yum -y install java-1.8.0-openjdk yum -y install java-1.8.0-openjdk-devel
export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.282.b08-1.el7_9.x86_64
export CLASSPATH=.:${JAVA_HOME}/lib/dt.jar:${JAVA_HOME}/lib/tools.jar
export JRE_HOME=${JAVA_HOME}/jre
export PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin:$PATH
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