1. There are 2 versions of JAVA installed in TDM Portal DEV sever - openjdk version 1.8.0_212 and Java 8.0.1310.0.
How to find the version of Java used by CA TDM Portal?
Below are the environment variables
PATH - C:\Program Files\AdoptOpenJDK\jre-8.0.212.04-hotspot\bin;C:\ProgramData\Oracle\Java\javapath
JAVA_HOME - C:\Program Files\AdoptOpenJDK\jre-8.0.212.04-hotspot\
2. What is the latest CA TDM supported versions of Oracle JAVA and Open JDK?
Release : 4.8
Component : CA Test Data Manager
If Portal uses full path to Java executable then PATH variable doesn't matter. If not then first available entry in this variable is used (so Open JDK in their case). You can look into Task Manager or Process Explorer to find the particular executable
But, Portal has an embedded openjdk java 8. That is the version we support.