Handle Exception in Jsp

[pedro costa]

Good Afternoon in my timezone.

I am using struts framework in my Web App development. I had parametrize the exception handling in the struts-config.xml file :

<global-exceptions>
    <exception key="sap-error" type="com.galpenergia.sgt.util.excepcoes.chained.user.UserException" path="/globalError.jsp"/>
    <exception key="global-error" type="java.lang.Exception" path="/globalError.jsp"/>
   </global-exceptions>

And in the globalError jsp i have the following page directive

<%@page isErrorPage="true" %>

When i try to get the message from the exception object , it tells me that the exception object is null.

<% if(exception != null) {%>
    <%=exception.getMessage() %>
<%}else{ %>
<p>Exception object is null</p>
<% }%>

Why is this happening ?

Thanks in advance.
Best regrads