code: protected final void update_stack_map_offset(int position, int delta) {
  
      running_offset = -1; // no +1 on first entry
      for (int i = 0; i < stack_map_table.length; i++) {
        running_offset = stack_map_table[i].getByteCodeOffset() + running_offset + 1;
  
        if (running_offset > position) {
          stack_map_table[i].updateByteCodeOffset(delta);
          // Only update the first StackMap that occurs after the given
          // offset as map offsets are relative to previous map entry.
          return;
        }
      }
    }
docs: We have inserted additional byte(s) into the instruction list; update the StackMaps, if
  required. Also sets running_offset.
  
  @param position the location of insertion
  @param delta the size of the insertion