From a835f6ec0e2ed6986e29a548c722ae21a130b1b9 Mon Sep 17 00:00:00 2001
From: Katsuya Oda <katsuya@users.noreply.github.com>
Date: Mon, 5 Jul 2021 10:16:35 +0900
Subject: [PATCH] fix: missing vendor extensions in inlined objects #8064
 (#9810)

---
 .../main/java/org/openapitools/codegen/DefaultCodegen.java   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
index 72f6c72c016..1b0b007a46e 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/DefaultCodegen.java
@@ -3297,6 +3297,11 @@ public class DefaultCodegen implements CodegenConfig {
         }
         if (p.getExtensions() != null && !p.getExtensions().isEmpty()) {
             property.getVendorExtensions().putAll(p.getExtensions());
+        } else if (p.get$ref() != null) {
+          Schema referencedSchema = ModelUtils.getReferencedSchema(this.openAPI, p);
+          if (referencedSchema.getExtensions() != null && !referencedSchema.getExtensions().isEmpty()) {
+            property.getVendorExtensions().putAll(referencedSchema.getExtensions());
+          }
         }
 
         String type = getSchemaType(p);