int destParentTreeNextKey = -1;
COSDictionary destParentTreeDict = null;
COSDictionary srcParentTreeDict = null;
COSArray destNumbersArray = null;
COSArray srcNumbersArray = null;
PDMarkInfo destMark = destCatalog.getMarkInfo();
PDStructureTreeRoot destStructTree = destCatalog.getStructureTreeRoot();
PDMarkInfo srcMark = srcCatalog.getMarkInfo();
PDStructureTreeRoot srcStructTree = srcCatalog.getStructureTreeRoot();
if (destStructTree != null)
{
PDNumberTreeNode destParentTree = destStructTree.getParentTree();
destParentTreeNextKey = destStructTree.getParentTreeNextKey();