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Update HttpURLConnection compatibility doc (#8133) (#285)

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pg.yang 2022-07-19 22:57:32 +08:00 committed by GitHub
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@ -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)

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docs/en/setup/service-agent/java-agent/Bootstrap-plugins.md
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@ -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+
* 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)