATION-AND-RETRY Retry ASDF operation after resetting the configuration.

6: TOP-LEVEL Return to top level.