styleClass="btn btn-success btn-xs ${f:h(editableClass)}">
                                            <em class="fa fa-plus">
                                            <la:message key="labels.dict_synonym_link_create"/>
                                        </la:link>

    assertUnescaped(e, '\'');
    assertUnescaped(e, '(');
    assertUnescaped(e, ')');
    assertUnescaped(e, '~');
    assertUnescaped(e, ':');
    assertUnescaped(e, '@');

    // Don't use plus for spaces
    assertEscaping(e, "%20", ' ');

    assertEquals("safe%20with%20spaces", e.escape("safe with spaces"));
    assertEquals("******@****.***", e.escape("******@****.***"));
  }

  private UrlEscaperTesting() {}

                                                 styleClass="btn btn-success btn-xs ${f:h(editableClass)}">
                                            <em class="fa fa-plus">
                                            <la:message key="labels.dict_mapping_link_create"/>
                                        </la:link>

                                                 styleClass="btn btn-success btn-xs ${f:h(editableClass)}">
                                            <em class="fa fa-plus">
                                            <la:message key="labels.dict_synonym_link_create"/>
                                        </la:link>

                                        <la:link href="../createnew/${f:u(dictId)}"
                                                 styleClass="btn btn-success btn-xs">
                                            <em class="fa fa-plus">
                                            <la:message key="labels.dict_synonym_link_create"/>
                                        </la:link>

                                    <la:link href="installplugin"
                                             styleClass="btn btn-success btn-xs ${f:h(editableClass)}">
                                        <em class="fa fa-plus">
                                        <la:message key="labels.plugin_install"/>
                                    </la:link>
                                </div>
                            </div>

                                    value="<la:message key="labels.crud_button_install" />"
                            >
                                <em class="fa fa-plus">
                                <la:message key="labels.crud_button_install"/>
                            </button>
                        </div>
                        </la:form>

                                        <la:link href="../createnew/${f:u(dictId)}"
                                                 styleClass="btn btn-success btn-xs">
                                            <em class="fa fa-plus">
                                            <la:message key="labels.dict_stemmeroverride_link_create"/>
                                        </la:link>

                                    </la:link>
                                    <la:link href="createnew" styleClass="btn btn-success btn-xs ${f:h(editableClass)}">
                                        <em class="fa fa-plus">
                                        <la:message key="labels.elevate_word_link_create"/>
                                    </la:link>
                                    <la:link href="downloadpage"

      new RegularImmutableSet<>(EMPTY_ARRAY, 0, EMPTY_ARRAY, 0);

  private final transient Object[] elements;
  private final transient int hashCode;
  // the same values as `elements` in hashed positions (plus nulls)
  @VisibleForTesting final transient @Nullable Object[] table;
  // 'and' with an int to get a valid table index.
  private final transient int mask;