Copy the title field when creating the ArraySchema object in processNormalize31Spec()

Author: lucy66hw

modules/openapi-generator/src/main/java/org/openapitools/codegen/OpenAPINormalizer.java

@@ -860,7 +860,7 @@ protected void normalizeProperties(Map<String, Schema> properties, Set<Schema> v
         }
         for (Map.Entry<String, Schema> propertiesEntry : properties.entrySet()) {
             Schema property = propertiesEntry.getValue();
-            
+
             // remove x-internal if needed (same logic as normalizeComponentsSchemas)
             if (property.getExtensions() != null && getRule(REMOVE_X_INTERNAL)) {
                 Object xInternalValue = property.getExtensions().get(X_INTERNAL);

modules/openapi-generator/src/test/resources/3_1/issue_18291.yaml

@@ -66,4 +66,15 @@ components:
             - type: integer
           maxItems: 3
           minItems: 3
-        - type: array
+        - type: array
+    OneOfArrayWithTitle:
+      oneOf:
+        - title: dog_array
+          type: array
+          items:
+            type: string
+        - title: cat_object
+          type: object
+          properties:
+            name:
+              type: string