1;去apache的官方下载 openjdk
2：解压。假设目录 ~/openjdk
3：配置一下系统环境，
sudo aptitude build-dep openjdk-6
sudo aptitude install openjdk-6-jdk libmotif-dev
export LANG=C ALT_BOOTDIR=/usr/lib/jvm/java-6-openjdk ALLOW_DOWNLOADS=true
4：cd ~/openjdk
make
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如果不加ALLOW_DOWNLOAD=true, 会报Cannot find source for project jaxp这样的错误。
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不加 LANG=C 会报 WARNING: LANG has been set to en_US.UTF-8, this can cause build failures.
Try setting LANG to "C".
同时编译会出现error