For WSI version 7.1 and earlier versions:

The WSI package includes a JRE which is installed during installation. Below are instructions for how to replace the current JRE with the latest JRE from Oracle.

  1. Stop MDS.
  2. Install the latest Java version 8 from Oracle or OpenJDK on the host.
  3. For Java versions older than 8u161, download "Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files for JDK/JRE" for the JRE version you installed in the first step from Oracle. Apply it to the JRE installation by following the instructions from Oracle. This is required to be able to use encryption keys longer than 128 bits.
  4. Replace the WSI original JRE with the following steps (as the mds user). Replace the path "/opt/java/jre1.8.0_201" with the path to the new Java version:
    $ cd /opt/mds
    $ rm jre
    $ ln -s /opt/java/jre1.8.0_201 jre
  5. Start MDS.

For WSI version 7.2 and later versions:

The JRE is not included in the WSI installation. The Java Runtime is upgraded separately on the host. HelpSystems recommends using the latest Java JRE version 8 from Oracle or OpenJDK.

WSI looks for the JAVA_HOME environment variable. If JAVA_HOME is not set, the program attempts to find Java using the PATH.

The "JCE Unlimited Strength Jurisdiction Policy Files" are not needed for WSI version 7.2 and later.


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Last Modified On: September 04, 2019