Spring Data REST fails when setting version to openapi_3_1. Fixes #2516

Author: bnasslahsen

springdoc-openapi-starter-common/src/main/java/org/springdoc/core/utils/SpringDocDataRestUtils.java

@@ -281,7 +281,7 @@ else if (EMBEDDED.equals(propId)) {
 	 */
 	private void updateResponseSchemaEmbedded(Components components, EntityInfo entityInfo, Entry<String, Schema> entry, boolean openapi31) {
 		String entityClassName = linkRelationProvider.getCollectionResourceRelFor(entityInfo.getDomainType()).value();
-		ArraySchema arraySchema = (ArraySchema) ((ObjectSchema) entry.getValue()).getProperties().get(entityClassName);
+		ArraySchema arraySchema = (ArraySchema) entry.getValue().getProperties().get(entityClassName);
 		if (arraySchema != null) {
 			Schema itemsSchema = arraySchema.getItems();
 			Set<String> entitiesNames = entityInoMap.keySet();