code: public static void dumpURLRewriters( ServletRequest request, PrintStream output )
      {
          ArrayList/*< URLRewriter >*/ rewriters = getRewriters( request );
  
          if ( output == null ) output = System.err;
          output.println( "*** List of URLRewriter objects: " + rewriters );
  
          if ( rewriters != null )
          {
              int count = 0;
              for ( Iterator i = rewriters.iterator(); i.hasNext(); )  
              {
                  URLRewriter rewriter = ( URLRewriter ) i.next();
                  output.println( "        " + count++ + ".  " + rewriter.getClass().getName() );
                  output.println( "            allows other rewriters: " + rewriter.allowOtherRewriters() );
                  output.println( "            rewriter: " + rewriter );
              }
          }
          else
          {
              output.println( "        No URLRewriter objects are registered with this request." );
          }
      }
docs: Print out information about the chain of URLRewriters in this request.
  
  @param request the current HttpServletRequest.
  @param output a PrintStream to output chain of URLRewriters in this request.
  If <code>null</null>, <code>System.err</code> is used.