private final String domain;
        private final boolean anonymous;
        private final boolean guest;
        private final Subject subject;
        private final boolean failOnRefresh;

        TestCredentials(String domain, boolean anonymous, boolean guest, Subject subject, boolean failOnRefresh) {
            this.domain = domain;
            this.anonymous = anonymous;
            this.guest = guest;

		}
	}

	// Test for Anonymous/unsigned http request.
	anonReq, err := newTestRequest(http.MethodHead, getHEADBucketURL("", bucketName), 0, nil)
	if err != nil {
		t.Fatalf("MinIO %s: Failed to create an anonymous request for bucket \"%s\": <ERROR> %v",
			instanceType, bucketName, err)
	}

	// ExecObjectLayerAPIAnonTest - Calls the HTTP API handler using the anonymous request, validates the ErrAccessDeniedResponse,

			}
		}
	}

	// Test for Anonymous/unsigned http request.
	// Bucket policy related functions doesn't support anonymous requests, setting policies shouldn't make a difference.
	// create unsigned HTTP request for PutBucketPolicyHandler.
	anonReq, err := newTestRequest(http.MethodGet, getPutPolicyURL("", bucketName), 0, nil)
	if err != nil {
		t.Fatalf("MinIO %s: Failed to create an anonymous request for bucket \"%s\": <ERROR> %v",

    void isAnonymous_behaviour() {
        Kerb5Authenticator anon = new Kerb5Authenticator((Subject) null);
        assertTrue(anon.isAnonymous(), "Null subject with default super should be anonymous");

        Kerb5Authenticator nonAnon = new Kerb5Authenticator(new Subject());
        assertFalse(nonAnon.isAnonymous());
    }

    static Object[][] preferredMechData_nonAnonymous() {

	ctxt.JSON = ctx.IsSet("json") || ctx.GlobalIsSet("json")
	// Get quiet flag from command line argument.
	ctxt.Quiet = ctx.IsSet("quiet") || ctx.GlobalIsSet("quiet")
	// Get anonymous flag from command line argument.
	ctxt.Anonymous = ctx.IsSet("anonymous") || ctx.GlobalIsSet("anonymous")
	// Fetch address option
	ctxt.Addr = ctx.GlobalString("address")
	if ctxt.Addr == "" || ctxt.Addr == ":"+GlobalMinioDefaultPort {
		ctxt.Addr = ctx.String("address")

        try (SmbSessionImpl treesess = t.getSession()) {
            if (treesess.getCredentials().isAnonymous() || treesess.getCredentials().isGuest()) {
                // refresh anonymous session or fallback to anonymous from guest login
                try (SmbSessionInternal s =
                        trans.getSmbSession(this.ctx.withAnonymousCredentials(), treesess.getTargetHost(), treesess.getTargetDomain())

	return cred, owner, ErrNone
}

// checkAdminRequestAuth checks for authentication and authorization for the incoming
// request. It only accepts V2 and V4 requests. Presigned, JWT and anonymous requests
// are automatically rejected.
func checkAdminRequestAuth(ctx context.Context, r *http.Request, action policy.AdminAction, region string) (auth.Credentials, APIErrorCode) {

			}

			if !strings.Contains(v, "update") {
				field.Updatable = false
			}
		}
	}

	// Normal anonymous field or having `EMBEDDED` tag
	if _, ok := field.TagSettings["EMBEDDED"]; ok || (field.GORMDataType != Time && field.GORMDataType != Bytes && !isValuer &&
		fieldStruct.Anonymous && (field.Creatable || field.Updatable || field.Readable)) {
		kind := reflect.Indirect(fieldValue).Kind()
		switch kind {

            request.setFileId(secondFileId);
            request.setFileId(testFileId);
        }, "Should handle multiple setFileId calls");
    }

    @Test
    @DisplayName("Should test interface with anonymous implementation")
    void testAnonymousImplementation() {
        // Given
        byte[] capturedFileId = new byte[1];
        RequestWithFileId anonymousImpl = new RequestWithFileId() {

     */
    public enum AuthenticationType {
        /**
         * Null/anonymous authentication
         *
         * Login with no credentials
         */
        NULL,
        /**
         * Guest authentication
         *
         * Allows login with invalid credentials (username and/or password)
         * Fallback to anonymous authentication is permitted
         */
        GUEST,
        /**