java

发表于 2025-03-08

java 相关记录

阿里开源jdk

openjdk下载

# openjdk官网 
http://hg.openjdk.java.net/

# 亚马逊发行版
https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/downloads-list.html
wget https://corretto.aws/downloads/latest/amazon-corretto-8-x64-linux-jdk.tar.gz
wget https://corretto.aws/downloads/latest/amazon-corretto-11-x64-linux-jdk.tar.gz

tar  -zxvf openjdk-8u41-b04-linux-x64-14_jan_2020.tar.gz # 下载后解压

openjdk编译

yum install unzip
unzip openjdk-8u40-src-b25-10_feb_2015.zip
cd openjdk/
sudo bash ./configure --with-target-bits=64 --with-boot-jdk=/home/jiazhifeng/workspace/jdk1.7.0_80/ --with-debug-level=slowdebug --enable-debug-symbols ZIP_DEBUGINFO_FILES=0
sudo make all DISABLE_HOTSPOT_OS_VERSION_CHECK=OK ZIP_DEBUGINFO_FILES=0

说明下第一条命令configure用到的参数作用：
–with-target-bits=64 ：指定生成64位jdk；
–with-boot-jdk=/usr/java/jdk1.7.0_80/：启动jdk的路径；
–with-debug-level=slowdebug：编译时debug的级别，有release, fastdebug, slowdebug 三种级别；
–enable-debug-symbols ZIP_DEBUGINFO_FILES=0：生成调试的符号信息，并且不压缩；