Re-Hello ! In addition to my question, i've seen that spy the reset() and constructor call of my actionForm :
life cylcle : - constructor -> first access on the jsp - reset -> first access on the jsp - display of the jsp and submit - constructor -> after submiting - reset -> after submiting - the form is transmitted to an action who forward to another jsp Each time i came back to the jsp : - reset -> each time a leave the jsp As i mention before, i used combo box. They are correctly initalised the first time but never changed whatever the reset method does (normally) and whatever is set in the String[]... Regards.