Warning Messages
Introduction
Like action messages, warning messages are displayed to the user but are a separate list so they can displayed in warning colours. Like action messages, the existence of a warning message does not count as a failed validation. Converters and validators write them if their message type is set to WARNING. Similar to action messages, they can be written using ValidationAware2.addActionWarning().
Actions should be a subclass of AbstractActionSupport or otherwise implement ValidationAware2.
Example JSP
Like action messages, the presence of warning messages can be checked and any presented, such as below.
<s:if test="hasActionWarnings()">
<DIV CLASS="warning_messages" ID="warning_messages">
<s:iterator value="actionWarnings">
<UL>
<LI><s:property /></LI>
</UL>
</s:iterator>
</DIV>
</s:if>