> It's been a few years since I touched anything Java, and I have no
> experience in building Java libraries, but I could certainly try. If you
> have any pointers for packaging Java libraries please let me know.

I'm no expert either but I have started packaging jackrabbit-webdav (see 
attachement). It is by all means very WIP, at some point I stopped 
working on it but would like to get it packaged!

> So, based on the dependency tree from your link, this should be the full
> list of dependencies needed. Some of which are already packaged.
> 
>   [x] junit:junit:jar:4.13.1 (test)
>   [x] org.hamcrest:hamcrest-core:jar:1.3 (test)
>   [ ] org.apache.jackrabbit:jackrabbit-webdav:jar:2.14.6 (compile)
>   [x] org.slf4j:slf4j-api:jar:1.7.25 (compile)
>   [x] org.apache.httpcomponents:httpclient:jar:4.5.6 (compile)
>   [x] org.apache.httpcomponents:httpcore:jar:4.4.10 (compile)
>   [x] commons-logging:commons-logging:jar:1.2 (compile)
>   [x] commons-httpclient:commons-httpclient:jar:3.1 (compile)
>   [ ] org.slf4j:jcl-over-slf4j:jar:1.7.25 (compile)
>   [ ] org.slf4j:slf4j-log4j12:jar:1.7.25 (compile)
>   [x] commons-codec:commons-codec:jar:1.11 (compile)
>   [x] log4j:log4j:jar:1.2.17 (compile)
>   [x] com.sun.mail:javax.mail:jar:1.5.6 (compile)
>   [ ] javax.activation:activation:jar:1.1.1 (compile)
>   [x] org.eclipse:swt:jar:4.9 (system)
>   [x] javax.servlet:servlet-api:jar:2.4 (compile)
>   [ ] net.sourceforge.htmlcleaner:htmlcleaner:jar:2.29 (compile)
>   [x] org.jdom:jdom2:jar:2.0.6.1 (compile)
>   [x] com.fasterxml.woodstox:woodstox-core:jar:6.4.0 (compile)
>   [x] org.codehaus.woodstox:stax2-api:jar:4.2.1 (compile)
>   [ ] org.samba.jcifs:jcifs:jar:1.3.14 (system)
>   [ ] net.freeutils:jcharset:jar:2.0 (compile)
>   [?] org.boris.winrun4j:winrun4j:jar:0.4.5 (system)
>   [x] org.codehaus.jettison:jettison:jar:1.5.4 (compile)
> 
> I didn't check the versions of the stuff that is already packaged, only
> if it is packaged or not. Hopefully davmail will work with whatever
> version is already packaged for these dependencies.
> 
> I think winrun4j cannot possibly be needed, since that is a Windows
> thing. And I'm also not sure why jcifs would be needed for an email gateway.

Yes I think we can assume winrun4j is not needed.

> I also wrote a Shepherd services for davmail and offlineimap. I will
> submit these services also, but they need some cleanup first. If you are
> interested you can find them in a thread on bug-guix [1], or in my
> channel [2].

This sounds great, will check them out!