private final String name;

    /** The array of values associated with this parameter. */
    private final String[] values;

    /**
     * Constructs a new RequestParameter with the specified name and values.
     *
     * @param name the name of the parameter, must not be null
     * @param values the array of values for this parameter, can be null or empty
     */

public class StreamUtilTest extends TestCase {

    public void test_ofValues() {
        String[] values = { "value1", "value2" };
        StreamUtil.stream(values[0], values[1]).of(s -> {
            Object[] array = s.toArray();
            for (int i = 0; i < 2; i++) {
                assertEquals(values[i], array[i]);
            }
        });
    }

    public void test_ofNull() {

            final String key = e.getKey();
            Object value = e.getValue();
            if (value == null) {
                value = StringUtil.EMPTY;
            }
            if (value instanceof String || value == null) {
                return new Pair<>(key, value);
            }
            if (arrayFieldSet.contains(key)) {
                if (value instanceof String[]) {

         * The value is split by pipe character (|) and each part is trimmed.
         *
         * @param value the configuration value string to parse
         */
        public Config(final String value) {
            values = StreamUtil.split(value, Pattern.quote("|")).get(stream -> stream.map(String::trim).toArray(n -> new String[n]));
        }

        /**

        String value = this.connection.getHeaderField(0);
        for (int i = 1; key != null || value != null; i++) {
            List<String> values = map.get(key);
            if (values == null) {
                values = new ArrayList<>();
                map.put(key, values);
            }
            values.add(value);
            key = this.connection.getHeaderFieldKey(i);

    }

    @Test
    public void testParamMethod() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        CurlRequest result = request.param("key1", "value1").param("key2", "value2");

        assertSame(request, result); // Fluent API
    }

    @Test
    public void testParamWithNullValue() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        if (value == null || (value instanceof String && ((String) value).isEmpty())) {
            String msg = "Cannot register null or empty query: name=" + name + " value=" + value;
            throw new InvalidQueryRegisteredException(msg);
        }
    }

    protected void checkEsInvalidQueryCollection(String name, Collection<?> values) {

                dataMap.put(key, values);
            } else {
                final Object[] values = Arrays.copyOf(oldValues, oldValues.length + 1);
                values[values.length - 1] = value;
                dataMap.put(key, values);
            }
        }
    }

    /**
     * Puts data into the result data map after processing it through a template script.

        }
        if (value instanceof Long) {
            return ((Long) value).floatValue();
        }
        if (value instanceof Float) {
            return (Float) value;
        }
        if (value instanceof Double) {
            return ((Double) value).floatValue();
        }
        if (value != null) {
            return Float.parseFloat(value.toString());
        }

        return 0.0f;

    /**
     * Trims space characters from the value.
     * @param value The value to trim.
     * @return The trimmed value.
     */
    protected String trimSpace(final String value) {
        if (trimSpaceEnabled) {
            final Matcher matcher = SPACE_PATTERN.matcher(value);
            return matcher.replaceAll(" ").trim();
        }
        return value;
    }

    /**