// Test extended ASCII characters (not valid URL chars without encoding)
        assertFalse(CharUtil.isUrlChar('\u00A0')); // non-breaking space
        assertFalse(CharUtil.isUrlChar('\u00FF')); // ÿ
    }

    public void test_isUrlChar_unicode() {
        // Test Unicode characters (not valid URL chars without encoding)
        assertFalse(CharUtil.isUrlChar('\u3042')); // あ (Hiragana)

    public static final String MIN_ELEMENT = "a";
    public static final String AFTER_LAST = "z";
    public static final String AFTER_LAST_2 = "zz";
  }

  public static class Chars extends SampleElements<Character> {
    public Chars() {
      // elements aren't sorted, to better test SortedSet iteration ordering
      super('b', 'a', 'c', 'd', 'e');
    }
  }

  public static class Enums extends SampleElements<AnEnum> {

      }
    }
  }

  private static String mikeRepeat(String string, int count) {
    int len = string.length();
    char[] strCopy = new char[len * Integer.highestOneBit(count)];
    string.getChars(0, len, strCopy, 0);

    char[] array = new char[len * count];

    int strCopyLen = len;
    int pos = 0;
    while (count != 0) {
      if ((count & 1) != 0) {

    }

    /**
     * Generates the NT password hash for the given password.
     * This version accepts char[] for better security.
     *
     * @param password the password to hash as char array
     * @return nt password hash
     */
    public static byte[] getNTHash(final char[] password) {
        if (password == null) {
            throw new NullPointerException("Password parameter is required");

      assertThat(expected.message)
        .isEqualTo("Unexpected char 0xe9 at 1 in header name: héader1")
    }
  }

  @Test fun builderRejectsUnicodeInHeaderValue() {
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add("header1", "valué1")
    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Unexpected char 0xe9 at 4 in header1 value: valué1")
    }
  }

        final int strLen = str != null ? str.length() : 0;
        if (strLen > 0) {
            for (int i = 0; i < strLen; i++) {
                if (!Character.isWhitespace(str.charAt(i))) {
                    return;
                }
            }
        }
        throw new IllegalArgumentException(message);
    }

 * limitations under the License.
 */

package com.google.common.escape;

/**
 * @author Jesse Wilson
 */
final class Platform {

  private static final char[] CHAR_BUFFER = new char[1024];

  static char[] charBufferFromThreadLocal() {
    // ThreadLocal is not available to GWT, so we always reuse the same
    // instance.  It is always safe to return the same instance because

        if (resourceBundle == null) {
            return null;
        }

        final int length = messageCode.length();
        if (length > CODE_NUMBER_LENGTH) {
            final String key = messageCode.charAt(0) + messageCode.substring(length - CODE_NUMBER_LENGTH);
            final String pattern = ResourceBundleUtil.getString(resourceBundle, key);
            if (pattern != null) {
                return pattern;
            }

                            String string = o.toString();
                            int i = string.length() - 1;
                            while (i >= 0) {
                                char c = string.charAt(i);
                                if (c == '\n' || c == '\r' || c == ' ') {
                                    i--;
                                } else {
                                    break;

            assertTrue(result.startsWith("NtlmChallenge[challenge=0x"));
            assertTrue(result.endsWith(",dc=SERVER123]"));

            // Hexdump.toHexString with size = length * 2 produces 8 uppercase hex chars
            // The hex should be "010203FF"
            assertTrue(result.contains("010203FF"));
        }

        @Test
        @DisplayName("toString with empty challenge array")