If you have been working with Sage CRM any time then you will know that Apache Tomcat is used as part of the architecture in the delivery of new features. And you will also know that Apache Tomcat provides a "pure Java" HTTP web server environment for Java code to run. Java is an essential part of the server platform for Sage CRM.
As part of the installation process Sage CRM adds its own instance of the JRE.
You can find this new folder under the CRM services directory
C:\Program Files (x86)\Sage\CRM\Services\JREx
This is the version of the JRE that Sage CRM will use and so will not be effected by the Java updates that might be applied to the servers default Java Runtime Environment.