mv.visitVarInsn(Opcodes.ALOAD, 0);
mv.visitVarInsn(Opcodes.ALOAD, 1);
mv.visitFieldInsn(Opcodes.PUTFIELD, className + "Extensibility", "required", "Ljava/lang/Boolean;");
l1 = helper.createLabel();
mv.visitLabel(l1);
mv.visitLineNumber(72, l1);
mv.visitInsn(Opcodes.RETURN);
l2 = helper.createLabel();
mv.visitLabel(l2);
mv.visitLocalVariable("this", "L" + className + "Extensibility;", null, l0, l2, 0);
mv.visitLocalVariable("b", "Ljava/lang/Boolean;", null, l0, l2, 1);