State of the "present"-extension?

[Clemens Eisserer]

Hi,

I recently saw Keith's video about tear-free X11 applications using
the "present" extension and would like to work use this extension in
OpenJDKs's Xrender backend.
However I had a hard time to find information how to use it and which
components are required in order to use it.

So I would be grateful for any pointers / example code.

Thank you in advance, Clemens