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Java

Nigel Stanger edited this page on 23 Aug 2021
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Java VMs should be installed in either /Library/Java/JavaVirtualMachines or ~/Library/Java/JavaVirtualMachines. Not sure where JREs go, but really, who cares?

The java_home tool is extremely useful, but is not located in the path 🙁 (/usr/libexec/java_home).

  • java_home shows the default JVM.
  • java_home -V lists all installed JVMs.
  • java_home -v 11 lists all installed Java 11 JVMs.
  • java_home --exec <command> runs <command> with the default JVM (use -v for a specific version — if there is more than one, it uses the first returned).