public boolean hasArbitraryAttributes() {
        return !arbitraryAttributes.isEmpty();
    }
Returns whether at least one arbitrary attribute name/value pair has
been associated with this object.

@return
    true if this object has at least one arbitrary attribute set, false
    otherwise.
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/apache/guacamole/auth/jdbc/base/ObjectModel.java