Remove usage of @InjectMocks

[dreis2211]

Hi,

this PR removes the usage of @InjectMocks inside tests. For some people - including me - it's similar to field injection and thus not desirable to have.

Cheers,
Christoph

[philwebb]

I think we might even consider adding a checkstyle restriction for this.

[wilkinsona]

I'd quite happily get rid of @Mock too so that setUp() isn't needed at all and the two fields can be final:

private final IntegrationGraphServer server = mock(IntegrationGraphServer.class);

private final IntegrationGraphEndpoint endpoint = new IntegrationGraphEndpoint(this.server);

[dreis2211]

Let me incorporate your comments. Hope SpringOne Platform was/is a blast.

[snicoll]

Well done and thank you again @dreis2211. The conference went well!