Customize 401 Unauthorized error message in Spring Oauth

Question

I want to customize 401 Unauthorized error page in spring Oauth 2-2.3.3

Right now I am getting below error form Spring Oauth

<UnauthorizedException><error>unauthorized</error><error_description>Full authentication is required to access this resource</error_description></UnauthorizedException>

I have written CustomWebResponseExceptionTranslator class that extends DefaultWebResponseExceptionTranslator

public class CustomWebResponseExceptionTranslator extends DefaultWebResponseExceptionTranslator {
    @Override
    public ResponseEntity<OAuth2Exception> translate(Exception e) throws Exception {
       // custom logic
    }
   }

I have configured this CustomWebResponseExceptionTranslator in @EnableResourceServer But this is not getting invoked. Am I missing anything else?

@Import(ServerSecurityConfig.class)
@EnableResourceServer
public class ResourceServerConfiguration extends ResourceServerConfigurerAdapter  {

    @Override
    public void configure(ResourceServerSecurityConfigurer resources) {
        OAuth2AuthenticationEntryPoint oAuth2AuthenticationEntryPoint = new OAuth2AuthenticationEntryPoint();
        oAuth2AuthenticationEntryPoint.setExceptionTranslator(new CustomWebResponseExceptionTranslator());
        resources.authenticationEntryPoint(oAuth2AuthenticationEntryPoint);
    }

```