The certified application server and ADF combinations for ADF 11.1.2.x.x are available here.
We need to follow the
I'm of course only going to list a helpful link and not actually post the contents of that document as it is secure, but briefly:
1. On your standalone weblogic server, Install ADF 18.104.22.168 runtime first
ADF Runtime is available from the usual ADF downloads page.
2. Then install the two patches for both ADF 22.214.171.124 and ADF 126.96.36.199 available from Oracle support and mentioned in the support document.
It's important to read the patch README files, set the ORACLE_HOME environment variable correctly and use the correct OPatch version... (latest usually works) to avoid any gotchas.