I'm seeing a really strange error and have no idea what it is. There were a bunch of us behind a router that were testing out our app on a production JBoss server. The app is done using JSP and EJB.
User A was on a "forgot password" page and User B was viewing another page and filling in some information. When User A clicked next to go to the next page in forgot password, there was an error. User A saw the page User B was on previously with their information already filled in on the page and at the bottom was the page that User A was expecting. That is, User B's page was appended to the start of the page User A was expecting to see.
Both pages are JSPs and both users were using different machines. JBoss threw an IllegalStateException in the logs and the following error was displayed on screen:
ERROR: ERROR X-Powered-By: Servlet 2.4; JBoss-4.2.2.GA (Build SVNTag=Jboss_4_2_2_GA date=200710221139/Tomcat 5.5 Content-Length: 1051 Keep-Alive: timeout=5, max=100 Connection: keep-Alive Content-Type: text/html;charset=ISO-8859-1
We are using "response.sendRedirect()" in our JSP code but always have the "return" statement after that.
Any help or hints to debug the problem would be greatly appreciated!