On a patch passing in a unsuported operator causes errror

[d0roppe]

Describe the bug
If using JSON Patch, passing in delete instead of remove causes error on the patch for the a resource.

{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "fatal",
      "code": "exception",
      "details": {
        "text": "NullPointerException: value"
      }
    }
  ]
}

Environment
Which version of IBM FHIR Server?

To Reproduce
Steps to reproduce the behavior:

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
A clear and concise description of what you expected to happen.

Additional context
Add any other context about the problem here.

[d0roppe]

Verified with the latest code that now passing a invalid operator on a FHIRPath patch or a JSON Patch results in a 400 return code with error information. Closing issue