查找

yum list java* |grep 1.8

java-1.8.0-openjdk.x86_64                 1:1.8.0.252.b09-2.el7_8       @updates
java-1.8.0-openjdk-headless.x86_64        1:1.8.0.252.b09-2.el7_8       @updates
java-1.8.0-openjdk.i686                   1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-accessibility.i686     1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-accessibility.x86_64   1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-demo.i686              1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-demo.x86_64            1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-devel.i686             1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-devel.x86_64           1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-headless.i686          1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-javadoc.noarch         1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-javadoc-zip.noarch     1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-src.i686               1:1.8.0.252.b09-2.el7_8       updates 
java-1.8.0-openjdk-src.x86_64             1:1.8.0.252.b09-2.el7_8       updates 

安装

yum install -y java-1.8.0-openjdk.x86_64  

真相

[root@applications blastPlatform]# java -version
openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)