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.

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.

Virtual threads are being proposed for Java, in an effort to dramatically reduce the effort required to write, maintain, and observe high-throughput concurrent applications. A draft JDK ...