My clone of the https://sourceforge.net/p/jedit/svn/HEAD/tree/jEdit/trunk/ SVN repository
$ # Make a working directory to hold the SVN checkout
$ mkdir jEdit-svn
$ svn checkout https://sourceforge.net/p/jedit/svn/HEAD/tree/jEdit/trunk/
$ # Create the GIT repo on github.com and then:
$ git clone https://github.com/megacoder/jEdit
$ # Import the SVN download
$ cd jEdit
$ cp -rl ../jEdit-svn/. .
$ git add -A ./
$ git commit -a -m 'Original import'
$ git push
The original compilation instructions are in the:
README.SRC.txt
file.