question: @ SuppressWarnings ( "unchecked" ) private void addTreeBranch ( CatalogTreeNode node ) { if ( log . isDebugEnabled ( ) ) { log . debug ( "addTreeBranch called for node= " + node . toString ( ) + ", has " + node . getChildCount ( ) + " children" ) ; } CatalogTreeNode root = ( CatalogTreeNode ) _model . getRoot ( ) ; Enumeration < CatalogTreeNode > e = node . children ( ) ; while ( e . hasMoreElements ( ) ) { CatalogTreeNode n = e . nextElement ( ) ; addNode ( root , n ) ; } }
target:  Recursively add the branch nodes to display tree