Thank you, the code of such a valuable project must be long-lasting :)
Source code
With sourceforge come a git repository (https://sourceforge.net/p/javastro/code/ref/master/); you clone it on your desktop : git clone https://git.code.sf.net/p/javastro/code javastro-code copy your exisiting files in the created directory then either you continue with git (git add, commit, push) or you use your IDE, all of them are able to do that cf https://sourceforge.net/p/forge/documentation/Git/
In Stellarium, Spica is blue and Antares red (nearly), it's nicer and can help identification.
Source code