232             log.println("ERROR: could not query for 'isNodeExpanded()': " + ex.toString());  in _isNodeExpanded()
243                 log.println("ERROR: could not collapse node: " + ex.toString());  in _isNodeExpanded()
246                 log.println("ERROR: could not collapse node: " + ex.toString());  in _isNodeExpanded()
256                 log.println("ERROR: could not expand node: " + ex.toString());  in _isNodeExpanded()
259                 log.println("ERROR: could not expand node: " + ex.toString());  in _isNodeExpanded()
272             log.println("ERROR: could not query for 'isNodeExpanded()': " + ex.toString());  in _isNodeExpanded()
290             log.println("ERROR: could not query for 'isNodeCollapsed()': " + ex.toString());  in _isNodeCollapsed()
301                 log.println("ERROR: could not collapse node: " + ex.toString());  in _isNodeCollapsed()
304                 log.println("ERROR: could not collapse node: " + ex.toString());  in _isNodeCollapsed()
314                 log.println("ERROR: could not expand node: " + ex.toString());  in _isNodeCollapsed()
317                 log.println("ERROR: could not expand node: " + ex.toString());  in _isNodeCollapsed()
330             log.println("ERROR: could not query for 'isNodeCollapsed()': " + ex.toString());  in _isNodeCollapsed()
344 …    log.println("ERROR: could not call method 'makeNodeVisible()' successfully: " + ex.toString());  in _makeNodeVisible()
347 …    log.println("ERROR: could not call method 'makeNodeVisible()' successfully: " + ex.toString());  in _makeNodeVisible()
354 …      log.println("ERROR: could not call method 'isNodeVisible()' successfully: " + ex.toString());  in _makeNodeVisible()
400             log.println("ERROR: could not collapse node: " + ex.toString());  in _addTreeExpansionListener()
403             log.println("ERROR: could not collapse node: " + ex.toString());  in _addTreeExpansionListener()
421             log.println("ERROR: could not expand node: " + ex.toString());  in _addTreeExpansionListener()
424             log.println("ERROR: could not expand node: " + ex.toString());  in _addTreeExpansionListener()
438             log.println("ERROR: could not collapse node: " + ex.toString());  in _addTreeExpansionListener()
441             log.println("ERROR: could not collapse node: " + ex.toString());  in _addTreeExpansionListener()
463             log.println("ERROR: could not collapse node: " + ex.toString());  in _removeTreeExpansionListener()
466             log.println("ERROR: could not collapse node: " + ex.toString());  in _removeTreeExpansionListener()
481             log.println("ERROR: could not expand node: " + ex.toString());  in _removeTreeExpansionListener()
484             log.println("ERROR: could not expand node: " + ex.toString());  in _removeTreeExpansionListener()
498             log.println("ERROR: could not collapse node: " + ex.toString());  in _removeTreeExpansionListener()
501             log.println("ERROR: could not collapse node: " + ex.toString());  in _removeTreeExpansionListener()
592             log.println("ERROR: could not start editing at node: " + ex.toString());  in _addTreeEditListener()