* (Function<Object, E> & Serializable) o -> value}.
   *
   * @param value the constant value for the function to return
   * @return a function that always returns {@code value}
   */
  public static <E extends @Nullable Object> Function<@Nullable Object, E> constant(
      @ParametricNullness E value) {
    return new ConstantFunction<>(value);
  }

import com.google.common.annotations.GwtIncompatible;
import com.google.common.annotations.J2ktIncompatible;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;

/**
 * Contains constant definitions for the six standard {@link Charset} instances, which are
 * guaranteed to be supported by all Java platform implementations.
 *
 * <p>Assuming you're free to choose, note that <b>{@link #UTF_8} is widely preferred</b>.

    public GoAction() {
        super();
    }

    // ===================================================================================
    //                                                                            Constant
    //
    /** Logger for this class. */
    private static final Logger logger = LogManager.getLogger(GoAction.class);

    /** Helper for URL path mapping and transformation. */
    @Resource

            throw new PACDecodingException("Malformed PAC signature", e);
        }
    }

    /**
     * Gets the checksum type of this signature.
     *
     * @return the checksum type constant
     */
    public int getType() {
        return this.type;
    }

    /**
     * Gets the checksum data.
     *
     * @return the checksum bytes
     */
    public byte[] getChecksum() {

        super();
    }

    private static final Logger logger = LogManager.getLogger(ProfileAction.class);

    // ===================================================================================
    // Constant
    //

    // ===================================================================================
    // Attribute
    //
    @Resource
    private UserService userService;

      replacements[c] = map.get(c).toCharArray();
    }
    return replacements;
  }

  // Immutable empty array for when there are no replacements.
  @SuppressWarnings("ConstantCaseForConstants") // An empty array is a constant.
  private static final char[][] EMPTY_REPLACEMENT_ARRAY = new char[0][0];

		descriptors: d,
	}
}

// ToPromMetrics - converts the internal metric values to Prometheus
// adding the given name prefix. The extraLabels are added to each metric as
// constant labels.
func (m *MetricValues) ToPromMetrics(namePrefix string, extraLabels map[string]string,
) []prometheus.Metric {
	metrics := make([]prometheus.Metric, 0, len(m.values))
	for metricName, mv := range m.values {

    }

    @Test
    @DisplayName("Constants: values match Windows error codes")
    void constants_have_expected_values() {
        // Ensure each public constant has its documented numeric value (happy path)
        assertAll(() -> assertEquals(0, WinError.ERROR_SUCCESS), () -> assertEquals(5, WinError.ERROR_ACCESS_DENIED),

    // Happy path: values() returns all constants in declaration order
    @Test
    @DisplayName("values() returns all declared constants in order")
    void valuesContainsAllInOrder() {
        RequestParam[] values = RequestParam.values();

        assertNotNull(values, "values() must not return null");
        assertEquals(4, values.length, "There must be exactly 4 constants");
        assertArrayEquals(

    void testNullProtocolId() {
        // Protocol ID is a constant in transform header, not settable
        // This test is not applicable - the protocol ID is always TRANSFORM_PROTOCOL_ID
        assertTrue(true);
    }

    @Test
    @DisplayName("Should handle invalid protocol ID length")
    void testInvalidProtocolIdLength() {
        // Protocol ID is a constant in transform header, not settable