使用eclipse 编译elasticsearch 7.6.4小结

今天花了不少时间，编译好了elasticsearch 7.6.4，简单总结如下：

1. 需要安装jdk 13

2. 测试代码使用了com.sun.net.httpserver.HttpExchange ，因此需要关闭限制 “Access restriction on class due to restriction on required library rt.jar”，执行如下动作：

   On Windows: Windows -> Preferences -> Java -> Compiler -> Errors/Warnings -> Deprecated and restricted API -> Forbidden reference (access rules): -> change to warning

   On Mac OS X/Linux: Eclipse -> Preferences -> Java -> Compiler -> Errors/Warnings -> Deprecated and restricted API -> Forbidden reference (access rules): -> change to warning

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3. 项目中大量循环依赖，需要执行以下动作

   Mark circular dependencies as “Warning” in Eclipse tool to avoid “A CYCLE WAS DETECTED IN THE BUILD PATH” error.

   In Eclipse go to:

   Windows -> Preferences -> Java-> Compiler -> Building -> Circular Dependencies

4. 默认过程中测试需要很长时间，如果不等待可以在build