They're not taking a chance on a language only 5% of devs know, precisely because they know how painful it is to be chained to a legacy system. So they do every

They're not taking a chance on a language only 5% of devs know, precisely because they know how painful it is to be chained to a legacy system. So they do every new project in the industry standard language, which is Java. Problem is, the industry standard used to be COBOL. Sooner or later, if/when Java falls out of vogue and stops evolving, they will end up with two legacy systems instead of just one.