if (mPartStat != null) {
if (hasPartStat()) {
    public String toString() {        StringBuffer toRet = new StringBuffer("ZATTENDEE:");        if (mCn != null) {            toRet.append("CN=").append(mCn).append(";");        }        if (mRole != null) {            toRet.append("ROLE=").append(mRole).append(";");        }        if (mPartStat != null) {            toRet.append("PARTSTAT=").append(mPartStat).append(";");        }        if (mRsvp!= null) {            toRet.append("RSVP=").append(mRsvp).append(";");        }                toRet.append(mAddress);        return toRet.toString();    }