Tests fail on the build-server for quite some time now.
This is because somehow the HTML-unit-tests do not work because the web-ui can't be reached.
It works when no other karaf is running. Although itests should open the web-ui on port 8091 (as port 8090 is blocked by opencit) the itests get a HTTP500
In addition those itests are not the only once failing. There are even some "unit" tests which are failing if another instance of karaf is running. Since the tests are quite a bunch and need a lot of time this issue is considered quite critical since it limits the number of work you can do besides a ongoing test-run.
A possible solution (I think) could be to use the maven-helper-plugin to configure the ports used in the tests .