If you have an install of Cache, then any of the COS commands should work with your Cache Terminal or whatever terminal emulator you are using for your instance/namespace.
In regard to the "class does not exist" or the "method does not exist" errors, those would happen if you tried to call/reference a class (or method within the class) that does not exist. You might want to confirm that you do not have a typo, as class names and method names are case sensitive (i.e. Filename versus FileName)
Hope that helps on your Cache journey!
If there are specific questions or issues you are having, feel free to post more details to the Dev Community and there are lots of Cache Devs willing to help.
Best Regards.
Thanks Enrico. I look forward to being able to use the new features of Cache and IRIS someday. The company I work for is still running Cache 2017.1.3, so those new JSON features are not available. But I sincerely appreciate the information. Because once we upgrade to IRIS, then I will be able to leverage/use the information you shared.
Best Regards!
One additional note (that I thought of after seeing the DC AI Bot response): The DC AI Bot explains that the lock can be "manually" released by logging into terminal window and forcing the lock. And while that is true, the goal of my post is to allow our support team to be able to use our LIS web-based application to remove the locks and NOT have to waste time logging in to another piece of software to perform the task that should be able to be done via our LIS application. And as you can imagine, there is a whole separate support process including creation/updating/assignment/etc... of a support ticket if the support team is unable to use the LIS application for certain pre-defined/verified workflows. So it is not cost-effective to have to deal with support tickets every time an orphaned lock needs to be removed. So please keep this item in mind when offering feedback/suggestions for how to allow the LIS web-based application to remove the lock for another Cache process. Best Regards.