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The JSF 1.2 spec Section 11.3 Specifies that the before and after phase of a Phase Listener must complete. Thus All Exceptions that occur within the Phase Listener are swallowed. Unfortunately this means that neither of the methods at http://wiki.apache.org/myfaces/Handling_Server_Errors works for these types of exceptions.
Please See http://forum.java.sun.com/thread.jspa?threadID=662657&messageID=3885082
What we have done here is Catch the Exception in the Phase Listener and Re-Direct to the Error Page. We have created an Error Handler Class that does that for us.
public class AErrorHandler {
private static final Log log = LogFactory.getLog(AErrorHandler.class); public static final String ERROR_PAGE="/errorpages/error.jsf";
public static void displayException(FacesContext _facesContext, Exception _ex) { HttpServletResponse response = (HttpServletResponse) _facesContext.getExternalContext().getResponse(); HttpServletRequest request = (HttpServletRequest) _facesContext.getExternalContext().getRequest(); try { setPageErrorData(_ex, request); response.sendRedirect(request.getContextPath()+ERROR_PAGE); _facesContext.responseComplete(); _ex.printStackTrace(); } catch (IOException ex ) { _ex.printStackTrace(); ex.printStackTrace(); } throw new AbortProcessingException("AErrorHandler: displayException() - An Error has occurred."); }
public static void setPageErrorData(Throwable _e, HttpServletRequest _request) { ErrorData errorData = new ErrorData(); errorData.setException(_e); _request.getSession().setAttribute(“errorData”, errorData); } }
Where errorData is a request Scoped Backing Bean on our Error Page
Tom
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