modifyList.add(mod);
    }

    /**
     * Modifies an entry.
     *
     * @param dn The DN of the entry.
     * @param modifyList The list of modification items.
     * @param envSupplier The environment supplier.
     */
    protected void modify(final String dn, final List<ModificationItem> modifyList, final Supplier<Hashtable<String, String>> envSupplier) {
        if (modifyList.isEmpty()) {

labels.ldapProviderUrl=LDAP URL
labels.ldapSecurityPrincipal=User DN
labels.ldapAdminSecurityPrincipal=Bind DN
labels.ldapAdminSecurityCredentials=Password
labels.ldapBaseDn=Base DN
labels.ldap_provider_url=LDAP URL
labels.ldap_security_principal=User DN
labels.ldap_admin_security_principal=Bind DN
labels.ldap_admin_security_credentials=Password
labels.ldap_base_dn=Base DN
labels.ldapAccountFilter=Account Filter

                + "     #jdfagdfjagkdjfghksdajfd\n"
                + "     \n"
                + "!!properties\n"
                + "\n"
                + "a=a\n"
                + "b bb as,dn   \n"
                + "c\\r\\ \\t\\nu =:: cu\n"
                + "bu= b\\\n"
                + "                u\n"
                + "d=d\\r\\ne=e\n"
                + "f   :f\\\n"
                + "f\\\n"

labels.ldapProviderUrl=LDAP URL
labels.ldapSecurityPrincipal=User DN
labels.ldapAdminSecurityPrincipal=Bind DN
labels.ldapAdminSecurityCredentials=Password
labels.ldapBaseDn=Base DN
labels.ldap_provider_url=LDAP URL
labels.ldap_security_principal=User DN
labels.ldap_admin_security_principal=Bind DN
labels.ldap_admin_security_credentials=Password
labels.ldap_base_dn=Base DN
labels.ldapAccountFilter=Account Filter

        }
    }

    @Test
    public void test_throwAndCatchAsFessSystemException() {
        // Test catching as parent exception type
        String errorMessage = "LDAP bind DN is invalid";

        try {
            throw new LdapConfigurationException(errorMessage);
        } catch (FessSystemException e) {
            assertEquals(errorMessage, e.getMessage());

        assertNull(ldapManager.getSearchRoleName(""));
        assertNull(ldapManager.getSearchRoleName("   "));
        assertNull(ldapManager.getSearchRoleName("no_cn_prefix"));
        assertNull(ldapManager.getSearchRoleName("dn=test"));
    }

    @Test
    public void test_replaceWithUnderscores_withEdgeCases() {
        LdapManager ldapManager = new LdapManager();
        ldapManager.init();

        // Edge cases

          throw SSLPeerUnverifiedException(
            """
            |Hostname ${address.url.host} not verified:
            |    certificate: ${CertificatePinner.pin(cert)}
            |    DN: ${cert.subjectDN.name}
            |    subjectAltNames: ${OkHostnameVerifier.allSubjectAltNames(cert)}
            """.trimMargin(),
          )
        } else {
          throw SSLPeerUnverifiedException(

     * Used in conjunction with the admin security principal.
     */
    @Size(max = 1000)
    public String ldapAdminSecurityCredentials;

    /**
     * LDAP base DN (Distinguished Name) for user searches.
     * Defines the root of the LDAP directory tree for user lookups.
     */
    @Size(max = 1000)
    public String ldapBaseDn;

    /**

ldap.admin.user.filter=uid\=%s
# Base DN for LDAP admin user.
ldap.admin.user.base.dn=ou\=People,dc\=fess,dc\=codelibs,dc\=org
# Object classes for LDAP admin user.
ldap.admin.user.object.classes=organizationalPerson,top,person,inetOrgPerson
# Role filter for LDAP admin.
ldap.admin.role.filter=cn\=%s
# Base DN for LDAP admin role.
ldap.admin.role.base.dn=ou\=Role,dc\=fess,dc\=codelibs,dc\=org

    public static final String LABELS_LDAP_PROVIDER_URL = "{labels.ldapProviderUrl}";

    /** The key of the message: User DN */
    public static final String LABELS_LDAP_SECURITY_PRINCIPAL = "{labels.ldapSecurityPrincipal}";

    /** The key of the message: Bind DN */
    public static final String LABELS_LDAP_ADMIN_SECURITY_PRINCIPAL = "{labels.ldapAdminSecurityPrincipal}";