jersey - Checking Principal-user by Injected SecurityContext inside the constructor of a web resource -

i'm relatively new jersey , jax-rs, can't find way in documentation use of securitycontext inside constructor of resource.

our oauth implementation such requests on rest api intercepted implementation of resourcefilter. resource filter sets user principal calling:

containerrequest.setsecuritycontext(new mysecuritycontext(user)); 

... inside containerrequest.filter() method, wwith concrete class mysecuritycontext, as:

public class mysecuritycontext implements securitycontext {      private final user principal;      public mysecuritycontext(final user user) {         this.principal = user;     }      @override     public string getauthenticationscheme() {         return securitycontext.form_auth;     }      @override     public principal getuserprincipal() {         return principal;     }      @override     public boolean issecure() {         return false;      }      @override     public boolean isuserinrole(string role) {         return principal.getroles().contains(role);     } } 

now want use user principal in constructor of webresource before @get/@post/@delete method called. i've tried injecting

@context securitycontext 

..into constructor argument list call getuserprincipal() yields null.

is there way check principal user in constructor of webresource?

thanks!

it works me if inject api endpoint:

@post @resourcefilters({myauthenticationfilter.class}) public response foo(@context httpservletrequest request, @context securitycontext security) {     final principal principal = security.getuserprincipal();     [...]     return response.status(response.status.ok).build(); }