Thanks @stuarthendren , rebased and merged as below. Merged to master [here](https://git-wip-us.apache.org/repos/asf?p=jclouds-labs-google.git;h=65ac580) Backported to 1.8.x [here](https://git-wip-us.apache.org/repos/asf?p=jclouds-labs-google.git;h=4e068d5)
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