Thank you for that suggestion!!! I had indiscriminately added all the code you suggested for the code_JS component, but I realize now you just meant those as suggestions, depending on what the experiment needs. Now I have a code component in the first routine with
BaseClock = new util.Clock();
This fixed things! Thanks!
FYI for anyone following this, @wakecarter is referring to this crib sheet (see links below), which lists common problems/solutions when translating python code components to java: