OOP KLASSOOP, instanceklass
http://rednaxelafx.iteye.com/blog/1847971
https://www.sczyh30.com/posts/Java/jvm-klass-oop/
OpenJDK9 Hotspot :oops,klass 与 handle
https://www.infoq.com/articles/Introduction-to-HotSpot
HotSpotVM 对象机制实现浅析#1
https://blog.csdn.net/kisimple/article/details/44632443
HotSpotVM 对象机制实现浅析#1
https://hellokangning.github.io/post/jvm-series-oop-klass/
http://hllvm.group.iteye.com/group/topic/39445
https://zeroturnaround.com/rebellabs/dangerous-code-how-to-be-unsafe-with-java-classes-objects-in-memory/
https://www.zhihu.com/question/21574535
http://www.hollischuang.com/archives/1910
http://rednaxelafx.iteye.com/blog/730461#comments
http://rednaxelafx.iteye.com/blog/1847971
http://mail.openjdk.java.net/pipermail/hotspot-dev/2009-February/001243.html
http://hllvm.group.iteye.com/group/topic/43577
https://www.zhihu.com/question/21574535
http://www.importnew.com/23669.html
https://book.douban.com/people/RednaxelaFX/annotation/25847620/?start=20
http://www.cnblogs.com/iceAeterNa/p/4877741.html
http://arturmkrtchyan.com/java-object-header
https://www.cnblogs.com/iceAeterNa/p/4877549.html
http://stackoverflow.com/questions/16721021/what-is-klass-klassklass
http://www.hollischuang.com/archives/1910
https://www.infoq.com/articles/Introduction-to-HotSpot
https://zeroturnaround.com/rebellabs/dangerous-code-how-to-be-unsafe-with-java-classes-objects-in-memory/6/
http://www.udpwork.com/item/6820.html
https://book.douban.com/people/RednaxelaFX/annotation/25847620/?start=20
http://hllvm.group.iteye.com/group/topic/17840#post-126408