diff --git a/hippo4j-core/src/main/java/cn/hippo4j/core/executor/DynamicThreadPoolWrapper.java b/hippo4j-core/src/main/java/cn/hippo4j/core/executor/DynamicThreadPoolWrapper.java
index e5dab547..8f4d2941 100644
--- a/hippo4j-core/src/main/java/cn/hippo4j/core/executor/DynamicThreadPoolWrapper.java
+++ b/hippo4j-core/src/main/java/cn/hippo4j/core/executor/DynamicThreadPoolWrapper.java
@@ -25,7 +25,9 @@ import lombok.NoArgsConstructor;
 import org.springframework.beans.factory.DisposableBean;
 
 import java.util.concurrent.Callable;
+import java.util.concurrent.Executors;
 import java.util.concurrent.Future;
+import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.ThreadPoolExecutor;
 
 /**
@@ -37,10 +39,27 @@ import java.util.concurrent.ThreadPoolExecutor;
 @AllArgsConstructor
 public class DynamicThreadPoolWrapper implements DisposableBean {
 
+    /**
+     * Determine the unique identifier of the thread pool in the project.
+     *
+     * @param tenantId tenant id
+     * @param itemId project id in the team
+     * @param threadPoolId Thread pool identifier under the project
+     */
     private String tenantId, itemId, threadPoolId;
 
+    /**
+     * Whether the thread pool has completed initialization,
+     * and whether to subscribe to server-side configuration change events.
+     *
+     * @param subscribeFlag subscription server configuration id
+     * @param initFlag initial configuration complete flag
+     */
     private boolean subscribeFlag, initFlag;
 
+    /**
+     * Thread pool executor.
+     */
     private ThreadPoolExecutor executor;
 
     public DynamicThreadPoolWrapper(String threadPoolId) {
@@ -53,14 +72,62 @@ public class DynamicThreadPoolWrapper implements DisposableBean {
         this.subscribeFlag = true;
     }
 
+    /**
+     * Executes the given task sometime in the future.  The task
+     * may execute in a new thread or in an existing pooled thread.
+     * <p>
+     * If the task cannot be submitted for execution, either because this
+     * executor has been shutdown or because its capacity has been reached,
+     * the task is handled by the current {@code RejectedExecutionHandler}.
+     *
+     * @param command the task to execute
+     * @throws RejectedExecutionException at discretion of
+     *                                    {@code RejectedExecutionHandler}, if the task
+     *                                    cannot be accepted for execution
+     * @throws NullPointerException       if {@code command} is null
+     */
     public void execute(Runnable command) {
         executor.execute(command);
     }
 
+    /**
+     * Submits a Runnable task for execution and returns a Future
+     * representing that task. The Future's {@code get} method will
+     * return {@code null} upon <em>successful</em> completion.
+     *
+     * @param task the task to submit
+     * @return a Future representing pending completion of the task
+     * @throws RejectedExecutionException if the task cannot be
+     *                                    scheduled for execution
+     * @throws NullPointerException       if the task is null
+     */
     public Future<?> submit(Runnable task) {
         return executor.submit(task);
     }
 
+    /**
+     * Submits a value-returning task for execution and returns a
+     * Future representing the pending results of the task. The
+     * Future's {@code get} method will return the task's result upon
+     * successful completion.
+     *
+     * <p>
+     * If you would like to immediately block waiting
+     * for a task, you can use constructions of the form
+     * {@code result = exec.submit(aCallable).get();}
+     *
+     * <p>Note: The {@link Executors} class includes a set of methods
+     * that can convert some other common closure-like objects,
+     * for example, {@link java.security.PrivilegedAction} to
+     * {@link Callable} form so they can be submitted.
+     *
+     * @param task the task to submit
+     * @param <T>  the type of the task's result
+     * @return a Future representing pending completion of the task
+     * @throws RejectedExecutionException if the task cannot be
+     *                                    scheduled for execution
+     * @throws NullPointerException       if the task is null
+     */
     public <T> Future<T> submit(Callable<T> task) {
         return executor.submit(task);
     }
diff --git a/hippo4j-core/src/test/java/cn/hippo4j/core/executor/DynamicThreadPoolExecutorTest.java b/hippo4j-core/src/test/java/cn/hippo4j/core/executor/DynamicThreadPoolExecutorTest.java
index cfa344a0..63d362af 100644
--- a/hippo4j-core/src/test/java/cn/hippo4j/core/executor/DynamicThreadPoolExecutorTest.java
+++ b/hippo4j-core/src/test/java/cn/hippo4j/core/executor/DynamicThreadPoolExecutorTest.java
@@ -80,9 +80,9 @@ public class DynamicThreadPoolExecutorTest {
     @Test
     public void testDestroyWhenWaitForTask() {
         DynamicThreadPoolExecutor executor = new DynamicThreadPoolExecutor(
-            1, 1, 1000L, TimeUnit.MILLISECONDS,
-            1000L, true, 1000L,
-            new ArrayBlockingQueue<>(1), "test", Thread::new, new ThreadPoolExecutor.DiscardOldestPolicy());
+                1, 1, 1000L, TimeUnit.MILLISECONDS,
+                1000L, true, 1000L,
+                new ArrayBlockingQueue<>(1), "test", Thread::new, new ThreadPoolExecutor.DiscardOldestPolicy());
         AtomicInteger count = new AtomicInteger(0);
 
         executor.execute(() -> {
@@ -96,16 +96,17 @@ public class DynamicThreadPoolExecutorTest {
         executor.destroy();
 
         // waitting for terminated
-        while (!executor.isTerminated()){};
+        while (!executor.isTerminated()) {
+        } ;
         Assert.assertEquals(2, count.get());
     }
 
     @Test
     public void testDestroyWhenNotWaitForTask() {
         DynamicThreadPoolExecutor executor = new DynamicThreadPoolExecutor(
-            1, 1, 1000L, TimeUnit.MILLISECONDS,
-            1000L, false, 1000L,
-            new ArrayBlockingQueue<>(1), "test", Thread::new, new ThreadPoolExecutor.DiscardOldestPolicy());
+                1, 1, 1000L, TimeUnit.MILLISECONDS,
+                1000L, false, 1000L,
+                new ArrayBlockingQueue<>(1), "test", Thread::new, new ThreadPoolExecutor.DiscardOldestPolicy());
         AtomicInteger count = new AtomicInteger(0);
 
         executor.execute(() -> {
@@ -119,7 +120,8 @@ public class DynamicThreadPoolExecutorTest {
         executor.destroy();
 
         // waitting for terminated
-        while (!executor.isTerminated()){};
+        while (!executor.isTerminated()) {
+        } ;
         Assert.assertEquals(1, count.get());
     }
 
diff --git a/hippo4j-example/hippo4j-example-core/src/test/java/cn/hippo4j/example/core/TaskTimeRecordPluginBenchmarkTest.java b/hippo4j-example/hippo4j-example-core/src/test/java/cn/hippo4j/example/core/TaskTimeRecordPluginBenchmarkTest.java
index 2bf935a4..408af6e0 100644
--- a/hippo4j-example/hippo4j-example-core/src/test/java/cn/hippo4j/example/core/TaskTimeRecordPluginBenchmarkTest.java
+++ b/hippo4j-example/hippo4j-example-core/src/test/java/cn/hippo4j/example/core/TaskTimeRecordPluginBenchmarkTest.java
@@ -1,3 +1,20 @@
+/*
+ * 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.example.core;
 
 import cn.hippo4j.core.executor.ExtensibleThreadPoolExecutor;
@@ -34,15 +51,16 @@ public class TaskTimeRecordPluginBenchmarkTest {
     public void origin_200(Blackhole blackhole) {
         int threadCount = 200;
         ThreadPoolExecutor executor = new ThreadPoolExecutor(
-            threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
+                threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
+                new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
         executor.prestartAllCoreThreads();
 
         List<Runnable> tasks = getTask(threadCount, blackhole);
         tasks.forEach(executor::execute);
 
         executor.shutdown();
-        while (!executor.isTerminated()) {}
+        while (!executor.isTerminated()) {
+        }
     }
 
     @SneakyThrows
@@ -50,15 +68,16 @@ public class TaskTimeRecordPluginBenchmarkTest {
     public void origin_50(Blackhole blackhole) {
         int threadCount = 50;
         ThreadPoolExecutor executor = new ThreadPoolExecutor(
-            threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
+                threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
+                new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
         executor.prestartAllCoreThreads();
 
         List<Runnable> tasks = getTask(threadCount, blackhole);
         tasks.forEach(executor::execute);
 
         executor.shutdown();
-        while (!executor.isTerminated()) {}
+        while (!executor.isTerminated()) {
+        }
     }
 
     @SneakyThrows
@@ -66,16 +85,17 @@ public class TaskTimeRecordPluginBenchmarkTest {
     public void not_plugin_50(Blackhole blackhole) {
         int threadCount = 50;
         ExtensibleThreadPoolExecutor executor = new ExtensibleThreadPoolExecutor(
-            "test", new DefaultThreadPoolPluginManager(),
-            threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
+                "test", new DefaultThreadPoolPluginManager(),
+                threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
+                new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
         executor.prestartAllCoreThreads();
 
         List<Runnable> tasks = getTask(threadCount, blackhole);
         tasks.forEach(executor::execute);
 
         executor.shutdown();
-        while (!executor.isTerminated()) {}
+        while (!executor.isTerminated()) {
+        }
     }
 
     @SneakyThrows
@@ -83,16 +103,17 @@ public class TaskTimeRecordPluginBenchmarkTest {
     public void not_plugin_200(Blackhole blackhole) {
         int threadCount = 200;
         ExtensibleThreadPoolExecutor executor = new ExtensibleThreadPoolExecutor(
-            "test", new DefaultThreadPoolPluginManager(),
-            threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
+                "test", new DefaultThreadPoolPluginManager(),
+                threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
+                new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
         executor.prestartAllCoreThreads();
 
         List<Runnable> tasks = getTask(threadCount, blackhole);
         tasks.forEach(executor::execute);
 
         executor.shutdown();
-        while (!executor.isTerminated()) {}
+        while (!executor.isTerminated()) {
+        }
     }
 
     @SneakyThrows
@@ -100,9 +121,9 @@ public class TaskTimeRecordPluginBenchmarkTest {
     public void plugin_50(Blackhole blackhole) {
         int threadCount = 50;
         ExtensibleThreadPoolExecutor executor = new ExtensibleThreadPoolExecutor(
-            "test", new DefaultThreadPoolPluginManager(),
-            threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
+                "test", new DefaultThreadPoolPluginManager(),
+                threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
+                new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
         executor.prestartAllCoreThreads();
         executor.register(new TaskTimeRecordPlugin());
 
@@ -110,7 +131,8 @@ public class TaskTimeRecordPluginBenchmarkTest {
         tasks.forEach(executor::execute);
 
         executor.shutdown();
-        while (!executor.isTerminated()) {}
+        while (!executor.isTerminated()) {
+        }
     }
 
     @SneakyThrows
@@ -118,9 +140,9 @@ public class TaskTimeRecordPluginBenchmarkTest {
     public void plugin_200(Blackhole blackhole) {
         int threadCount = 200;
         ExtensibleThreadPoolExecutor executor = new ExtensibleThreadPoolExecutor(
-            "test", new DefaultThreadPoolPluginManager(),
-            threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
-            new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
+                "test", new DefaultThreadPoolPluginManager(),
+                threadCount, threadCount, 1000L, TimeUnit.MILLISECONDS,
+                new ArrayBlockingQueue<>(threadCount), Thread::new, new ThreadPoolExecutor.DiscardPolicy());
         executor.prestartAllCoreThreads();
         executor.register(new TaskTimeRecordPlugin());
 
@@ -128,7 +150,8 @@ public class TaskTimeRecordPluginBenchmarkTest {
         tasks.forEach(executor::execute);
 
         executor.shutdown();
-        while (!executor.isTerminated()) {}
+        while (!executor.isTerminated()) {
+        }
     }
 
     private List<Runnable> getTask(int count, Blackhole blackhole) {
@@ -142,9 +165,9 @@ public class TaskTimeRecordPluginBenchmarkTest {
 
     public static void main(String[] args) throws Exception {
         Options opts = new OptionsBuilder()
-            .include(TaskTimeRecordPluginBenchmarkTest.class.getSimpleName())
-            .resultFormat(ResultFormatType.JSON)
-            .build();
+                .include(TaskTimeRecordPluginBenchmarkTest.class.getSimpleName())
+                .resultFormat(ResultFormatType.JSON)
+                .build();
         new Runner(opts).run();
     }