Portal application can't read request info

Question

hi all,
i use  portal application for change portal user's infos.but when i sent request info,
request.getServletRequest().getInputStream() method is cutting my sending line after 90. character.
in R3 side i use HTTP_POST function and fill request info (table paramater).
i tried to send 2 line(less than 90 character) in request info, but i can't read second line in java code.
Is IPortalComponentRequest accept only 90 character ?
how can i solve this problem , any idea ?
my code is below, variable "str" is filling only first 90 character;
     protected void doOnNodeReady(
               IPortalComponentRequest request,
               IEvent event) {
     String str = "";
     try {
          InputStream is = request.getServletRequest().getInputStream();
          InputStreamReader isr = new InputStreamReader(is);
          int c;
          while ((c = isr.read()) > -1) {
          str = str + (char) c;
            } catch (java.io.IOException ex) {
             str = "Error accessing input stream";
thanks

Answer 1

New discovery...If I shut down all instances of IE on my machine, then reopen my test form, it works. Once. The second time I try it I get the same peculiar behavior again, until I again shut down all instances of IE.