We need to go to Oracle to get JAVA for Web Viewer, due to company concerns about using Open JDK. Please reply with the specific Oracle product name.
Release : 12.1
Component : CA OUTPUT MANAGEMENT WEB VIEWER FOR ALL PLATFORMS
For Oracle Java, we recommend Java 11 because it has long term support.
See this page: Java SE Development Kit 11- - Downloads (oracle.com)
Download it for Windows x64. (If not Windows, select the appropriate platform.)
This download requires a software license.