If this is likely to be an issue going forward would it be a good idea to mavenize/gradleize the mmj2 build process so that the standalone version of nashorn-core (https://mvnrepository.com/artifact/org.openjdk.nashorn/nashorn-core) gets auto-downloaded and incorporated into the Jar file? It would increase the size of the jar somewhat but would at least ensure that the program isn't dependent on an antique version of Java? Although jdk8 is still technically under LTS it's no longer recommended for production use and anything modern should really be targeting jdk11+, if not jdk17.
I'm a Java guy and have some time off work coming up later this month, if Mel and Mario are okay with it I'd at least be willing to spend a day looking at the repo to see how much work it would be likely to be. DC On Thursday, 2 March 2023 at 22:38:49 UTC David A. Wheeler wrote: > > > > On Mar 2, 2023, at 4:36 PM, Mario Carneiro <[email protected]> wrote: > > > > It sounds like the nashorn JS engine was removed from a later version of > JDK, and the empty list following the prompt suggests there is no > replacement. Without it you won't be able to run any macros, although you > might be able to install it manually? The easiest thing to do is probably > just to downgrade to JDK 9. > > Ah, of course! I should have noticed the openjdk version more carefully. > > Oracle has long warned that they'd stop supporting JavaScript from Java > using the Nashorn JS engine, but mmj2 depends on it. > > --- David A. Wheeler > > > > > > On Thu, Mar 2, 2023 at 3:53 PM David A. Wheeler <[email protected]> > wrote: > > > > > > > On Mar 2, 2023, at 3:23 AM, William Mitchell Jr <[email protected]> > wrote: > > > > > > running mmj2 in the mmj2jar directory produced this error: > > > > > > mmj.pa.MMJException: E-UT-1502 You attempted to use a macro, but the > default Macro language 'js' does not exist. Use 'MacroLanguage,xxx' with > one of the following installed languages: > > > > > > This is the git version (uncompiled) running on > > > arm64 > > > Debian Linux > > > openjdk-18 > > > > Weird. I have no idea what's going on. Anyone else? > > > > --- David A. Wheeler > > > > -- > > You received this message because you are subscribed to the Google > Groups "Metamath" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/metamath/CCC54F28-92E6-4C7D-B8EF-1A993DB50449%40dwheeler.com > . > > > > -- > > You received this message because you are subscribed to the Google > Groups "Metamath" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to [email protected]. > > To view this discussion on the web visit > https://groups.google.com/d/msgid/metamath/CAFXXJSsoTbBby4QCy6zh-JEF%2B3qM80bSASPLJ4zk9RkA4%2B1C%2Bw%40mail.gmail.com > . > > -- You received this message because you are subscribed to the Google Groups "Metamath" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/metamath/4d1ba8e0-5a86-416f-b554-6fb16484c17cn%40googlegroups.com.
