Prerequsities

1. The minimum requirement for updating to nJAMS Server 5 is any nJAMS Server version running with Elasticsearch 5 or 6.

   Caution

   If you are currently running nJAMS Server with Elasticsearch 2, you have to migrate to Elasticsearch 5 or 6 first and update to a version of nJAMS Server that supports Elasticsearch 5 or 6.

2. Updating from nJAMS Server 4.x to version 5.0 have to be performend by using nJAMS Server installer.

   nJAMS Server comes with many innovations under the hood. Among others, the new release 5.0 comes with its own OpenJDK 11 and uses new version 16 of WildFly Application Server. These new subsystems require an installation of nJAMS Server 5.0. For this reason there is no update file (WAR file) for nJAMS Server 5.0 available as usual before.

   nJAMS Server installer detects a prior release on the machine you installed nJAMS Server previously and performs an update of nJAMS Server.

   Note

   The current nJAMS Server instance has to be running to allow nJAMS installer to automatically gather information of current instance. When nJAMS Server is not running, you have to enter instance configuration manually during installation procedure.

3. Used 3rd party libraries have to be Java 11 compatible

   nJAMS Server 5 comes with OpenJDK 11. That means used 3rd party libraries in your current nJAMS instance must be Java 11 compatible. Before you begin to update your existing nJAMS Server instance, verify compatibility of the currently used jdbc driver. nJAMS installer allows to update your current instance, while replacing the jdbc driver with a newer version.