Developing/Debugging plugin with Eclipse

[Gautier Pelloux-Prayer]

Hi list,

I am trying to develop and debug a plugin using Eclipse. Developer 
guide from https://josm.openstreetmap.de/wiki/DevelopersGuide helped to 
setup Eclipse properly, but I cannot achieve my ultimate goal of plugin 
debugging.

I saw several topics for that purpose on this mailing list and other 
forums around that including:

https://lists.openstreetmap.org/pipermail/josm-dev/2009-October/003409.html
http://gis.19327.n8.nabble.com/debugging-plugins-td5848697.html
https://www.mail-archive.com/josm-dev@openstreetmap.org/msg00758.html

However I cannot find a clear step to step tutorial on how to achieve 
that.

I can tell JOSM project where to find the plugin source code (or vice 
versa), but once JOSM starts, it always uses the plugin from 
$HOME/.josm/plugins/plugin.jar and never actually rebuild it.

Any help would be greatly appreciated :-)