glyph.makeGlyphIfNeeded(gdo);
// make instructionstream from path list...
final InstructionStream is_in = glyph.getInstructionStream();
final InstructionStream is_out = new InstructionStream();
FEPathList fepathlist = glyph.getInstructionStream().getFEPathList();
addCertainPaths(is_in, is_out, fepathlist, false);
addCertainPaths(is_in, is_out, fepathlist, true);
is_out.add(END_GLYPH);
glyph.setInstructionStream(is_out);