Tim, you are correct. This is an issue with multiple web servers. The
only solution is to upgrade to a newer version of the application/web
server that is having the issue or to downgrade to Java 7. Jetty 7 and 8
also have this problem but Jetty 9 should work, for example.
On Sat, Jul 25, 2015
java.util.Map.Entry changed its definition from Java 7 to Java 8 (source:
http://stackoverflow.com/a/26105217), so it's possible that the installed
version of Jasper isn't Java 8 compatible. According to
https://blogs.oracle.com/java/entry/glassfish_server_open_source_edition,
GlassFish 4.1 should
