Hi, since my upgrade to Catalina I am getting the same issue. Furthermore, when I run snappy-conf the following window pops up.
However, I can’t install this version of Java because the OS says that there is a newer version. I am really hoping there is an alternative to the solution here: https://www.harrisgeospatial.com/Support/Self-Help-Tools/Help-Articles/Help-Articles-Detail/ArtMID/10220/ArticleID/23780/Mac-OS-Catalina-1015-ENVIIDL-and-Legacy-Java-6-Dependencies