Sun GlassFish Enterprise Server v2.1.1 Developer's Guide

Setting the Shutdown Timeout

According to the Connector specification, while an application server shuts down, all resource adapters should be stopped. A resource adapter might hang during shutdown, since shutdown is typically a resource intensive operation. To avoid such a situation, you can set a timeout that aborts resource adapter shutdown if exceeded. The default timeout is 30 seconds per resource adapter module. To configure this timeout:

The Enterprise Server deactivates all message-driven bean deployments before stopping a resource adapter.