> Huh. The system requirements linked from the download page say "Intel-based > Mac running Mac OS X 10.7.3 (Lion) or later.”
Very interesting. I was able to install JDK 8u161 in my OS X 10.7.5 VM. Apparently Oracle has had contradictory advice about this for a long time, and they never cleared it up: https://derflounder.wordpress.com/2015/01/10/oracles-java-8-and-mac-os-x-10-7-x/ I stand corrected. > The Mac FAQ also says "If installing an older version of Java is absolutely > required, you must first uninstall the current version"; from this I assumed > that simultaneous installation of multiple versions is not possible. That’s probably talking about the JRE at /Library/Internet Plug-Ins/JavaAppletPlugin.plugin; an older one will never overwrite a newer one already present there. However we are concerned with the JDK, which lives at /Library/JavaVirtualMachines, and it is most definitely possible to have multiple JDKs installed there. > Apparently Java 9 exists. It is mentioned on oracle.com but not on java.com. > I don't know if I should be attempting to install 8 or 9. Java 9 is very new, and it has changes that break building for a large number of projects that are not yet specifically targeting it. I would stick with Java 8 for the near future. -Aaron
