Building on Ubuntu does not work.

[Civitello]

When following these instructions:
https://github.com/Zodsmar/SeedSearcherStandaloneTool/wiki/Linux-Build-Instructions-(v0.6.0)
It is impossible to get java 14 as it is not available in the Ubuntu package manager.
I have been unsuccessful at finding and installing java 14 any other way.
Please help.

[Zodsmar]

I am completely rewriting the app for the new version, so once its out if you could test this again and let me know if it is solved that would be great.