This worries me greatly because my startup's product is based on Java, which gave us an advantage over others in our space for being able to work across Mac and

This worries me greatly because my startup's product is based on Java, which gave us an advantage over others in our space for being able to work across Mac and Windows while maintaining a great user experience thanks to a lot of customization on our part (see profile). While I concede that Java has lost relevance on Mac, there are outliers like ourselves who've written native looking Java software and don't have a viable route should the worst case scenario arise. My only inside knowledge is that the Java "team" within Apple was very small, which explains why it constantly lagged behind on updates.