No reports showing up after upgrade to Apache Tomcat® 9.0.31 OM Web Viewer 12.1

Products

• Output Management Web Viewer

Issue/Introduction

When clicking on the “advanced search” tab, reports are not showing up and there’s nothing under the other tabs either, like “Configuration”. 

When we restored Apache Tomcat® 7 from backup everything works. 

Environment

• Output Management Web Viewer 12.1
• Apache Tomcat®

Resolution

1) JDK is required to install the Tomcat service with Apache Tomcat® 9  (not needed after that?)
2) Service.bat requires classloader in JVM options.
set "CLASSPATH=%CATALINA_HOME%\bin\bootstrap.jar;  
3) The service must run as a Local System Account

NOTE: Run startup.bat as admin.