how to build JOSM

How to build JOSM jar from source?

  1. Check out the trunk from using subversion
  2. Run “ant” in the trunk directory. You don’t need any parameters, it defaults to the jar build

You now should find a josm-custom.jar in trunk/dist. I assume that you have Subversion and Ant installed.

If you aren’t interested in JOSM itself but want to develop plugins, look here.