public static boolean isBearerToken(final String authorizationHeader) {
        return StringUtils.hasText(authorizationHeader) &&
                authorizationHeader.startsWith(TOKEN_PREFIX);
    }
@Test
    void testIsBearerToken_WithEmptyHeader() {

        // Given
        String authorizationHeader = "";

        // When
        boolean result = Token.isBearerToken(authorizationHeader);

        // Then
        assertFalse(result);

    }