docs: protected void buildField( ClassVisitor cw,
                                 FieldDefinition fieldDef) {
          FieldVisitor fv = cw.visitField( Opcodes.ACC_PROTECTED,
                                           fieldDef.getName(),
                                           BuildUtils.getTypeDescriptor( fieldDef.getTypeName() ),
                                           null,
                                           null );
  
  
          buildFieldAnnotations( fieldDef, fv );
  
          fv.visitEnd();
      }