I think Strus2 don’t instantiate the bean so you must instantiate perhaps in the prepare method or in the definition of the property class.
> On 2 Jan 2018, at 21:38, José Antonio Delgado Trujillo <jadt...@gmail.com> > wrote: > > If you have a form linked to a bean using key attribute, then when you > submitted, must you instantiate the bean before the call action populate the > properties? Or Strust2 instantiate automatically after you call the action. > > <form action=“a”> > <s:textField key=“bean.t”/> > <submit/> > > //The method execute of the A class action > > public class A extends AcctionSupport{ > private Object bean; > > public String void execute(){ > //Call business logic method > control(bean); > return SUCCESS; > } > } > > This throws a NullpointerException??? > > > > Un saludo, > José A. >