Message10137

Why does this fail?
>>> from javax.swing.tree import DefaultTreeModel, DefaultMutableTreeNode, DefaultTreeCellRenderer
>>> class AModel(DefaultTreeModel):
...   def __init__(self):
...     super(AModel, self).__init__(DefaultMutableTreeNode())
... 
>>> a = AModel()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: Default constructor failed for Java superclass javax.swing.tree.DefaultTreeModel

But this works:
>>> class AModel(DefaultTreeModel):
...   def __init__(self):
...     DefaultTreeModel.__init__(self, DefaultMutableTreeNode())
... 
>>> a = AModel()
>>>