Why is spawning threads in Java EE container discouraged?

Question

One of the first things I\'ve learned about Java EE development is that I shouldn\'t spawn my own threads inside a Java EE container. But when I come to think about it, I do

Answer 1

Concurrency Utilities for Java EE

There is now a standard, and correct way to create threads with the core Java EE API:

• JSR 236: Concurrency Utilities for Java™ EE

By using Concurrency Utils, you ensure that your new thread is created, and managed by the container, guaranteeing that all EE services are available.

Examples here