String rev = myEntries.getPropertyValue(myName, SVNProperty.COPYFROM_URL);
String rev = myEntries.getPropertyValue(myName, SVNProperty.COPYFROM_REVISION);
    public long getCopyFromRevision() {        String rev = myEntries.getPropertyValue(myName, SVNProperty.COPYFROM_URL);        if (rev == null) {            return -1;        }        return Long.parseLong(rev);    }