Malformed HTTP Requests - Are the JVM's doomed by this?

Hello,

We have a third party application (Qualys) that is running scans on all ports on backend hosts (AIX), the issue is that these are logged into the STDOUT from the JVM as Malformed Requests.  I've already updated our ticket we have with support, but would like to know if other folks had this sort of thing go on.

We are not 100% sure if this is just a red herring issue for us or not, but we have some apps going down once in a while due to stuck threads, and we do see these bad http requests in the logs too (they are up above in the log).  It almost seems like after the threshold is met, we then run into the stuck threads (this is bad news when you get this).