java-notes

JVM (Java Virtual Machine)

• Sun Classic
• Exact VM
• HotSpot
• JRockit
• J9
• Harmony
• Azul VM
• Zulu
• BEA Liquid VM

http://rednaxelafx.iteye.com/blog/362738

Java Bytecode Instruction: http://en.wikipedia.org/wiki/Java_bytecode_instruction_listings

JVM note book: https://code.google.com/p/jvmnotebook/

GC: http://www.cs.kent.ac.uk/people/staff/rej/gc.html

find . -name '*.java' -print > java.list javac -d classes @java.list

find . -name '*.class' -print > classes.list jar cf my.jar @classes.list

jstat -J-Djstat.showUnsupported=true -snap

-XX:+UnlockDiagnosticVMOptions -XX:+LogCompilation >>> hotspot.log

http://jinwoohwang.com/index.html

虚拟JUG：http://www.youtube.com/user/virtualJUG?feature=watch

Java Performance

http://www.javaperformancetuning.com/

• Java不慢
• 反射不慢
• 异常不慢

Java Concurrent

1. http://sourceforge.net/projects/javaconcurrenta/
2. http://gee.cs.oswego.edu/dl/concurrency-interest/jsr166-slides.pdf

参考书籍

• 《深入Java虚拟机(原书第2版)》 http://book.douban.com/subject/1138768/
• 《深入理解Java虚拟机》 http://book.douban.com/subject/6522893/
• 《Effective Java 第二版 中文版》 http://book.douban.com/subject/3360807/