I'll merge once verifying all the commands work as expected.

Looks like a few updates will be necessary :)

@lesv I'm concerned that moving to mvn exec:exec is adding a lot of complexity to the sample. To translate 1 of the 3 command line runners (the simple one) to exec:exec has added 100 lines of XML and required careful revision to the run arguments because it does not support passing a complete ARGV to the main Java class and instead requires each individual parameter be passed as variables to mvn exec.

For this PR, I'll be skipping translating the other samples for IoT to this pattern as it will be too much code for a sensible PR.

@gguuss I wasn't expecting you to do all of them. I understood it was annoying and difficult. #1524 was opened for this process.

#1524 was opened for this process.

SGTM, I'll start keeping some notes :) I understand a few advantages of exec:exec it's just a little more verbose.