* @param appendValue the value to append to the property value
     */
    protected void addSystemProperty(final List<String> cmdList, final String name, final String defaultValue, final String appendValue) {
        final String value = System.getProperty(name);
        if (value != null) {
            final StringBuilder buf = new StringBuilder();

  private void assertStringHash(int expected, String string, Charset charset) {
    if (allBmp(string)) {
      assertHash(expected, murmur3_32().hashString(string, charset));
    }
    assertHash(expected, murmur3_32_fixed().hashString(string, charset));
    assertHash(expected, murmur3_32().newHasher().putString(string, charset).hash());
    assertHash(expected, murmur3_32_fixed().newHasher().putString(string, charset).hash());

@NullMarked
public abstract class TestStringListGenerator implements TestListGenerator<String> {
  @Override
  public SampleElements<String> samples() {
    return new Strings();
  }

  @Override
  public List<String> create(Object... elements) {
    String[] array = new String[elements.length];
    int i = 0;
    for (Object e : elements) {
      array[i++] = (String) e;
    }
    return create(array);
  }

  /**

      }
      return Files.asCharSink(file, UTF_8);
    }

    @Override
    public String getExpected(String string) {
      checkNotNull(string);
      return initialString == null ? string : initialString + string;
    }

    @Override
    public String getSinkContents() throws IOException {
      File file = getFile();

        private final String name;

        public TestCorsHandler(String name) {
            this.name = name;
        }

        @Override
        public void process(String origin, ServletRequest request, ServletResponse response) {
            // Test implementation - no operation
        }

        public String getName() {
            return name;
        }
    }

    }

    protected MoreLikeThisQueryBuilder regMoreLikeThisQueryQ(String name, String[] likeTexts) {
        MoreLikeThisQueryBuilder moreLikeThisQuery = QueryBuilders.moreLikeThisQuery(new String[] { name }, likeTexts, null);
        regQ(moreLikeThisQuery);
        return moreLikeThisQuery;
    }

    protected SpanTermQueryBuilder regSpanTermQ(String name, String value) {
        checkEsInvalidQuery(name, value);

    }

    protected MoreLikeThisQueryBuilder regMoreLikeThisQueryQ(String name, String[] likeTexts) {
        MoreLikeThisQueryBuilder moreLikeThisQuery = QueryBuilders.moreLikeThisQuery(new String[] { name }, likeTexts, null);
        regQ(moreLikeThisQuery);
        return moreLikeThisQuery;
    }

    protected SpanTermQueryBuilder regSpanTermQ(String name, String value) {
        checkEsInvalidQuery(name, value);

        // Test that getMessage returns the same value consistently
        String message = "Consistent message";
        UnsupportedSearchException exception = new UnsupportedSearchException(message);

        String firstCall = exception.getMessage();
        String secondCall = exception.getMessage();
        String thirdCall = exception.getMessage();

        assertEquals(firstCall, secondCall);

    class AuthenticationMetadata {
        private final String username;
        private final String domain;
        private final AuthType authType;
        private final long timestamp;
        private final String clientAddress;
        private final String serverAddress;

        public AuthenticationMetadata(String username, String domain, AuthType authType, String clientAddress, String serverAddress) {
            this.username = username;

        public TestUrlQueue(String id, String url) {
            this.id = id;
            this.url = url;
        }

        @Override
        public String getId() {
            return id;
        }

        @Override
        public String getUrl() {
            return url;
        }

        @Override
        public String getMetaData() {
            return null;