export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_271  
export JRE_HOME=${JAVA_HOME}/jre  
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib  
export  PATH=${JAVA_HOME}/bin:$PATH
/usr/lib/jvm/jdk1.8.0_271/bin/java -version
/usr/lib/jvm/jdk1.8.0_271/bin/java ${CLASSPATH} -jar /root/Downloads/I2client/dist/I2client.jar