[ CentOS 7 ] openJDK 1.8 Install

 

# yum list java*jdk-devel        (설치가능한 리스트 확인)

 

 

 

# yum install java-1.8.0-openjdk-devel.x86_64        (1.8.0 설치)

 

 

# java -version

openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-b04)
OpenJDK 64-Bit Server VM (build 25.212-b04, mixed mode)

 

 

# javac -version             
javac 1.8.0_212

 

 

 

환경변수가 없는데 버전확인이 왜 되나 했더니 심볼릭링크가 걸려있다.

 

# ls -l /usr/bin/javac

 /usr/bin/javac -> /etc/alternatives/javac

 

# ls -l /etc/alternatives/javac

 /etc/alternatives/javac -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.212.b04-0.el7_6.x86_64/bin/javac