Be a Java Debugger
"Debugger" Java Developer logger.info( " inside json parser " + json.toString()); System . out .println( "response " +gson.toJson(reponse)); . . . . Printing tons of sysout onto your console and checking the values of various attributes to resolve certain bugs ?! Sounds familiar! Debugging is the perfect choice in those situations. Not always we can fix the issues and fixes by just checking the logs or by going through the conventional ways. That's where debugging can give you an extra hand. Choosing the right IDE which helps you to easily enable debugging and connect to your application is key. Different IDEs have different ways to enable debuggers. For example: enabling debugging in Eclipse to debug an application that runs on Tomcat is quite different from an in-house application. Reference: here JPDA : Java Platform Debugger Architecture Even when your target application is not hosted in your local or if the target application hosted system doe