if (myData == null) { myData = new TreeMap(); myEntries = new TreeSet(); }
    public SVNEntry addEntry(String name) {        if (myData != null && !myData.containsKey(name)) {            myData.put(name, new HashMap());            SVNEntry entry = new SVNEntry(this, name);            myEntries.add(entry);            setPropertyValue(name, SVNProperty.NAME, name);            return entry;        }        return null;    }