After updating a Mac to El Capitan, you can't create a SSH connection from Java to your machine.
El Capitan changes which encryption protocols it agrees with out of the box to secure against future bugs like Heartbleed. The Java library Datameer uses doesn't match with El Capitan when authenticating.
1. Add the following line to
2. Restart SSH using the following command:
sudo launchctl stop com.openssh.sshd