What steps will reproduce the problem? 1. Create a LaunchConfiguration for Jec2 runInstances and set blockDevicemappings property to null 2. pass the LaunchConfiguration to Jec2 runInstances function.

What is the expected output? What do you see instead? It should launch an instance without any device mappings, but it fails due to a NullPointerException in Typica.

What version of the product are you using? On what operating system? Typica SVN r323 with Eucalyptus 1.6

Please provide any additional information below. I'va attached a patch for this :)

This was fixed when I fixed issue #95