Java 8为什么会移除APT以及mirror API?

作者：Night Silent
链接：https://www.zhihu.com/question/35221042/answer/61780857
来源：知乎
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详情参考这里： JEP 117: Remove the Annotation-Processing Tool (apt)
引用如下：
Goals:

By removing apt from the JDK, annotation processing can finish transitioning
 to the superior, standardized JSR 269 API.

The apt annotation processing framework is JDK-specific and dates back to JDK
 5. The functionality of the API was standardized with JSR 269, which shipped
 as part of Java SE 6. In JDK 7, the entirety of the apt API was deprecated.

Impacts:

After this change, users of annotation processing will have to use the JSR
 269 annotation processing facility, which has been supported in javac since
 JDK 6. Since apt is just part of the JDK and not part of Java SE, there is a 
looser compatibility contract around this component than around an API in 
java.* or javax.*. The removal of a command line tool from the JDK is not 
unprecedented, but the removal of apt should be clearly described in the 
release notes and similar documents.

取代 APT 的是更优的 JSR 269 API - "Pluggable Annotation Processing API".