Check for null in Project.load()

[ajkannan]

From discussion in #516

[ajkannan]

@mziccard fixed in place

[mziccard]

@ajkannan What do you think about adding tests for Project's load and reload for the cases when the service returns null? Something like:

@Test
public void testLoadNull() {
  expect(resourceManager.get(PROJECT_INFO.projectId())).andReturn(null);
  replay(resourceManager);
  assertNull(Project.load(resourceManager, PROJECT_INFO.projectId()));
}

[ajkannan]

I added a test for reload already, and I think that covers load since reload uses load. But I can still add a test like the one you listed in case reload doesn't use load in the future.

[ajkannan]

@mziccard Added the testLoadNull test

[mziccard]

Looks good to me!