private static void deleteLines(@NotNull Document document, int line1, int line2) {
    TextRange range = getLinesRange(document, line1, line2);
    int offset1 = range.getStartOffset();
    int offset2 = range.getEndOffset();

    if (offset1 > 0) {
      offset1--;
    }
    else if (offset2 < document.getTextLength()) {
      offset2++;
    }
    document.deleteString(offset1, offset2);
  }
private static void deleteLines(@NotNull Document document, int line1, int line2)