From f2b8efa0c303364740fd2555a2b4904a9bcd1d12 Mon Sep 17 00:00:00 2001
From: Ashok Priyadarshi <ashok.bit99@gmail.com>
Date: Fri, 27 Mar 2026 13:34:19 +0530
Subject: [PATCH] fix(parser): honor inferSchemaType for OAS 3.1 enum schemas

---
 .../v3/parser/util/OpenAPIDeserializer.java   |  2 +-
 .../parser/test/OAI31DeserializationTest.java | 53 +++++++++++++++++++
 2 files changed, 54 insertions(+), 1 deletion(-)

diff --git a/modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/util/OpenAPIDeserializer.java b/modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/util/OpenAPIDeserializer.java
index 421822dd3b..ba0e8b5724 100644
--- a/modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/util/OpenAPIDeserializer.java
+++ b/modules/swagger-parser-v3/src/main/java/io/swagger/v3/parser/util/OpenAPIDeserializer.java
@@ -4020,7 +4020,7 @@ public Schema getJsonSchema(JsonNode jsonNode, String location, ParseResult resu
 				}
 			}
 
-		} else {
+		} else if (result.isInferSchemaType()) {
 			// may have an enum where type can be inferred
 			JsonNode enumNode = node.get("enum");
 			if (enumNode != null && enumNode.isArray()) {
diff --git a/modules/swagger-parser-v3/src/test/java/io/swagger/v3/parser/test/OAI31DeserializationTest.java b/modules/swagger-parser-v3/src/test/java/io/swagger/v3/parser/test/OAI31DeserializationTest.java
index 3860e76893..ba83915623 100644
--- a/modules/swagger-parser-v3/src/test/java/io/swagger/v3/parser/test/OAI31DeserializationTest.java
+++ b/modules/swagger-parser-v3/src/test/java/io/swagger/v3/parser/test/OAI31DeserializationTest.java
@@ -1035,6 +1035,59 @@ public void test31Issue1821() {
         assertEquals(id.getTypes().iterator().next(), "string");
     }
 
+    @Test(description = "Test Issue 1964 with inferSchemaType disabled")
+    public void test31Issue1964InferSchemaTypeDisabled() {
+        ParseOptions options = new ParseOptions();
+        options.setInferSchemaType(false);
+
+        String yaml = "openapi: 3.1.0\n" +
+                "info:\n" +
+                "  version: 1.0.0\n" +
+                "  title: Example\n" +
+                "paths:\n" +
+                "  /somePath:\n" +
+                "    get:\n" +
+                "      operationId: getSomePath\n" +
+                "      responses:\n" +
+                "        '200':\n" +
+                "          description: OK\n" +
+                "          content:\n" +
+                "            application/json:\n" +
+                "              schema: {}\n" +
+                "components:\n" +
+                "  schemas:\n" +
+                "    ArrayContainsValue:\n" +
+                "      type: array\n" +
+                "      contains:\n" +
+                "        enum:\n" +
+                "          - 1\n" +
+                "    AdditionalpropertiesBeingFalseDoesNotAllowOtherProperties:\n" +
+                "      $schema: https://json-schema.org/draft/2020-12/schema\n" +
+                "      properties:\n" +
+                "        foo: {}\n" +
+                "        bar: {}\n" +
+                "      patternProperties:\n" +
+                "        ^v: {}\n" +
+                "      additionalProperties: false\n";
+
+        SwaggerParseResult result = new OpenAPIV3Parser().readContents(yaml, null, options);
+        OpenAPI openAPI = result.getOpenAPI();
+        assertNotNull(openAPI);
+        assertTrue(result.getMessages().isEmpty(), String.valueOf(result.getMessages()));
+
+        Schema arrayContainsValue = openAPI.getComponents().getSchemas().get("ArrayContainsValue");
+        assertNotNull(arrayContainsValue.getContains());
+        assertNull(arrayContainsValue.getContains().getType());
+        assertNull(arrayContainsValue.getContains().getTypes());
+
+        Schema objectWithoutExplicitType = openAPI.getComponents().getSchemas()
+                .get("AdditionalpropertiesBeingFalseDoesNotAllowOtherProperties");
+        assertTrue(objectWithoutExplicitType.getAdditionalProperties() instanceof Schema);
+        assertFalse(((Schema) objectWithoutExplicitType.getAdditionalProperties()).getBooleanSchemaValue());
+        assertNull(objectWithoutExplicitType.getType());
+        assertNull(objectWithoutExplicitType.getTypes());
+    }
+
     @Test(description = "Test safe resolving")
     public void test31SafeURLResolving() {
         ParseOptions parseOptions = new ParseOptions();