线程状态

https://xiaogd.net/java-%E7%BA%BF%E7%A8%8B%E7%8A%B6%E6%80%81%E4%B9%8B-timed_waiting/

https://stackoverflow.com/questions/11337384/java-thread-dump-difference-between-waiting-to-lock-and-parking-to-wait-for#

http://calvin1978.blogcn.com/articles/classloader-deadlock.html?utm_source=tuicool&utm_medium=referral

http://normanmaurer.me/blog/2014/07/25/JNI-Performance-The-Saga-continues/

http://planet.jboss.org/post/jni_performance_the_saga_continues

https://www.youtube.com/watch?v=3dKufRRT_3E

https://my.oschina.net/farces/blog/188887

https://my.oschina.net/goldenshaw/blog/706663

https://dzone.com/articles/how-analyze-java-thread-dumps

https://www.javacodegeeks.com/2012/03/jvm-how-to-analyze-thread-dump.html

https://www.imooc.com/article/43986

https://my.oschina.net/u/161458/blog/266313

https://my.oschina.net/u/140462/blog/487178

https://my.oschina.net/igooglezm/blog/757587

https://docs.oracle.com/javase/7/docs/api/java/lang/Thread.State.html

https://my.oschina.net/u/140462/blog/487178