In Docker Explorer, when I want to create my first connection, I click on the link to create a connection, the dialog is opened and I get this in my Error View:

bash: no job control in this shell
An exception stack trace is not available.

Another warning is generated also:
Could not find default settings to connect to a local Docker daemon
An exception stack trace is not available.

I'm on OS X and have boot2docker running. By default, boot2docker will not add the DOCKER variables to .bash_profile, it will only instruct me to set them up like this:
export DOCKER_HOST=tcp://192.168.59.103:2376
export DOCKER_CERT_PATH=/Users/rasp/.boot2docker/certs/boot2docker-vm
export DOCKER_TLS_VERIFY=1

With the way the script in the Docker Tooling works (env | grep DOCKER), it cannot detect the variables unless they are in .bash_profile.
But even if I added them there (and a new Terminal window has these variables), Eclipse still can't detect the running Docker instance.
So something is wrong.

I logged an upstream bug here:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=469624