Rocky linux JAVA インストール

# dnf install -y java-17-openjdk    java-17-openjdk-devel.x86_64
# update-alternatives --config java
# dirname $(readlink $(readlink $(which java)))

# vi /etc/profile.d/java.sh << __EOF__
export JAVA_HOME=/etc/alternatives/jre

export PATH=$PATH:$JAVA_HOME/bin 

export CLASSPATH=.:$JAVA_HOME/jre/lib:$JAVA_HOME/lib

__EOF__