Update changes based on the review

Author: geso02

basyx.aasregistry/basyx.aasregistry-service/src/main/java/org/eclipse/digitaltwin/basyx/aasregistry/service/configuration/WebMvcConfig.java

@@ -34,14 +34,14 @@
 @Component
 public class WebMvcConfig implements WebMvcConfigurer {
 
-	private MappingJackson2HttpMessageConverter converter;
+	private final MappingJackson2HttpMessageConverter converter;
 
 	public WebMvcConfig(MappingJackson2HttpMessageConverter converter) {
 		this.converter = converter;
 	}
 
 	@Override
-	public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
+	public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
 		converters.add(converter);
 	}
 

basyx.submodelregistry/basyx.submodelregistry-service/src/main/java/org/eclipse/digitaltwin/basyx/submodelregistry/service/configuration/WebMvcConfig.java

@@ -34,14 +34,14 @@
 @Component
 public class WebMvcConfig implements WebMvcConfigurer {
 
-	private MappingJackson2HttpMessageConverter converter;
+	private final MappingJackson2HttpMessageConverter converter;
 
 	public WebMvcConfig(MappingJackson2HttpMessageConverter converter) {
 		this.converter = converter;
 	}
-
+	
 	@Override
-	public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
+	public void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
 		converters.add(converter);
 	}