replace open jdk with oracle jdk on centos 7

steps

1. os version

   $ cat /etc/redhat-release CentOS Linux release 7.4.1708 (Core)

2. list installed java packages

   $ rpm -qa | grep java python-javapackages-3.4.1-11.el7.noarch tzdata-java-2017c-1.el7.noarch java-1.7.0-openjdk-1.7.0.151-2.6.11.1.el7_4.x86_64 javapackages-tools-3.4.1-11.el7.noarch java-1.7.0-openjdk-headless-1.7.0.151-2.6.11.1.el7_4.x86_64

3. remove installed java packages

   $ rpm -e –nodeps tzdata-java-2017c-1.el7.noarch $ rpm -e –nodeps java-1.7.0-openjdk-1.7.0.151-2.6.11.1.el7_4.x86_64 $ rpm -e –nodeps java-1.7.0-openjdk-headless-1.7.0.151-2.6.11.1.el7_4.x86_64

4. cp jdk rpm file to remote server

   $ scp jdk-8u151-linux-x64.rpm root@192.168.1.123:/root

5. install oracle jdk

   $ rpm -ivh jdk-8u151-linux-x64.rpm $ java -version java version “1.8.0_151” Java(TM) SE Runtime Environment (build 1.8.0_151-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.151-b12, mixed mode)