private SecureCredentialStorage storage;
    private char[] masterPassword;

    @BeforeEach
    public void setUp() throws Exception {
        masterPassword = "MasterPassword123!@#".toCharArray();
        storage = new SecureCredentialStorage(masterPassword.clone());
    }

    @AfterEach
    public void tearDown() throws Exception {
        if (storage != null && !storage.isDestroyed()) {

        assertFalse(userAuth.isGuest());
        assertFalse(userAuth.isAnonymous());
    }

    /**
     * Test password in equals method
     */
    @Test
    public void testEqualsWithSecurePassword() {
        char[] password1 = "TestPass123!".toCharArray();
        char[] password2 = "TestPass123!".toCharArray();

        char[] basePassword = "supersecretpassword123456789".toCharArray();
        char[] diffAtStart = "Xupersecretpassword123456789".toCharArray();
        char[] diffAtMiddle = "supersecretpXssword123456789".toCharArray();
        char[] diffAtEnd = "supersecretpassword12345678X".toCharArray();

        // Create authenticators

        Object passwordValue = passwordField.get(authenticator);

        assertTrue(passwordValue instanceof char[], "Password should be stored as char[]");
        assertArrayEquals("password123".toCharArray(), (char[]) passwordValue, "Password content should match");
    }

    @Test
    @DisplayName("Test secure password wipe")
    void testSecureWipePassword() throws Exception {

     * @return The encoded attribute value.
     */
    public static String encodeAttrQuot(final String s) {
        if (s == null) {
            return null;
        }
        final char[] content = s.toCharArray();
        final StringBuilder buf = new StringBuilder(s.length() + 100);
        for (final char element : content) {
            switch (element) {
            case '<':
                buf.append("&lt;");

            + "\u0ce6\u0d66\u0e50\u0ed0\u0f20\u1040\u1090\u17e0\u1810\u1946"
            + "\u19d0\u1b50\u1bb0\u1c40\u1c50\ua620\ua8d0\ua900\uaa50\uff10";
    for (char base : zeros.toCharArray()) {
      for (int offset = 0; offset < 10; offset++) {
        sb.append((char) (base + offset));
      }
    }
    ALL_DIGITS = sb.toString();
  }

  /** Sample CharMatcher instances for benchmarking. */

    /**
     * Construct a UUID from string
     *
     * @param str
     *            the string representation of the UUID to parse
     */
    public UUID(final String str) {
        final char[] arr = str.toCharArray();
        this.time_low = hex_to_bin(arr, 0, 8);
        this.time_mid = S(hex_to_bin(arr, 9, 4));
        this.time_hi_and_version = S(hex_to_bin(arr, 14, 4));

            + "\u3000\uf8ff\ufeff\ufffb";

    static final CharMatcher INSTANCE = new Invisible();

    private Invisible() {
      super("CharMatcher.invisible()", RANGE_STARTS.toCharArray(), RANGE_ENDS.toCharArray());
    }
  }

  /** Implementation of {@link #singleWidth()}. */
  private static final class SingleWidth extends RangesMatcher {

        this.domain = dom != null ? dom : defDomain != null ? defDomain : "";
        this.username = user != null ? user : defUser != null ? defUser : "";
        this.password = pass != null ? pass.toCharArray() : defPassword != null ? defPassword.toCharArray() : new char[0];

        if (type == null) {
            this.type = guessAuthenticationType();
        } else {
            this.type = type;
        }
    }

    /**

    /**
     * Constructs a UUID from a string representation
     *
     * @param str the string representation of the UUID to parse
     */
    public UUID(final String str) {
        final char[] arr = str.toCharArray();
        time_low = hex_to_bin(arr, 0, 8);
        time_mid = S(hex_to_bin(arr, 9, 4));
        time_hi_and_version = S(hex_to_bin(arr, 14, 4));
        clock_seq_hi_and_reserved = B(hex_to_bin(arr, 19, 2));