diff --git a/spring-core/src/main/java/org/springframework/core/CoroutinesUtils.java b/spring-core/src/main/java/org/springframework/core/CoroutinesUtils.java
index 8ba870d07a5..34e2c6a9758 100644
--- a/spring-core/src/main/java/org/springframework/core/CoroutinesUtils.java
+++ b/spring-core/src/main/java/org/springframework/core/CoroutinesUtils.java
@@ -19,7 +19,6 @@ package org.springframework.core;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Map;
-import java.util.Objects;
 
 import kotlin.Unit;
 import kotlin.coroutines.CoroutineContext;
@@ -93,8 +92,7 @@ public abstract class CoroutinesUtils {
 	 * @return the method invocation result as reactive stream
 	 * @throws IllegalArgumentException if {@code method} is not a suspending function
 	 */
-	public static Publisher<?> invokeSuspendingFunction(Method method, Object target,
-			Object... args) {
+	public static Publisher<?> invokeSuspendingFunction(Method method, Object target, Object... args) {
 		return invokeSuspendingFunction(Dispatchers.getUnconfined(), method, target, args);
 	}
 
@@ -115,7 +113,8 @@ public abstract class CoroutinesUtils {
 			CoroutineContext context, Method method, @Nullable Object target, Object... args) {
 
 		Assert.isTrue(KotlinDetector.isSuspendingFunction(method), "Method must be a suspending function");
-		KFunction<?> function = Objects.requireNonNull(ReflectJvmMapping.getKotlinFunction(method));
+		KFunction<?> function = ReflectJvmMapping.getKotlinFunction(method);
+		Assert.notNull(function, () -> "Failed to get Kotlin function for method: " + method);
 		if (method.isAccessible() && !KCallablesJvm.isAccessible(function)) {
 			KCallablesJvm.setAccessible(function, true);
 		}