gadget questions

gadget answers

• Design pattern to guarantee only one Runnable object of particular id value is being executed by the pool
• Are there delegates in Java 8?
• Spring MVC: How to return different type in ResponseEntity body
• Required String parameter is not present error in Spring MVC
• Unable to run testng from command line
• Cannot get Spring MVC 3.2.4 to serve jsp with UrlBasedViewResolver