ubuntu12.04下编译openjdk7

ubuntu12.04上编译openjdk7
获取源码从openjdk代码仓库获取(比较慢)

安装mercurial
Mercurial是一个版本管理工具。这是由于内核版本太高了，两种方式解决:
方法一：#endif
sound错误

lichengwu@s4:~/openjdk7/build/linux-amd64/j2sdk-image/bin$ java -versionjava version "1.6.0_24"OpenJDK Runtime Environment (IcedTea6 1.11.1) (6b24-1.11.1-4ubuntu3)OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode)lichengwu@s4:~/openjdk7/build/linux-amd64/j2sdk-image/bin$ ./java -versionopenjdk version "1.7.0-internal-all_fastdebug"OpenJDK Runtime Environment (build 1.7.0-internal-all_fastdebug-lichengwu_2012_06_13_11_47-b00)OpenJDK 64-Bit Server VM (build 21.0-b17, mixed mode)

参考资料：

编译：http://hg.openjdk.java.net/jdk7/build/raw-file/tip/README-builds.html
http://thebye85.iteye.com/blog/1545311
关于为啥要自己编译jdk：http://rednaxelafx.iteye.com/blog/1549577