Is there a plan to support higher versions of JDK, such as JDK 17?

[TaXueWWL]

Your question

Is there a plan to support higher versions of JDK, such as JDK 17?

Your scenes

we have already upgrade to jdk17

Your advice

when compile with jdk17, occur error:
...\sofa-jraft\jraft-core\src\main\java\com\alipay\sofa\jraft\util\internal\UnsafeIntegerFieldUpdater.java:20:16
java: 程序包sun.misc不存在

Environment

• SOFAJRaft version:
• JVM version (e.g. java -version): jdk17
• OS version (e.g. uname -a):
• Maven version:
• IDE version:

[fengjiachun]

It's a good suggestion, I will try to support JDK17 in the next version, but I don't know how much work it will involve yet. The next version may not be released quickly, maybe in 2 months. Of course, if you are interested in sending a PR for this, you are very welcome to do so.

[TaXueWWL]

I found a temporary way to solve the compile problem.
Add: --add-modules=jdk.unsupported when compile
and Add:
--add-modules=jdk.unsupported
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
when run the app.

[zxuanhong]

@TaXueWWL @fengjiachun 我试着用jdk17,发现会导致rpc提示(注意是：CliService操作集群时，但是启动正常)：Connection is null when do check!。实际不是网络问题，我降低到1.8就正常了。我感觉还是有很大问题

[fengjiachun]

@TaXueWWL @fengjiachun 我试着用jdk17,发现会导致rpc提示(注意是：CliService操作集群时，但是启动正常)：Connection is null when do check!。实际不是网络问题，我降低到1.8就正常了。我感觉还是有很大问题

For more detail: #1083

[syhily]

After testing the sofa-jraft locally, I met some issues in using JDK 17, such as the sun.misc issue. Given that sofa-jraft didn't fully support the JDK 17, I don't know why we close this issue without any clarification.

[fengjiachun]

After testing the sofa-jraft locally, I met some issues in using JDK 17, such as the sun.misc issue. Given that sofa-jraft didn't fully support the JDK 17, I don't know why we close this issue without any clarification.

Sorry, I made a mistake. I thought the author of #1083 had already found a solution. I will reopen this issue.

[syhily]

Thanks for reopening this issue. The main issue in using sofa-jraft with higher JDK is that the difference of OpenJDK and Oracle JDK and the Unsafe has been move to jdk.internal.misc module. This may require the code refactoring in dropping the Unsafe usage. I may try to find a better solution on this.