Some mocked OCI interfaces need to be updated every time OCI makes a backwards-incompatible release

[ljnelson]

Here is an arbitrary example:

helidon/integrations/oci/metrics/cdi/src/test/java/io/helidon/integrations/oci/metrics/cdi/OciMetricsCdiExtensionTest.java

Line 186 in 16ca27b

static class MockMonitoring implements Monitoring {

The Monitoring interface gained a few methods, which is a backwards-incompatible change. Currently, we solve this problem by manually adding "no-op" methods as appropriate.

Instead, for mock implementations of business interfaces such as these, we should use something like java.lang.reflect.Proxy or Mockito or something to implement only the parts we truly need to test.

[klustria]

I think I have an idea on what to do with this, hence moving to Sprint Scope.

[klustria]

Should be resolved via PR #8474.