Original link: Critique of JEP 505: Structured Concurrency (Fifth Preview) / SoftwareMill blog.
Java 19 added an incubator/preview feature to Java: structured concurrency. It is not final yet.
Basically structure concurrency is a scope where a bunch of virtual threads belong to that scope. That does provide some structure for the threads.
But the author is not happy about some of the implementation details.
Which is sort of what incubator/preview exist for.