I've noticed with the event bases tests, the more logging, security debug enabled, less events are dropped, or the test passes.
On one test, I've found after teardown commences, that permissions are denied, the number denied coincided (at least on one test, will try more later) with the number of missing events. The new DynamicPolicyProvider implementation, responds to interruption, by returning a false result early, if interrupted, rather than continue, this makes sense for ProtectionDomain checks occuring in parallel, where the first to fail causes PD checks belonging to the same context to be cancelled using Future.cancel. This may be behind the failures. Cheers, Peter.