http://www.oracle.com/technetwork/java/javase/downloads/java-archive-downloads-javase7-521261.html#jre-7u67-oth-JPR

export JAVA_HOME=/home/uria/Downloads/java/jre1.7.0_67
export PATH=$PATH:$JAVA_HOME/bin
 
$JAVA_HOME/bin/java -classpath  ~/.juniper_networks/network_connect/NC.jar NC -h HOST_IP -r REALM -u USERNAME -p PASSWORD -f ./cert.der -L 5 -U "https://juniper_url/XXXXX"