def collect_impl(self):
        """
        overrides DistJarChange and DistClassChange from the underlying
        DistChange with DistJarReport and DistClassReport instances
        """

        for c in DistChange.collect_impl(self):
            if isinstance(c, DistJarChange):
                if c.is_change():
                    ln = DistJarReport.report_name
                    nr = self.reporter.subreporter(c.entry, ln)
                    c = DistJarReport(c.ldata, c.rdata, c.entry, nr)
            elif isinstance(c, DistClassChange):
                if c.is_change():
                    ln = DistClassReport.report_name
                    nr = self.reporter.subreporter(c.entry, ln)
                    c = DistClassReport(c.ldata, c.rdata, c.entry, nr)
            yield c
overrides DistJarChange and DistClassChange from the underlying
        DistChange with DistJarReport and DistClassReport instances