Advanced IntelliJ debugger features you’re missing out on
Blog post from Snyk
Debugging extends beyond basic IDE breakpoint use and is often under-taught, leaving developers to learn inefficient practices on the job despite debuggers’ ability to reveal detailed application behavior. The discussion highlights three IntelliJ features intended to improve this process: marker objects, which create named global references that can be watched across scopes and used in conditional breakpoints; custom data renderers, which make complex or framework-managed objects such as JPA repositories more informative in the watch panel without modifying application code; and memory tracking, which shows allocation differences between breakpoints and can track new instances of selected types with their allocation stack traces. These tools, available broadly across JetBrains IDEs but not all in VS Code, can complement profilers, help investigate identity, threading, data, and memory issues, and make debugging more systematic and exploratory.
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