Jclouds can't create instance

I'm experiencing strange behavior during instance creation on Google Compute Engine. When I try to create and start ubuntu-1410-utopic instance all is working as expected but if I try to create instance ubuntu-1404-trusty I get exception:

java.util.concurrent.ExecutionException: org.jclouds.http.HttpResponseException: command: POST https://www.googleapis.com/compute/v1/projects/myProjectName/zones/asia-east1-a/instances HTTP/1.1 failed with response: HTTP/1.1 400 BadRequest; content:

[{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "invalid",
    "message": "Invalid value for field 'resource.name': '615aa438-ef50-4c19-850b-e483a294d944-955'.  Must be a match of regex '(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?)'"
   }
  ],
  "code": 400,
  "message": "Invalid value for field 'resource.name': '615aa438-ef50-4c19-850b-e483a294d944-955'.  Must be a match of regex '(?:[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?)'"
 }
}]

Why does this happens, and what is resource.name?

UPDATE

I found the answer, see answers sections.

Solution

The reason was dead simple. You can't create new instance on GCE if it's name starts with a digit. Use letters instead.

I had some random UUID as a name (615aa438-ef50-4c19-850b-e483a294d944 in example above) and jclouds added some suffix (-955 here).