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Switch Hermes SEG to OS Based Java and Upgrade JRE

Note: Java Version 10 is not currently supported on Hermes SEG. Hermes SEG has only been tested with Java 8.

  1. Login to console or SSH session.
  2. Install JDK
sudo add-apt-repository -y ppa:webupd8team/java
sudo apt-get update
echo debconf shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections
echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-set-selections
sudo apt-get -y install oracle-java8-installer
java -version
  1. Stop Lucee
sudo service lucee_ctl stop
  1. Remove JAVA_HOME and JRE_HOME from the lucee_ctl init script
sudo sed -i -e 's/^\(JRE\|JAVA\)/#\1/g' /etc/init.d/lucee_ctl
  1. Add the following to /opt/lucee/tomcat/bin/
sudo sed -i -e 's#CATALINA_OPTS#JAVA_HOME=/usr/lib/jvm/java-8-oracle\nexport CATALINA_OPTS#' /opt/lucee/tomcat/bin/
  1. Start Lucee
sudo service lucee_ctl start
  1. Verify it works
java -version 2>&1 | head -n 1 | awk -F '"' '{print $2}'

should output the latest Java version you installed above