object Test { // not sure exactly what this is enforcing, but it was failing on // me due to some early boxing happening with the check for a // stack trace suppression system property, so I boosted the count. def main(args: Array[String]) { assert(runtime.BoxesRunTime.booleanBoxCount < 10, "Expected no more than 10 boolean boxings, found " + runtime.BoxesRunTime.booleanBoxCount) } }