Most developers set a breakpoint, read a few variables, and stop there. The debugger in IntelliJ IDEA does far more, and by our own usage data, a lot of it goes untouched. None of it is hidden; it's all documented, just a few clicks past the surface.

This session is a guided tour of what the debugger can actually do, shown through small, focused examples rather than one long bug hunt. I'll demo the features I reach for in real work, live.

* Change a running program: HotSwap new code, drop a frame to re-run a method, throw an exception to hit an error path, all without restarting
* Breakpoints past the basics: non-suspending, dependent, lambda, and wildcard method breakpoints
* Inspect runtime state in depth: custom renderers, the memory view, and step-by-step stream chain tracing
* Beyond local and single-threaded: async stack traces and attaching to a remote JVM in Kubernetes

You will learn how much more the debugger can do than locate bugs, and which of these features are worth adding to your daily workflow.

100% live coding session.