GeeCON 2023: David Matejcek - Fighting the method Debt of GlassFish

GlassFish is back, better than it always was, but there's inactive a long way to go. Is it worth to fight the method debt of last 20 years? Isn't it insane? There are many akin projects, both crucial and obsoleted, besides large and complicated to build them again on a green field. besides many companies are afraid of extremist changes, while their projects are little and little secure, usable, capable of integration with modern technologies. They are not scalable but frequently their burden increases exponentially. What they can do? How costly it can be? What is the outcome? Let's take the GlassFish as an example. Where does the GlassFish swim? Do you inactive remember the word 'agile'?