I am not able to install the java compiler on fedora (

https://docs.fedoraproject.org/en-US/Fedora_Core/6/html/Release_Notes/sn-Java.html

).

I read that fedora not support directly gcj ...
So I try to work around, to install it  indirectly, but I have to much problem to find the necessary dependencies...

Ho to do ?
any advice will welcome

Angelo