config-prettyfaces/src/main/java/com/ocpsoft/pretty/PrettyContext.java
public void sendError(int code, String message)
   {
      FacesContext facesContext = FacesContext.getCurrentInstance();
      Assert.notNull(facesContext, "FacesContext argument was null.");

      Object response = facesContext.getExternalContext().getResponse();
      if (response instanceof HttpServletResponse)
      {
         sendError(code, message, (HttpServletResponse) response);
         facesContext.responseComplete();
      }

   }
public void sendError(int code, String message)
   {
      FacesContext facesContext = FacesContext.getCurrentInstance();
      Assert.notNull(facesContext, "FacesContext argument was null.");

      Object response = facesContext.getExternalContext().getResponse();
      if (response instanceof HttpServletResponse)
      {
         sendError(code, message, (HttpServletResponse) response);
         facesContext.responseComplete();
      }

   }
public void sendError ( int code , String message ) { FacesContext facesContext = FacesContext . getCurrentInstance ( ) ; Assert . notNull ( facesContext , "FacesContext argument was null." ) ; Object response = facesContext . getExternalContext ( ) . getResponse ( ) ; if ( response instanceof HttpServletResponse ) { sendError ( code , message , ( HttpServletResponse ) response ) ; facesContext . responseComplete ( ) ; } }
<p>
Sends an error response to the client using the specified HTTP status
code.
</p>
<p>
Please note that this method can only be called from within the JSF
lifecycle as it needs the {@link FacesContext} to obtain the
{@link HttpServletResponse}. Please use
{@link #sendError(int, String, HttpServletResponse)} in all other
cases.
</p>

@param code the error status code
@param message the descriptive message
@see HttpServletResponse#sendError(int, String)
<p > Sends an error response to the client using the specified HTTP status code . < / p > <p > Please note that this method can only be called from within the JSF lifecycle as it needs the { @link FacesContext } to obtain the { @link HttpServletResponse } . Please use { @link #sendError ( int String HttpServletResponse ) } in all other cases . < / p >