"requires": "1.0.3"
          }
        },
        {
          "group": "com.google.guava",
          "module": "listenablefuture",
          "version": {
            "requires": "9999.0-empty-to-avoid-conflict-with-guava"
          }
        },
        {
          "group": "org.jspecify",
          "module": "jspecify",
          "version": {
            "requires": "${jspecify.version}"
          }

  fun peek(): Headers? = null

  @Throws(IOException::class)
  fun get(): Headers

  companion object {
    @JvmField
    val EMPTY: TrailersSource =
      object : TrailersSource {
        override fun peek() = Headers.EMPTY

        override fun get() = Headers.EMPTY
      }
  }

   *     // operate on tuple
   *   }
   * }
   * }
   *
   * <p>Note that if any input set is empty, the Cartesian product will also be empty. If no sets at
   * all are provided (an empty list), the resulting Cartesian product has one element, an empty
   * list (counter-intuitive, but mathematically consistent).
   *

     */
    @Nonnull
    default Optional<InputStream> stdIn() {
        return Optional.ofNullable(parserRequest().stdIn());
    }

    /**
     * Returns the output stream for the Maven execution, if running in embedded mode.
     *
     * @return an {@link Optional} containing the output stream, or empty if not applicable
     */
    @Nonnull

            return Optional.of(Boolean.TRUE);
        }
        return Optional.empty();
    }

    @Override
    public Optional<Boolean> yes() {
        if (commandLine.hasOption(CLIManager.YES)) {
            return Optional.of(Boolean.TRUE);
        }
        return Optional.empty();
    }

    @Override
    public Optional<List<String>> goals() {

    /**
     * Gets the decrypted proxies.
     *
     * @return The decrypted proxy, can be empty but never {@code null}.
     */
    List<Proxy> getProxies();

    /**
     * Gets the problems that were encountered during the settings decryption.
     *
     * @return The problems that were encountered during the decryption, can be empty but never {@code null}.
     */
    List<SettingsProblem> getProblems();

}

// Empty returns true for a target if arn is empty
func (rt replicatedTargetInfo) Empty() bool {
	return rt.Arn == ""
}

type replicatedInfos struct {
	ReplicationTimeStamp time.Time
	Targets              []replicatedTargetInfo
}

func (ri replicatedInfos) CompletedSize() (sz int64) {
	for _, t := range ri.Targets {
		if t.Empty() {
			continue
		}

        // Test with another type and empty raw data
        int type2 = AvPair.MsvAvEOL;
        byte[] raw2 = new byte[] {};
        AvPair avPair2 = new AvPair(type2, raw2);

        assertEquals(type2, avPair2.getType(), "Type should match the constructor argument for empty raw data.");
        assertArrayEquals(raw2, avPair2.getRaw(), "Raw data should match the constructor argument for empty raw data.");

        // Test with null raw data

    }

    @Test
    @DisplayName("mechanism token empty array – preserved after round‑trip")
    void testEmptyMechanismToken() throws IOException {
        NegTokenTarg nt = new NegTokenTarg();
        nt.setResult(NegTokenTarg.REQUEST_MIC);
        nt.setMechanismToken(new byte[0]); // empty but non‑null
        nt.setMechanism(new ASN1ObjectIdentifier("2.16.840.1.101.3.6.1"));

     */
    public OptionalEntity<FileConfig> getFileConfigByName(final String name) {
        final ListResultBean<FileConfig> list = fileConfigBhv.selectList(cb -> {
            cb.query().setName_Equal(name);
            cb.query().addOrderBy_SortOrder_Asc();
        });
        if (list.isEmpty()) {
            return OptionalEntity.empty();
        }