If I run JBT tycho build locally for trunk, for example:
mvn clean install -fae -e -P default -f cdi/tests/pom.xml
and there is some test failures then I don't see any stacktrace in console. Just a text message from the JUnit test assert.
-Dsurefire.useFile=false does not help.
But I see the stacktrace in <target>/surefire-reports

In Beta1 branch it works fine.

I don't see stacktrace in console output in Hudson either but I'm not sure it's a problem there.
For example https://hudson.qa.jboss.com/hudson/view/DevStudio/view/DevStudio_Trunk/job/jbosstools-3.3_trunk.component--cdi/lastCompletedBuild/console
But for local builds it's very useful to see the full stacktrace in console.