From ba619010be62868d57cdc2667e6144c64be12a37 Mon Sep 17 00:00:00 2001
From: William Cheng <wing328hk@gmail.com>
Date: Thu, 19 Sep 2024 12:08:35 +0800
Subject: [PATCH] pre-populate info if its not defined

---
 .../openapitools/codegen/OpenAPINormalizer.java   | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java b/modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java
index d67bb078864..c78fa6c55af 100644
--- a/modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java
+++ b/modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java
@@ -20,6 +20,7 @@ package org.openapitools.codegen;
 import io.swagger.v3.oas.models.*;
 import io.swagger.v3.oas.models.callbacks.Callback;
 import io.swagger.v3.oas.models.headers.Header;
+import io.swagger.v3.oas.models.info.Info;
 import io.swagger.v3.oas.models.media.*;
 import io.swagger.v3.oas.models.parameters.Parameter;
 import io.swagger.v3.oas.models.parameters.RequestBody;
@@ -283,10 +284,24 @@ public class OpenAPINormalizer {
             this.openAPI.getComponents().setSchemas(new HashMap<String, Schema>());
         }
 
+        normalizeInfo();
         normalizePaths();
         normalizeComponentsSchemas();
     }
 
+    /**
+     * Pre-populate info if it's not defined.
+     */
+    private void normalizeInfo() {
+        if (this.openAPI.getInfo() == null) {
+            Info info = new Info();
+            info.setTitle("OpenAPI");
+            info.setVersion("0.0.1");
+            info.setDescription("OpenAPI");
+            this.openAPI.setInfo(info);
+        }
+    }
+
     /**
      * Normalizes inline models in Paths
      */