Older versions of java for mac os x how to#If you’re in that boat and are wanting to move your Mac to an older version of OS X, here’s how to download older OS X versions. It would most likely be due to performance issues, as an older Mac could have problems running the latest version of OS X, so downgrading to an older version could help with that. Of course, there are many reasons why you might want to downgrade to an older version of OS X. However, it’s important to note that not all OS X versions ever made are still available, and not all of the available OS X versions are free, unless you already have a copy of one. It is possible to downgrade OS X to an older version that’s even older than the previous version of your current operating system on your Mac. We’ve discussed how to downgrade to older versions of OS X on our sister site Gotta Be Mobile, but we’ve really only covered how to downgrade to the previous version, rather than older versions that might be a few years old. Here’s how and where to download older OS X versions for your Mac. This, output on my machine, tells me that I am using JDK version 1.8.0_101.Just because you’re running the latest version of OS X doesn’t mean that you can’t downgrade to older versions. Library/Java/JavaVirtualMachines/jdk1.8.0_101.jdk/Contents/Home In that case, I recommend that users check their $JAVA_HOME bash environmental variable from within Terminal to make a JDK determination, as follows: $ echo $JAVA_HOME The only potential issue here would be if you had multiple JDK versions installed. Armed with this information, we can simply open Terminal and list the contents of this directory on our machine to find the JDK version, as follows: ls /Library/Java/JavaVirtualMachines Here, it’s important to know that on recent versions of Java, the JDK is located at absolute path /Library/Java/JavaVirtualMachines/. Similar to #2 under the “Checking Java version on macOS” section above, this is a command line procedure, which in my example will use Mac Terminal. OpenJDK Runtime Environment Zulu11.2+3 (build 11.0.1+13-LTS) On my machine, the sanitized version of this procedure looks like: $ java -version The Java executable on your local machine will output the appropriate Java versioning information. Simply open a shell interpreter (command line interface) such as the Terminal application, and type java -version This is the method preferred by most users who are more familiar with personal computing and the command line interface. The version that is presented in the Java Control Panel is the currently running (=usually recommended) version of Java on your Mac machine.
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