@Override
    public boolean isCachable() {
        return true;
    }
Creates a new CaseInsensitivePatternDeserializer which deserializes
string values to Pattern objects with the case insensitive flag set.
extensions/guacamole-auth-ldap/src/main/java/org/apache/guacamole/auth/ldap/conf/CaseInsensitivePatternDeserializer.java