diff --git a/CHANGES.md b/CHANGES.md
index e848df89b..4a469eb97 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -13,6 +13,7 @@ Release Notes.
 
 #### Documentation
 
+* Add a section in `Bootstrap-plugins` doc, introducing HttpURLConnection Plugin compatibility.
 
 All issues and pull requests are [here](https://github.com/apache/skywalking/milestone/138?closed=1)
 
diff --git a/docs/en/setup/service-agent/java-agent/Bootstrap-plugins.md b/docs/en/setup/service-agent/java-agent/Bootstrap-plugins.md
index 415ebcdb2..c90214482 100644
--- a/docs/en/setup/service-agent/java-agent/Bootstrap-plugins.md
+++ b/docs/en/setup/service-agent/java-agent/Bootstrap-plugins.md
@@ -5,4 +5,17 @@ For using these plugins, you need to put the target plugin jar file into `/plugi
 Now, we have the following known bootstrap plugins.
 * Plugin of JDK HttpURLConnection. Agent is compatible with JDK 1.8+
 * Plugin of JDK Callable and Runnable. Agent is compatible with JDK 1.8+
-* Plugin of JDK ThreadPoolExecutor. Agent is compatible with JDK 1.8+
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+* Plugin of JDK ThreadPoolExecutor. Agent is compatible with JDK 1.8+
+
+### HttpURLConnection Plugin Notice
+The plugin of JDK HttpURLConnection depended on `sun.net.*`. When using Java 9+, You should add some JVM options as follows:
+
+| Java version | JVM option                                                                     |
+|--------------|--------------------------------------------------------------------------------|
+| 9-15         |Nothing to do. Because `--illegal-access` default model is permitted.             |
+| 16           |Add `--add-exports java.base/sun.net.www=ALL-UNNAMED` or `--illegal-access=permit` |
+| 17+          |Add `--add-exports java.base/sun.net.www=ALL-UNNAMED`                              |
+
+For more information 
+1. [JEP 403: Strongly Encapsulate JDK Internals](https://openjdk.org/jeps/403)
+2. [A peek into Java 17: Encapsulating the Java runtime internals](https://blogs.oracle.com/javamagazine/post/a-peek-into-java-17-continuing-the-drive-to-encapsulate-the-java-runtime-internals)
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