# Uses of Class
javax.swing.tree.ExpandVetoException

Packages that use ExpandVetoException
Package | Description
--- | ---
javax.swing | Provides a set of "lightweight" (all-Java language) components that, to the maximum degree possible, work the same on all platforms.
javax.swing.event | Provides for events fired by Swing components.

## Uses of ExpandVetoException in javax.swing

Methods in javax.swing that throw ExpandVetoException
Modifier and Type | Method | Description
--- | --- | ---
`void` | JTree.`fireTreeWillCollapse​(TreePath path)` | Notifies all listeners that have registered interest for notification on this event type.
`void` | JTree.`fireTreeWillExpand​(TreePath path)` | Notifies all listeners that have registered interest for notification on this event type.

## Uses of ExpandVetoException in javax.swing.event

Methods in javax.swing.event that throw ExpandVetoException
Modifier and Type | Method | Description
--- | --- | ---
`void` | TreeWillExpandListener.`treeWillCollapse​(TreeExpansionEvent event)` | Invoked whenever a node in the tree is about to be collapsed.
`void` | TreeWillExpandListener.`treeWillExpand​(TreeExpansionEvent event)` | Invoked whenever a node in the tree is about to be expanded.