w encountered by the same user session and
 then cleared out.  It is important to note that &#8220;next
 view&#8221; may have the same view id as the previous view.</p>
 
 <div class="changed_added_2_0">

 <p><b>Implementation Requirements</b></p>

 <p>The flash is a <span class="changed_modified_2_0_a">session</span>
 scoped object that must be thread safe.</p>

 <p>The implementation requirements will be described in terms of the
 runtime traversing the Jakarta Server Faces lifecycle.  The flash exposes a