From ecb3782a463f0b09ca57f4bc15aabcb4f23c6f7f Mon Sep 17 00:00:00 2001
From: "Badr.NassLahsen" <badr.nasslahsen@gmail.com>
Date: Mon, 6 Jan 2025 11:04:39 +0100
Subject: [PATCH] java.lang.ClassNotFoundException:
 kotlin.reflect.full.KClasses when upgrade from 2.7.0 to 2.8.0. Fixes #2834

---
 springdoc-openapi-starter-common/pom.xml          |  5 +++++
 .../configuration/SpringDocKotlinConfiguration.kt | 15 ++++++++++-----
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/springdoc-openapi-starter-common/pom.xml b/springdoc-openapi-starter-common/pom.xml
index 459240359..285b3dc32 100644
--- a/springdoc-openapi-starter-common/pom.xml
+++ b/springdoc-openapi-starter-common/pom.xml
@@ -72,6 +72,11 @@
 			<artifactId>kotlinx-coroutines-reactor</artifactId>
 			<scope>provided</scope>
 		</dependency>
+		<dependency>
+			<groupId>org.jetbrains.kotlin</groupId>
+			<artifactId>kotlin-reflect</artifactId>
+			<scope>provided</scope>
+		</dependency>
 		<!-- Spring Web /Data Rest/Hateoas && For Enhanced Pageable Support-->
 		<dependency>
 			<groupId>org.springframework.boot</groupId>
diff --git a/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/configuration/SpringDocKotlinConfiguration.kt b/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/configuration/SpringDocKotlinConfiguration.kt
index 82cd690a5..d11d0cb91 100644
--- a/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/configuration/SpringDocKotlinConfiguration.kt
+++ b/springdoc-openapi-starter-common/src/main/java/org/springdoc/core/configuration/SpringDocKotlinConfiguration.kt
@@ -128,10 +128,15 @@ class SpringDocKotlinConfiguration() {
 		return kotlinFunction.parameters[parameterIndex + 1]
 	}
 
-	@Bean
-	@Lazy(false)
-	@ConditionalOnMissingBean
-	fun kotlinDeprecatedPropertyCustomizer(objectMapperProvider: ObjectMapperProvider): KotlinDeprecatedPropertyCustomizer {
-		return KotlinDeprecatedPropertyCustomizer(objectMapperProvider)
+	@ConditionalOnClass(name = ["kotlin.reflect.full.KClasses"])
+	class KotlinReflectDependingConfiguration {
+
+		@Bean
+		@Lazy(false)
+		@ConditionalOnMissingBean
+		fun kotlinDeprecatedPropertyCustomizer(objectMapperProvider: ObjectMapperProvider): KotlinDeprecatedPropertyCustomizer {
+			return KotlinDeprecatedPropertyCustomizer(objectMapperProvider)
+		}
 	}
+
 }