Before understanding stack trace let use understands how Java applications are executed. Whenever a java application is executed, Heap is used to allocate memory at run time for various objects; apart from heap run time stack is created which is filled and removed for the methods and constructors calls. When […]

Stack Trace in Java

I was trying to run mvn commands for PetClinic Spring Application available at The problem was Firewall setting and hence my mvn command was not working. It failed to download. In this case where you from behind a proxy, no dependencies will be downloaded.

Solved: Enable proxy setting in Maven