I'm troubleshooting a header injection problem for a customer with a 4.2.2 setup of Access Manager.
They do from time to time recive a error that kills one of there java application that doesn't handle http redirects well.
The error in apache error log is
" II Eval error: Bad-User invalid-user java.util.ConcurrentModificationException"
Has anybody any idea if this is a bug or a timing issu or something else?
Or any other suggestion how to try to figure out what is happening