The TechDoc 9 JRE has been updated to Java 8u102 to incorporate Java's latest security improvements. Be aware that this JRE only works with TechDoc 9. It can be used as part of a fresh install of TechDoc 9 or it can be run afterwards to upgrade the existing TechDoc 9 JRE to Java 8u102.
Note that the Tomcat service must be stopped in order to apply the update so it will interrupt service to users. If you are performing a JRE-only upgrade, don't forget to start the Tomcat service after the upgrade is complete since the upgrade process does not automatically restart the Tomcat service for you.