Installing CBA onto Mac OS X fails

Description

When installing FCSDK or Trials 2.1.2 on a Mac running OS X, the installation fails with the following error:

java.lang.ClassCastException: java.net.Inet6Address cannot be cast to

java.net.Inet4Address
at com.alicecallsbob.installer.common.utils.NetworkInterfacesProcessor.getAllAddresses(NetworkInterfacesProcessor.java:134)
at com.alicecallsbob.installer.application.common.actions.DefaultAsAdminAddressSetter.executeAction(DefaultAsAdminAddressSetter.java:34)
at com.izforge.izpack.installer.IzPanel.executePreActivationActions(IzPanel.java:1215)
at com.izforge.izpack.installer.InstallerFrame.switchPanel(InstallerFrame.java:843)
at com.izforge.izpack.installer.InstallerFrame.navigateNext(InstallerFrame.java:1474)
at com.izforge.izpack.installer.InstallerFrame.navigateNext(InstallerFrame.java:1442)
at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.navigate(InstallerFrame.java:1605)
at com.izforge.izpack.installer.InstallerFrame$NavigationHandler.access$100(InstallerFrame.java:1572)
at com.izforge.izpack.installer.InstallerFrame$NavigationHandler$1.run(InstallerFrame.java:1589)
at java.lang.Thread.run(Thread.java:745)

Problem

IP6 interfaces are active & confusing the installer.

Resolution

Run the terminal command:

networksetup -setv6off Wi-Fi