in 4.0 i can overwrite getFragmentPostLightingCode / activate etc in my sub class.
but in 4.1 / 4.1.1 these methods became to internal (arcane) scope, so what should i do now?
my target is to create my own shading method.
for example:
public class mymethod extends BasicDiffuseMethod
{
  ..... i could not overwrite any method….
}
is there any other ways?
and what is the purpose that away team to make methods to internal?

sorry this is resolved…
use arcane namespace:
and overwrite with arcane scope:

override arcane function getVertexCode():String { ... }

and it works.

and the purpose is clear:  make framework stronger and safer.