Add KotlinUtils to the repo

Author: olegz

spring-cloud-function-context/src/main/java/org/springframework/cloud/function/utils/KotlinUtils.java

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2019-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.cloud.function.utils;
+
+import kotlin.jvm.functions.Function0;
+import kotlin.jvm.functions.Function1;
+
+import org.springframework.core.KotlinDetector;
+
+/**
+ * @author Oleg Zhurakousky
+ */
+public final class KotlinUtils {
+	private KotlinUtils() {
+
+	}
+
+	public static boolean isKotlinType(Object object) {
+		if (KotlinDetector.isKotlinPresent()) {
+			return KotlinDetector.isKotlinType(object.getClass()) || object instanceof Function0<?>
+					|| object instanceof Function1<?, ?>;
+		}
+		return false;
+	}
+}