Series
Java concurrency, virtual threads, structured concurrency and scoped values in practice.
Java has long been a preferred language for building high-performance applications, thanks in part to its powerful concurrency capabilities. As demands for responsiveness and scalability grow, underst
In Java 21, virtual threads had one well-known catch: block inside a synchronized block and the virtual thread gets pinned to its carrier thread. That carrier, which is a real OS thread, can't run any
You turn on virtual threads in Spring Boot, run a load test, and the logs fill up with this: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection at org.springf
Here's a log line from the demo in this post. Request #3 came in without an X-Request-Id header, yet it was logged with the ID of a different request: http-nio-1 requestId=req-A handling reques
