If you want to manually install Java rather than having the launcher do it for you, follow these steps.

• Download Java 8 x64
  • Windows/macOS
    • Download from Oracle.
    • For Windows: Windows x64 (jre-8uVERSION-windows-x64.exe)
    • For macOS: Mac OS X x64 (jre-8uVERSION-macosx-x64.dmg)
  • Linux:
    • OpenJDK (recommended): $ sudo apt-get install openjdk-8-jre...

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