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19.7. Configuring the EJB Asynchronous Invocation Service
19.7.1. EJB3 Asynchronous Invocation Service
The Asynchronous Invocation Service is an Enterprise JavaBeans container service that manages asynchronous invocation of session bean methods. This service maintains a configurable number of threads (a thread pool) that are allocated for asynchronous method execution.
Enterprise JavaBeans 3.1 allows for any method of a session bean (stateful, stateless or singleton) to be annotated to permit asynchronous execution.