How to manually upgrade the Java Runtime Environment (JRE) version used by Sage CRM

Sage CRM uses Oracle Java within its architecture. Some of the features that Sage CRM uses Java to enable are, the Interactive Dashboards, the Import and Export of Records, the integration with Exchange and Mailchimp and it sits under the REST API.

There may be a need to separately upgrade the Java version used in Sage CRM if Oracle issues a security advisory. We hope that this article provides reassurance of how manual mitigation can be used if a Java vulnerability is identified.

Sage CRM uses Java 8.

To change the JRE used for Sage CRM you will need to download the latest 32Bit version (x86) of the JRE ver 8 from

e.g. the X86 Online Installer may be called similar to jre-8u331-windows-i586-iftw.exe

Download and then run the JRE installer file.

Note: You may need to create an Oracle Account to download the file.

Once the installation file is downloaded, you can run it and install the new version of the JRE.

Oracle Java 8 RTE defaults to a version specific folder


C:\Program Files (x86)\Java\jre1.8.0_331

Next we need to find the location for the JRE currently used by Sage CRM.

Go to the <Instance>\Tomcat\Bin Folder


C:\Program Files (x86)\Sage\CRM\CRM\tomcat\bin

Open the file crmservice.log with a text editor.

Installing the service 'CRMTomcat9' ...
Using CATALINA_HOME: "C:\Program Files (x86)\Sage\CRM\CRM\tomcat"
Using CATALINA_BASE: "C:\Program Files (x86)\Sage\CRM\CRM\tomcat"
Using JRE_HOME: "C:\Program Files (x86)\Sage\CRM\Services\JRE\jre8"
Using JVM: "C:\Program Files (x86)\Sage\CRM\Services\JRE\jre8\bin\client\jvm.dll"
The service 'CRMTomcat9' has been installed.

It will show the location of the JRE Home folder.


C:\Program Files (x86)\Sage\CRM\Services\JRE\jre8

Stop the CRM Apache Tomcat services

Copy the updated JRE version from the C:\Program Files (x86)\Java\jre1.8.0_331 to the JRE_HOME folder.

Restart the CRM Apache Tomcat services

Note: You may need to perform an IISRESET.