Dear: The chat records of WeChat group“Apache linkis Community Development Group”are as follows微信群"Apache Linkis 社区开发群"的聊天记录如下
————— 2022-8-5 ————— casion 20:53 Some students in the community asked about JDK adaptation compilation, whether our Git Aciton also adds the mainstream JDK8 and JDK11 automatic build verification 看社区有同学问关于jdk适配编译问题， 我们的 git aciton 中是不是也加上 主流的jdk8 和jdk11 自动构建验证 casion 20:53 casion 20:55 Seeing that other items should be running in parallel should not affect the check duration much https://github.com/apache/servicecomb-pack/actions/runs/2773904490/workflow 看其它项目 应该是并行在跑 对check时长也应该不会有多大影响 casion 20:55 casion 20:55 peacewong@WDS 21:22 I think it's necessary. I don't know if there are compatibility issues感觉有必要，不知道有兼容问题没 peacewong@WDS 21:24 @jackxu2011_seems to have tried 麟云 许灵兄好像有试过 许灵 21:47 11 there is a problem 11有问题 There is a problem jackxu2011_许灵 21:48 Sun's internal API is also used in the project, which is no longer available in JDK11项目中还用到sun的内部API, jdk11已经没有了 peacewong@WDS 21:48 I think it can replace these这些应该可以替换下 jackxu2011许灵 21:51 一个是 sun.misc.{Signal, SignalHandler} jackxu2011许灵 21:52 一个是import sun.misc.Unsafe; peacewong@WDS 21:52 jackxu2011could you mention an issue？ 许灵兄看是不是可以来个issue下 peacewong@WDS 21:53 It looks like it should be replaceable 看起来应该是可以替换的 jackxu2011许灵 21:54 One is that sun.misc.{Signal, SignalHandler} there is no good alternative. I look at the code and feel that we can directly replace it with Spring event event一个是 sun.misc.{Signal, SignalHandler} 目前没什么好的替代方案。我看代码，感觉可以直接用spring的event事件替换 jackxu2011许灵 21:54 application shutdown jackxu2011许灵 21:55 One is import sun.misc.Unsafe; I don't know much about this, how do I solve it一个是import sun.misc.Unsafe; 这个我不太了解，不知道怎么解 jackxu2011许灵 21:55 It seems that Spark and the like still use this class, but with special treatment好像spark之类的都还有这个类的使用，只是做了特殊处理 peacewong@WDS 21:56 Yeah, I should be able to replace it with this 是的，应该可以替换成这个 peacewong@WDS 21:57 It depends on which methods are used要看具体用了哪几个方法 jackxu2011许灵 21:57 It seems to me that the main purpose of the code is to calculate the actual memory used by the object我看代码好像主要为了计算对象的实际使用内存大小 peacewong@WDS 21:58 That should be replaced with oshi那应该可以替换为oshi jackxu2011许灵 22:04 Maven plugin needs to be upgraded. The current version of Scala plugin does not support JDK11还有就是maven插件要升级，目前的scala插件版本不支持jdk11 jackxu2011许灵 22:05 And Scala should go up to 2.12还有scala最好升到2.12 jackxu2011许灵 22:09 What else is incompatible? I haven't tried it. At present these are to be changed, except for the Scala version upgrade is optional其它的还有什么不兼容的，没试过。目前看这些是要改掉的，除了scala版本的升级可选 peacewong@WDS 22:11 jackxu2011 This Java 11 compatibility you see the lead to do? 许灵兄这个java11兼容你看主导搞下？ jackxu2011许灵 22:19 ok jackxu2011许灵 22:24 There may also be some other issues, such as Hadoop, JDK version requirements, such as Hadoop2.7 do not support JDK11这个可能还有其它一些问题，像hadoop之类的，对jdk版本的要求，像是hadoop2.7都不支持jdk11 peacewong@WDS 22:25 There is a problem with that and it may be recommended that if you are running in JDK11, you should specify the compatible version numbers of the underlying components那确实存在问题，可能到时候推荐如果运行在jdk11，得说清楚哪些底层组件的兼容版本号 jackxu2011许灵 22:27 can be modify the plug-in, the Sun API可以先改插件，sun api peacewong@WDS 22:27 yes 是的
