Merge pull request #507 from bluesword12350/sword-dev

Bugfix: Missing '@Override' annotation on 'customizePropertySources()'

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/autoconfigure/DubboServiceAutoConfiguration.java

@@ -92,6 +92,7 @@ public class DubboServiceAutoConfiguration {
     @Bean(name = BASE_PACKAGES_PROPERTY_RESOLVER_BEAN_NAME)
     public PropertyResolver dubboScanBasePackagesPropertyResolver(ConfigurableEnvironment environment) {
         ConfigurableEnvironment propertyResolver = new AbstractEnvironment() {
+            @Override
             protected void customizePropertySources(MutablePropertySources propertySources) {
                 Map<String, Object> dubboScanProperties = PropertySourcesUtils.getSubProperties(environment, DUBBO_SCAN_PREFIX);
                 propertySources.addLast(new MapPropertySource("dubboScanProperties", dubboScanProperties));