This is mainly due to the fact that the Java ThreadPool does not have a mechanism to detect a thread hang. We could try a Cached thread pool, but it also has problems.

Part 2 of Java Thread Programming describes techniques for working with Java threads. It offers the best thread-pooling coverage and a great chapter on breaking out of blocked I/O.

To unlock the power of virtual threads in Java, developers must understand how they work versus traditional threads and how to avoid the problem of pinning.