Entry<String, String>[] array = (Entry<String, String>[]) new Entry<?, ?>[entries.length];
    int i = 0;
    for (Object o : entries) {
      @SuppressWarnings("unchecked")
      Entry<String, String> e = (Entry<String, String>) o;
      array[i++] = e;
    }
    return create(array);
  }

  protected abstract BiMap<String, String> create(Entry<String, String>[] entries);

  @Override

    Entry<String, String>[] array = (Entry<String, String>[]) new Entry<?, ?>[entries.length];
    int i = 0;
    for (Object o : entries) {
      @SuppressWarnings("unchecked")
      Entry<String, String> e = (Entry<String, String>) o;
      array[i++] = e;
    }
    return create(array);
  }

  protected abstract BiMap<String, String> create(Entry<String, String>[] entries);

  @Override

    String[] array = new String[] {"a"};
    Multiset<String> multiset = ImmutableMultiset.copyOf(array);
    assertEquals(HashMultiset.create(asList("a")), multiset);
  }

  @SuppressWarnings("ArrayAsKeyOfSetOrMap")
  public void testCreation_arrayOfArray() {
    String[] array = new String[] {"a"};
    Multiset<String[]> multiset = ImmutableMultiset.<String[]>of(array);
    Multiset<String[]> expected = HashMultiset.create();

        doc.put("key", mixedList);

        String[] result = DocumentUtil.getValue(doc, "key", String[].class);
        assertArrayEquals(new String[] { "string", "123", "true", "45.67" }, result);
    }

    @Test
    public void test_string_array_to_list_conversion() {
        Map<String, Object> doc = new HashMap<>();
        String[] array = { "a", "b", "c" };

    private static final String NAME_PREFIX = "searchApiTest_";
    private static final String DEFAULT_TESTDATA_PATH = "/tmp/fess-testdata";
    private static final String CRAWL_LABEL = NAME_PREFIX + "_label";
    private static final String TEST_LABEL = "tools";
    private static String fileConfigId;
    private static String labelId;
    private static String crawlLabelId;

    @BeforeAll

 */
public class SamlCredential implements LoginCredential, FessCredential {

    private final Map<String, List<String>> attributes;

    private final String nameId;

    private final String nameIdFormat;

    private final String sessionIndex;

    private final String nameidNameQualifier;

    private final String nameidSPNameQualifier;

    /**
     * Constructor.
     * @param auth The SAML authentication.

    }

    @Test
    public void test_toJsonString_withAllFields() {
        String[] text = { "test" };
        String[][] readings = { { "reading" } };
        String[] fields = { "field1" };
        String[] tags = { "tag1" };
        String[] roles = { "role1" };
        String[] languages = { "en" };

    @Override
    protected Set<String> create(String[] elements) {
      return ImmutableSet.copyOf(elements);
    }
  }

  public static class ImmutableSetUnsizedBuilderGenerator extends TestStringSetGenerator {
    @Override
    protected Set<String> create(String[] elements) {
      ImmutableSet.Builder<String> builder = ImmutableSet.builder();
      for (String e : elements) {
        builder.add(e);
      }

   */
  static String nullToEmpty(@Nullable String string) {
    return (string == null) ? "" : string;
  }

  /**
   * Returns the string if it is not empty, or a null string otherwise.
   *
   * @param string the string to test and possibly return
   * @return {@code string} if it is not empty; {@code null} otherwise
   */
  static @Nullable String emptyToNull(@Nullable String string) {

     * @param val The string to be interpolated.
     * @param callback The function to resolve variable values.
     * @return The interpolated string, or null if the input was null.
     */
    @Nullable
    default String interpolate(@Nullable String val, @Nullable UnaryOperator<String> callback) {
        return interpolate(val, callback, false);
    }

    /**
     * Interpolates a single string value using the provided callback function.