source: https://www.securityfocus.com/bid/972/info
By requesting a long URL from a Novell Groupwise 5.5 webserver with the Enhancement Pack installed, it is possible to cause the server to abend, the Java.nlm to take up all available CPU resource, or to stop the post office service. The server will need to be rebooted to restore normal operation.
http ://target/servlet/long string of 200+ characters