Grokking Spring Boot
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Virtual Threads

These two log lines come from the same POST /bookings request, in the same build of the booking service. Only one property differs between the two runs:

Handling request on Thread[#58,http-nio-8113-exec-2,5,main]
Handling request on VirtualThread[#64,tomcat-handler-1]/runnable@ForkJoinPool-1-worker-1

The first request ran on one of Tomcat's pooled threads. The second ran on a virtual thread, which was at that moment running on a JDK worker thread called ForkJoinPool-1-worker-1. The code, the controller, and the response were identical.

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