ASN1ObjectIdentifier oid = testOid();
            MIEName a = new MIEName(oid, "Alice");
            MIEName b = new MIEName(oid, "alice");
            assertEquals(a, b);
            assertEquals(a.hashCode(), b.hashCode());
        }

        @Test
        void equalsHandlesNullNames() {
            ASN1ObjectIdentifier oid = testOid();
            MIEName a = new MIEName(oid, null);

    // Helper methods to create test tokens

    private byte[] createGssApiWrapper(ASN1ObjectIdentifier oid, byte[] data) throws IOException {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();

        // Build the inner content
        ByteArrayOutputStream innerContent = new ByteArrayOutputStream();
        innerContent.write(oid.getEncoded());
        innerContent.write(data);

    MIEName(final ASN1ObjectIdentifier oid, final String name) {
        this.oid = oid;
        this.name = name;
    }

    /*
     * (non-Javadoc)
     *
     * @see java.lang.Object#equals(java.lang.Object)
     */
    @Override
    public boolean equals(final Object other) {

        if (other instanceof final MIEName terg) {
            if (Objects.equals(this.oid, terg.oid)

        }
    }

    @Test
    @DisplayName("OID values have valid dotted numeric format")
    void oidFormat() {
        assertAll(() -> assertTrue(OID_PATTERN.matcher(SpnegoConstants.SPNEGO_MECHANISM).matches(), "Invalid OID: SPNEGO_MECHANISM"),
                () -> assertTrue(OID_PATTERN.matcher(SpnegoConstants.KERBEROS_MECHANISM).matches(), "Invalid OID: KERBEROS_MECHANISM"),

    }

    /**
     * Gets the selected authentication mechanism OID
     * @return the mechanism OID
     */
    public ASN1ObjectIdentifier getMechanism() {
        return this.mechanism;
    }

    /**
     * Sets the selected authentication mechanism OID
     * @param mechanism the mechanism OID to set
     */
    public void setMechanism(final ASN1ObjectIdentifier mechanism) {

    private static final Oid JGSS_KRB5_NAME_OID;
    private static final Oid JGSS_KRB5_MECH_OID;

    static {
        KRB5_MECH_OID = new ASN1ObjectIdentifier("1.2.840.113554.1.2.2");
        KRB5_MS_MECH_OID = new ASN1ObjectIdentifier("1.2.840.48018.1.2.2");
        SUPPORTED_MECHS = new ASN1ObjectIdentifier[] { KRB5_MECH_OID, KRB5_MS_MECH_OID };

        Oid krbNameOid = null;
        Oid krbMechOid = null;

    @ParameterizedTest
    @MethodSource("supportedMechs")
    @DisplayName("isSupported returns true for supported OIDs")
    void isSupported_supportedOids(ASN1ObjectIdentifier oid) {
        assertTrue(ctx.isSupported(oid));
        assertTrue(ctx.isPreferredMech(oid));
    }

    @Test
    @DisplayName("isSupported returns false for null/unknown OIDs")
    void isSupported_unknownOrNull() {

 */
public interface SpnegoConstants {

    /**
     * OID for the SPNEGO mechanism
     */
    String SPNEGO_MECHANISM = "1.3.6.1.5.5.2";

    /**
     * OID for the Kerberos v5 mechanism
     */
    String KERBEROS_MECHANISM = "1.2.840.113554.1.2.2";

    /**
     * OID for the legacy Kerberos v5 mechanism
     */
    String LEGACY_KERBEROS_MECHANISM = "1.2.840.48018.1.2.2";

            assertEquals(2, seq.size(), "Sequence should contain OID and [0] NegTokenInit");
            assertTrue(seq.getObjectAt(0) instanceof ASN1ObjectIdentifier, "First element should be OID");
            ASN1ObjectIdentifier oid = (ASN1ObjectIdentifier) seq.getObjectAt(0);
            assertEquals(SPNEGO_OID_STR, oid.getId(), "OID should be SPNEGO");
        }
    }

    @Nested

     * @param mechanism the security mechanism OID to check
     * @return whether the specified mechanism is supported
     */
    boolean isSupported(ASN1ObjectIdentifier mechanism);

    /**
     * Checks whether the specified mechanism is the preferred mechanism.
     * @param selectedMech the selected mechanism OID
     * @return whether the specified mechanism is preferred
     */