Add open source protocol headers

hippo4j-core/src/main/java/cn/hippo4j/core/executor/support/ExecutorContext.java

@@ -1,13 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+ *
+ *     http://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 cn.hippo4j.core.executor.support;
 
 import org.slf4j.MDC;
 
 import static cn.hippo4j.common.constant.Constants.EXECUTE_TIMEOUT_TRACE;
 
+/**
+ * Executor context.
+ */
 public class ExecutorContext {
 
+    /**
+     * Put execute timeout trace.
+     *
+     * @param executeTimeoutTrace
+     */
     public static void putExecuteTimeoutTrace(String executeTimeoutTrace) {
         MDC.put(EXECUTE_TIMEOUT_TRACE, executeTimeoutTrace);
     }
-
 }