* Instantiate method filter if any.
*/
String methodFilterGlob = Strings.emptyToNull(System.getProperty(SysGlobals.SYSPROP_TESTMETHOD()));
Filter methodFilter = Filter.ALL;
if (methodFilterGlob != null) {
methodFilter = new MethodGlobFilter(methodFilterGlob);
}
/*
* Important. Run each class separately so that we get separate
* {@link RunListener} callbacks for the top extracted description.