Posted by Xerxes Rånby on Mar 09, 2020; 12:30pm
URL: https://forum.jogamp.org/FailedDownloadException-on-Mojave-tp4040416p4040422.html

The only redirect that happens is the conversion from http to https by jogamp.org webserver
the jogamp webserver redirects all http requests to https
this upset the javaws tool, that are then unable to locate the jnlp codebase using http (it gets redirected)

what will not work:
all jnlp that uses jars from jogamp.org using http:// in the jnlp will run into this exception using oracle's javawebstart implementation.

note that all current jnlp demo files hosted by jogamp currently use http:// in the jnlp

solution:
all jnlp that uses jars from jogamp.org must use https:// in the jnlp