Java Development Tools

HI

I have developed a simple file upload [ JSP program] and another JSP program to read those uploaded files [to & from Oracle-Application-Server 10g/10.1.3.1.0 Oracle HTTP Server] using JDeveloper 11.1.1.0.2.

I am able to upload and read files BUT for few of the files [.pdf , .doc etc] i receive the following error when trying to read [by clicking on the hyperlink of the displayed file]

"*413 Request Entity Too Large*
*HTTP/1.1 413 Request Entity Too Large GMT Server: Oracle-Application-Server-10g/10.1.3.1.0 Oracle-HTTP-Server Connection: close Transfer-Encoding: chunked Content-Type: text/html; charset=iso-8859-1*

*Request Entity Too Large*
*The requested resource /upload/567//test_playe12 - Copy of the Original file.pdf*
*does not allow request data with GET requests, or the amount of data provided in the request exceeds the capacity limit*
*Additionally, a 413 Request Entity Too Large error was encountered while trying to use an ErrorDocument to handle the request.* "

- I am using POST method to send data
- i can't read the same file [23kb] if i just change its title and upload !

can anyone please give a hint as what could be going wrong . .

Thanks
pradeep