This is strange, especially when sometime it happen, sometime it's not. Do you have any exception in server log ? can you post more information to help us reproduce the problem (sample code, screen capture) ? what is the gatein version you're using ?
Hi Vu , thanks for your reply , the problem what causeed the issue is that all of the protlets in one portal page will exe the doView method each time , even the portlet will not dispaly (hide) . I want to ask if there is some methods to avoid this happen . If the portlet will not display and it will no need to exe the doView method .