All that automatic checking sounds really nice to me, but the devil is always in the details. It's a non-starter for me that Jigsaw was going to break so many

All that automatic checking sounds really nice to me, but the devil is always in the details. It's a non-starter for me that Jigsaw was going to break so many existing programs. Would it be possible to leave Java standard libraries alone but make Jigsaw-style modules available for new programs? That wouldn't make Java startup times any faster, which was one of the motivations for Jigsaw, but at least new apps could be architected for safety and consistency.