public String getPackedVersionString() {
   ICFLibAnyObj scopeDef;
   ICFBamVersionObj versionLeafDef = getVersionLeaf();
   List<String> invertedNodeNames = new ArrayList<String>();
   while (versionLeafDef != null) {
     invertedNodeNames.add(getVersionStringForLeafDef(versionLeafDef));
     scopeDef = versionLeafDef.getObjScope();
     if (scopeDef == null) {
       versionLeafDef = null;
     } else if (scopeDef instanceof ICFBamMinorVersionObj) {
       versionLeafDef = (ICFBamMinorVersionObj) scopeDef;
     } else if (scopeDef instanceof ICFBamMajorVersionObj) {
       versionLeafDef = (ICFBamMajorVersionObj) scopeDef;
     } else if (scopeDef instanceof ICFBamVersionObj) {
       versionLeafDef = (ICFBamVersionObj) scopeDef;
     } else {
       versionLeafDef = null;
     }
   }
   String ret = "";
   for (int idx = invertedNodeNames.size() - 1; idx >= 0; idx--) {
     if (ret.length() == 0) {
       ret = invertedNodeNames.get(idx);
     } else {
       ret = ret + invertedNodeNames.get(idx);
     }
   }
   return (ret);
 }