public boolean isDefault() {
        return isDefault;
    }
Returns true if this privacy list is the default list to apply for the user. Default
privacy lists can be overridden per session by setting an active privacy list.

@return true if this privacy list is the default list to apply for the user.
xmppserver/src/main/java/org/jivesoftware/openfire/privacy/PrivacyList.java