@Configuration
    @EnableResourceServer
    protected static class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {

.....

        @Override
        public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
            resources
                    .expressionHandler(new CustomWebSecurityExpressionHandler())
                    .tokenStore(tokenStore())
                    .tokenServices(customTokenServices())
                    .resourceId(RESOURCE_ID);

        }


        @Bean
        @Primary
        public CustomTokenServices customTokenServices() throws Exception {
            CustomTokenServices tokenServices = new CustomTokenServices();
            tokenServices.setSupportRefreshToken(true);
            tokenServices.setTokenStore(tokenStore());
            tokenServices.setClientDetailsService(clientDetailsService());
            return tokenServices;
        }

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'springSecurityFilterChain' defined in class path resource [org/springframework/security/config/annotation/web/configuration/WebSecurityConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.Filter]: Factory method 'springSecurityFilterChain' threw exception; nested exception is java.lang.IllegalStateException: @Bean method ResourceServerConfiguration.customTokenServices called as a bean reference for type [com.zzzzzzzzz.config.CustomTokenServices] but overridden by non-compatible bean instance of type [com.sun.proxy.$Proxy210]. Overriding bean of same name declared in: class path resource [com/zzzzzzzzzzz/config/OAuth2Config$ResourceServerConfiguration.class]
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:599)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1173)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1067)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:513)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:296)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:762)
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:372)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1187)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1176)
	at com.zzzzzzzzzzzz.Bootstrap.main(Bootstrap.java:107)
Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.Filter]: Factory method 'springSecurityFilterChain' threw exception; nested exception is java.lang.IllegalStateException: @Bean method ResourceServerConfiguration.customTokenServices called as a bean reference for type [com.zzzzzzzzzzzz.config.CustomTokenServices] but overridden by non-compatible bean instance of type [com.sun.proxy.$Proxy210]. Overriding bean of same name declared in: class path resource [com/zzzzzzzzzzzzzzzz/config/OAuth2Config$ResourceServerConfiguration.class]
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:189)
	at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:588)
	... 20 common frames omitted
Caused by: java.lang.IllegalStateException: @Bean method ResourceServerConfiguration.customTokenServices called as a bean reference for type [com.zzzzzzzzzzzz.config.CustomTokenServices] but overridden by non-compatible bean instance of type [com.sun.proxy.$Proxy210]. Overriding bean of same name declared in: class path resource [com/zzzzzzzzzzzz/config/OAuth2Config$ResourceServerConfiguration.class]
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.obtainBeanInstanceFromFactory(ConfigurationClassEnhancer.java:402)
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:361)
	at com.zzzzzz.config.OAuth2Config$ResourceServerConfiguration$$EnhancerBySpringCGLIB$$340cd24b.customTokenServices(<generated>)
	at com.zzzzzzzzzz.config.OAuth2Config$ResourceServerConfiguration.configure(OAuth2Config.java:99)
	at org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration.configure(ResourceServerConfiguration.java:147)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.getHttp(WebSecurityConfigurerAdapter.java:199)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.init(WebSecurityConfigurerAdapter.java:283)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter.init(WebSecurityConfigurerAdapter.java:68)
	at org.springframework.security.oauth2.config.annotation.web.configuration.ResourceServerConfiguration$$EnhancerBySpringCGLIB$$45b78fc8.init(<generated>)
	at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.init(AbstractConfiguredSecurityBuilder.java:367)
	at org.springframework.security.config.annotation.AbstractConfiguredSecurityBuilder.doBuild(AbstractConfiguredSecurityBuilder.java:320)
	at org.springframework.security.config.annotation.AbstractSecurityBuilder.build(AbstractSecurityBuilder.java:39)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration.springSecurityFilterChain(WebSecurityConfiguration.java:98)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$406f1142.CGLIB$springSecurityFilterChain$3(<generated>)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$406f1142$$FastClassBySpringCGLIB$$356a1535.invoke(<generated>)
	at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228)
	at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:358)
	at org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration$$EnhancerBySpringCGLIB$$406f1142.springSecurityFilterChain(<generated>)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:162)