Consistently override canRead(…) / canWrite(…) in ALPS converter.

This commit has unified the canRead(…) / canWrite(…) call chains to consistently end up in the overload taking a ResolvableType. We now override these to let the ALPS converter only kick in to render Alps instances.

Related: GH-2533.

Author: odrotbohm

spring-data-rest-webmvc/src/main/java/org/springframework/data/rest/webmvc/alps/AlpsJacksonJsonHttpMessageConverter.java

@@ -92,14 +92,10 @@ public AlpsJacksonJsonHttpMessageConverter(JsonMapper objectMapper,
 	}
 
 	@Override
-	public boolean canWrite(Class<?> clazz, @Nullable MediaType mediaType) {
-		return (clazz.isAssignableFrom(Alps.class) || clazz.isAssignableFrom(RootResourceInformation.class))
-				&& super.canWrite(clazz, mediaType);
-	}
+	public boolean canWrite(ResolvableType type, Class<?> clazz, @Nullable MediaType mediaType) {
 
-	@Override
-	public boolean canRead(Class<?> type, @Nullable MediaType mediaType) {
-		return false;
+		return (clazz.isAssignableFrom(Alps.class) || clazz.isAssignableFrom(RootResourceInformation.class))
+				&& super.canWrite(type, clazz, mediaType);
 	}
 
 	@Override