-import org.springframework.security.Authentication;
-import org.springframework.security.GrantedAuthority;
-import org.springframework.security.context.SecurityContext;
-import org.springframework.security.context.SecurityContextHolder;
-import org.springframework.security.providers.anonymous.AnonymousAuthenticationToken;
+import org.springframework.security.authentication.AnonymousAuthenticationToken;
+import org.springframework.security.core.Authentication;
+import org.springframework.security.core.GrantedAuthority;
+import org.springframework.security.core.context.SecurityContext;
+import org.springframework.security.core.context.SecurityContextHolder;