[armedbear-devel] installing java dependencies with :mvn ASDF component

[Anton Vodonosov]

Hello.

I need to import data from Excel, and following Hans Hübner's article
for how to do this with ABCL:
http://netzhansa.blogspot.com/2013/03/dealing-with-excel-files-from-common.html

The Hans' code depends on Apache POI library.

I saw that ABCL comes from abcl-asdf contrib,  which extends ASDF by adding a :mnv component,
so that we can specify :mvn artifact as a dependency of our ASDF system.
I would like to use this facility to automatically install the POI .jar files.

I created an .asdf file with this content:

(defsystem :excel-s
  :defsystem-depends-on (:abcl-asdf)
  :version "0.1.0"
  :encoding :utf-8
  :components ((:mvn "org.apache.poi/poi-ooxml/3.9")))

Then I invoke ABCL:
C:\Users\anton\projects\abcl\abcl.bat --batch --eval "(require :abcl-contrib") --eval "(pushnew \"./\" asdf:*central-registry* :test #'equal)" --eval "(ql:quickload :excel-s)"

It fails with exception: java.lang.ClassNotFoundException: aether.util.artifact.DefaultArtifact
This exception is throw by abcl-asdf::resolve-dependencies function, defined in the
contrib/abcl-asdf/maven-embedder.lisp.

Maven is installed on my machine, including the /lib/ directory containing the Aether API jars.

I performed some investigation and tried to ensure the Aether .jars are added to classpath:

(abcl-asdf::init)
(let ((*default-pathname-defaults* abcl-asdf::*mvn-libs-directory*))
  (dolist (jar-pathname (or (directory "**/*.jar")
                                (error "no jars found in ~S - expected Apache Maven /libs/ directory ~
                                          installation there"
                                       (merge-pathnames abcl-asdf::*mvn-libs-directory*))))
        (java:add-to-classpath (namestring jar-pathname))))

Still I have the same error - class aether.util.artifact.DefaultArtifact not found.

Is the way I am trying to install java libs expected to work, and how to find the problem?

Best regards,
- Anton