I created a filter class and forgot to set the async supported property to true. This resulted that my war didn't deploy/work when running inside tomcat 7.
I fixed that and it runs fine now, but I am surprised that I didn't see this earlier since I am using the tomcat7-maven-plugin to start an embedded tomcat instance to run my integration tests against which all ran fine. Can anyone explain the why because it is puzzling me. TIA, Bas