Well enough if you want a traditional 9-5 job (which is fine if it suits you) - pity Java is such a PITA to work with though and Oracle do charge a lot! for there product.
Trouble is if your company pivots and you have been doing Mainframe COBOL for 20 years - you might find transitioning to a new language hard.
Trouble is if your company pivots and you have been doing Mainframe COBOL for 20 years - you might find transitioning to a new language hard.