The Teiid spring boot tests are commonly erroring out in travis. It usually is reported as Failed To Load Application Context - but the underlying problem differs. Here: https://api.travis-ci.org/v3/job/638096554/log.txt the issue is likely that tests are executing concurrently that reference the same vdb. The current NioVirtualFile logic for Teiid expects only one mount for a given zip. If you open another, then the previous is closed.