I'm trying to modify the ACL of an object without creating another one. I don't want the current ACL to be deleted or overwritten. Whenever I use object.setACL() it overwrites the current ACL.
Is there a way to save the modified the ACL without overwriting it?
You can get the existing ACL object by calling object.getACL(). From there you can edit/add more roles or users without overwriting the existing ones.
Once you've modified the existing ACL, you can then object.setACL(modifiedAcl) to save the modifications.