public Paragraph addNewParagraph(AuthenticationInfo authenticationInfo) {
    return insertNewParagraph(paragraphs.size(), authenticationInfo);
  }
@Test
  void addParagraphWithEmptyReplNameTest() {
    Note note = new Note("test", "", interpreterFactory, interpreterSettingManager,
        paragraphJobListener, credentials, noteEventListener, zConf, noteParser);
    Paragraph p = note.addNewParagraph(AuthenticationInfo.ANONYMOUS);
    assertNull(p.getText());
  }