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[Centos7] Open JDK18 (JAVA Development Kit) 업데이트
- JAVA 설치 여부 확인
$ java -version openjdk version "11.0.15" 2022-04-19 LTS OpenJDK Runtime Environment 18.9 (build 11.0.15+9-LTS) OpenJDK 64-Bit Server VM 18.9 (build 11.0.15+9-LTS, mixed mode, sharing)
- 설치 가능한 JDK 목록 조회
$ yum list java*jdk-devel Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile Available Packages java-1.6.0-openjdk-devel.x86_64 1:1.6.0.41-1.13.13.1.el7_3 base java-1.7.0-openjdk-devel.x86_64 1:1.7.0.261-2.6.22.2.el7_8 base java-1.8.0-openjdk-devel.i686 1:1.8.0.332.b09-1.el7_9 updates java-1.8.0-openjdk-devel.x86_64 1:1.8.0.332.b09-1.el7_9 updates java-11-openjdk-devel.i686 1:11.0.15.0.9-2.el7_9 updates java-11-openjdk-devel.x86_64 1:11.0.15.0.9-2.el7_9 updates java-latest-openjdk-devel.x86_64 1:18.0.1.0.10-2.rolling.el7 fedorapoject
- Yum을 이용한 Open JDK18 설치
$ yum install java-latest-openjdk-devel.x86_64 Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile CodeIT | 3.0 kB 00:00:00 base | 3.6 kB 00:00:00 extras | 2.9 kB 00:00:00 fedorapoject | 4.7 kB 00:00:00 updates | 2.9 kB 00:00:00 Resolving Dependencies ... Installed: java-latest-openjdk-devel.x86_64 1:18.0.1.0.10-2.rolling.el7 Dependency Installed: graphite2.x86_64 0:1.3.10-1.el7_3 harfbuzz.x86_64 0:1.7.5-2.el7 java-latest-openjdk.x86_64 1:18.0.1.0.10-2.rolling.el7 java-latest-openjdk-headless.x86_64 1:18.0.1.0.10-2.rolling.el7 libXcomposite.x86_64 0:0.4.4-4.1.el7 Complete!
- 업데이트된 JAVA 버전 사용
$ update-alternatives --config java There are 2 programs which provide 'java'. Selection Command ----------------------------------------------- *+ 1 java-11-openjdk.x86_64 (/usr/lib/jvm/java-11-openjdk-11.0.15.0.9-2.el7_9.x86_64/bin/java) 2 java-latest-openjdk.x86_64 (/usr/lib/jvm/java-18-openjdk-18.0.1.0.10-2.rolling.el7.x86_64/bin/java) Enter to keep the current selection[+], or type selection number: 2
update-alternatives --config javac There are 2 programs which provide 'javac'. Selection Command ----------------------------------------------- *+ 1 java-11-openjdk.x86_64 (/usr/lib/jvm/java-11-openjdk-11.0.15.0.9-2.el7_9.x86_64/bin/javac) 2 java-latest-openjdk.x86_64 (/usr/lib/jvm/java-18-openjdk-18.0.1.0.10-2.rolling.el7.x86_64/bin/javac) Enter to keep the current selection[+], or type selection number: 2
새로 설치한 2번 버전을 선택한다.
- JAVA 환경변수 수정
$ vi /etc/profile export JAVA_HOME=/usr/lib/jvm/java-18-openjdk-18.0.1.0.10-2.rolling.el7.x86_64 export PATH=$PATH:$JAVA_HOME/bin
기존에 환경변수를 등록한 경우에 수정한다.
- JAVA 버전 확인
$ java -version openjdk version "18.0.1" 2022-04-19 OpenJDK Runtime Environment 21.9 (build 18.0.1+10) OpenJDK 64-Bit Server VM 21.9 (build 18.0.1+10, mixed mode, sharing)
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