I made some test, and found that the destroy() method of tag was not be called by the container every time when I open the jsp page.
But the destroy() was called every time when I reopen the same page in my WEBLOGIC envirment.
I think the jboss container should be config to fix the problem.
please give me a suggestion?
My project is at jboss-4.0.4 + windowXP.
I hava found the resolution on tomcat FAQ Bug 16001 - Tag_release() not invoked.
The web.xml of jbossweb-tomcat55.sar\conf need the configuration of