assertEquals("/var/log/syslog.log", sanitized2);
        assertTrue(AdminLogAction.isLogFilename(sanitized2));
    }

    @Test
    public void test_security_encodedPathTraversal() {
        // These are literal strings (not URL encoded at this point)
        // URL encoding would be handled before Base64 decoding
        assertEquals("fess.log", AdminLogAction.sanitizeFilename("fess.log"));