workaround for old macOS versions, after change of Let's Encrypt root certificate --- see also https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021 --- Java/Scala Isabelle_System.download() works, but curl doens't;
#!/usr/bin/env bash
#
# Author: Makarius
#
# DESCRIPTION: monitor another Java process
isabelle java "-Dapple.awt.application.name=Java Monitor" --add-opens jdk.jconsole/sun.tools.jconsole=ALL-UNNAMED isabelle.Java_Monitor "$@"