GCHQDeveloper314

This is small piece of work. I would anticipate only a couple of new files containing some basic Unit tests.

At least the module `spark-library` requires `graphframes:graphframes` which is not in Maven central. There [doesn't appear to be a way](https://stackoverflow.com/questions/3168319/how-to-specify-a-repository-for-a-dependency-in-maven/3168956#3168956) to prevent maven from also trying to use this repository...

To what extent was this completed by [gaffer-docker #154](https://github.com/gchq/gaffer-docker/pull/154)? That provides an Accumulo cluster and runs all the tests from the Accumulo Store on it.

I came across this problem when adding Kerberos support to the Accumulo Store. This Federated Store Accumulo connection needed to be changed so it would not rely on username/password authentication....

Are you suggesting that an extension should replace those methods, or that the annotations should be removed entirely as well?

The file `rest-api/core-rest/src/test/java/uk/gov/gchq/gaffer/rest/service/v2/OperationServiceV2IT.java` is showing as only copyright changed. I think this can be undone as well, such that the file is not mentioned in the changes at all, it...

The way forward does look to be to add a proper way to rename graphs, but this seems to be a little more complex than it appears. The federated store...

Another use case for this has been identified for reducing duplication in Operation chains. A simple example is where an different value should be used within the chain based on...

This doc should form part of the `gaffer-doc` repo. See #24

I'm not able to reproduce this error. Could you provide more details on your environment and have you made any changes to the files in the repo? Running `curl localhost:8080/rest/graph/config/schema`...