I think you have to call TAC or partner Support to get this documentation.
They must have it (Can see it is removed from cisco.com)
I suspect the reason it has been removed is because support has long ago expired. You can certainly ask TAC, but I think your Cisco sales team is more likely to get you an answer. I don't recall the Java version, but if I had to guess 1.5 any version or 1.6 early versions would probably be the ones supported. I would just test and find out for myself.
@yuexp0929I think that you could try to check the java version using the CCX editor as it's the java application which connects to CCX. Each version of CCX Editor has it's own java folder.
What you could do is to:
Here are the results that I've got. In my opinion it should match the version on the server.
Another option to check it is to use a script with one set variable node with the value: System.getProperty("java.version")
Then just call the script in the Reactive Debug mode and see what value you will get in the variable.