different composite component stacks
 currently used by Mojarra.
 </p>

 <p>
 The stacks are identified by the <a href="CompositeComponentStackManager.StackType.html" title="enum in com.sun.faces.component"><code>CompositeComponentStackManager.StackType</code></a> enum which has two elements,
 <code>TreeCreation<code> and <code>Evaluation</code>.
 </p>

 <p>
 The <code>TreeCreation</code> stack represents the composite components that have been pushed by the TagHandlers
 responsible for building the tree.
 