Virtual Threads (source: Microsoft). More about this feature is available in Oracle's Java Magazine article, " Coming to Java 19: Virtual threads and platform threads." Debugging in Java on VS Code is ...

Less than a month after Microsoft released a Visual Studio Code extension to provide Java debugging, the company announced it was such a big hit that it's been improved and open sourced, as promised.

Experimental support is offered for debugging Jupyter notebooks, so developers can set breakpoints in notebook cells, execute cells step-by-step, and use all other VS Code debugger features.