Installing specific major Java JDK versions on OS X via Homebrew

Update 2019-05-07: The java8 cask is affected by recent licensing changes by Oracle. There’s a discussion over on github about this. I’m leaving the post up partially for historic context, but the java8 cask is no longer available, at least at the time of writing.

In an earlier post, I described how to install the latest version of the Oracle Java JDK using homebrew. What hadn’t been completely obvious to me when I wrote the original blog post is that the ‘java’ cask will install the latest major version of the JDK. As a result, when I upgraded my JDK install today, I ended up with an upgrade from Java 8 to Java 9. On my personal machine that’s not a problem, but what if I wanted to stick with a specific major version¬† of Java?

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