Support non-standard classes in Kotlin reflection discovery methods

Issue: SPR-15999

spring-beans/src/main/java/org/springframework/beans/BeanUtils.java

@@ -735,14 +735,19 @@ public abstract class BeanUtils {
 		 */
 		@Nullable
 		public static <T> Constructor<T> findPrimaryConstructor(Class<T> clazz) {
-			KFunction<T> primaryConstructor = KClasses.getPrimaryConstructor(JvmClassMappingKt.getKotlinClass(clazz));
+			try {
-			if (primaryConstructor == null) {
+				KFunction<T> primaryConstructor = KClasses.getPrimaryConstructor(JvmClassMappingKt.getKotlinClass(clazz));
+				if (primaryConstructor == null) {
+					return null;
+				}
+				Constructor<T> constructor = ReflectJvmMapping.getJavaConstructor(primaryConstructor);
+				Assert.notNull(constructor,
+						() -> "Failed to find Java constructor corresponding to Kotlin primary constructor: " + clazz.getName());
+				return constructor;
+			}
+			catch (UnsupportedOperationException ex) {
 				return null;
 			}
-			Constructor<T> constructor = ReflectJvmMapping.getJavaConstructor(primaryConstructor);
-			Assert.notNull(constructor,
-					() -> "Failed to find Java constructor corresponding to Kotlin primary constructor: " + clazz.getName());
-			return constructor;
 		}
 
 		/**

spring-beans/src/main/java/org/springframework/beans/factory/annotation/AutowiredAnnotationBeanPostProcessor.java

@@ -781,13 +781,18 @@ public class AutowiredAnnotationBeanPostProcessor extends InstantiationAwareBean
 		 */
 		@Nullable
 		public static <T> Constructor<T> findPrimaryConstructor(Class<T> clazz) {
-			KFunction<T> primaryConstructor = KClasses.getPrimaryConstructor(JvmClassMappingKt.getKotlinClass(clazz));
+			try {
-			if (primaryConstructor == null) {
+				KFunction<T> primaryConstructor = KClasses.getPrimaryConstructor(JvmClassMappingKt.getKotlinClass(clazz));
+				if (primaryConstructor == null) {
+					return null;
+				}
+				Constructor<T> constructor = ReflectJvmMapping.getJavaConstructor(primaryConstructor);
+				Assert.notNull(constructor, "Can't get the Java constructor corresponding to the Kotlin primary constructor of " + clazz.getName());
+				return constructor;
+			}
+			catch (UnsupportedOperationException ex) {
 				return null;
 			}
-			Constructor<T> constructor = ReflectJvmMapping.getJavaConstructor(primaryConstructor);
-			Assert.notNull(constructor, "Can't get the Java constructor corresponding to the Kotlin primary constructor of " + clazz.getName());
-			return constructor;
 		}
 
 	}

spring-core/src/main/java/org/springframework/core/KotlinReflectionParameterNameDiscoverer.java

@@ -62,8 +62,13 @@ public class KotlinReflectionParameterNameDiscoverer implements ParameterNameDis
 		if (!useKotlinSupport(method.getDeclaringClass())) {
 			return null;
 		}
-		KFunction<?> function = ReflectJvmMapping.getKotlinFunction(method);
+		try {
-		return (function != null ? getParameterNames(function.getParameters()) : null);
+			KFunction<?> function = ReflectJvmMapping.getKotlinFunction(method);
+			return (function != null ? getParameterNames(function.getParameters()) : null);
+		}
+		catch (UnsupportedOperationException ex) {
+			return null;
+		}
 	}
 
 	@Override
@@ -72,8 +77,13 @@ public class KotlinReflectionParameterNameDiscoverer implements ParameterNameDis
 		if (!useKotlinSupport(ctor.getDeclaringClass())) {
 			return null;
 		}
-		KFunction<?> function = ReflectJvmMapping.getKotlinFunction(ctor);
+		try {
-		return (function != null ? getParameterNames(function.getParameters()) : null);
+			KFunction<?> function = ReflectJvmMapping.getKotlinFunction(ctor);
+			return (function != null ? getParameterNames(function.getParameters()) : null);
+		}
+		catch (UnsupportedOperationException ex) {
+			return null;
+		}
 	}
 
 	@Nullable