ServiceProviderConfig request throws MessageBodyWriter not found for media type exception

[dhubbard-ag]

Describe the bug
A request to service for /ServiceProviderConfig returns a 500 error, throws a JavaException

Severe:   MessageBodyWriter not found for media type=application/scim+json, type=class com.unboundid.scim2.common.GenericScimResource, genericType=class com.unboundid.scim2.common.GenericScimResource.

I found a similar problem #131 - and followed the resolution there and added jackson media dependency

        <dependency>
            <groupId>org.glassfish.jersey.media</groupId>
            <artifactId>jersey-media-json-jackson</artifactId>
            <version>2.30</version>
        </dependency>    

With this the exception changes to:

Severe:   MessageBodyWriter not found for media type=application/json, type=class com.unboundid.scim2.common.GenericScimResource, genericType=class com.unboundid.scim2.common.GenericScimResource.

To Reproduce

1. Created a new Web Application Maven project (in NetBeans 8.2)

2. Added ServiceProviderConfigEndpoint (based on TestServiceProviderConfigEndpoint.java in Server project.

package com.mycompany.scim;

import com.unboundid.scim2.common.types.AuthenticationScheme;
import com.unboundid.scim2.common.types.BulkConfig;
import com.unboundid.scim2.common.types.ChangePasswordConfig;
import com.unboundid.scim2.common.types.ETagConfig;
import com.unboundid.scim2.common.types.FilterConfig;
import com.unboundid.scim2.common.types.PatchConfig;
import com.unboundid.scim2.common.types.ServiceProviderConfigResource;
import com.unboundid.scim2.common.exceptions.ScimException;
import com.unboundid.scim2.common.types.SortConfig;
import static com.unboundid.scim2.common.utils.ApiConstants.MEDIA_TYPE_SCIM;
import com.unboundid.scim2.server.annotations.ResourceType;
import com.unboundid.scim2.server.resources.
    AbstractServiceProviderConfigEndpoint;

import java.util.Collections;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;

/**
 * A test Service Provider Config endpoint implementation that just serves up
 * a canned config.
 */
@ResourceType(
    description = "SCIM 2.0 Service Provider Config",
    name = "ServiceProviderConfig",
    schema = ServiceProviderConfigResource.class,
    discoverable = false)
@Path("/ServiceProviderConfig")
public class ServiceProviderConfigEndpoint
    extends AbstractServiceProviderConfigEndpoint
{
  /**
   * {@inheritDoc}
   */
    @Override
    @Produces({MEDIA_TYPE_SCIM, MediaType.APPLICATION_JSON})
    public ServiceProviderConfigResource getServiceProviderConfig()
      throws ScimException
    {
        System.out.println("Received Get for /ServiceProviderConfig");
        return create();
    }

    /**
     * Create a test config resource.
     *
     * @return The created resource.
     */
    public static ServiceProviderConfigResource create()
    {
        return new ServiceProviderConfigResource("https://doc",
          new PatchConfig(true),
          new BulkConfig(true, 100, 1000),
          new FilterConfig(true, 200),
          new ChangePasswordConfig(true),
          new SortConfig(true),
          new ETagConfig(false),
          Collections.singletonList(
              new AuthenticationScheme(
                  "Basic", "HTTP BASIC", null, null, "httpbasic", true)));
    }
}

3. Deploy to Glassfish

4. Call http://localhost:8880/SCIMProvider/rest/ServiceProviderConfig

Expected behavior
Should return the generated json data (this from log message before exception) with a 200 response

{
  "schemas" : [ "urn:ietf:params:scim:schemas:core:2.0:ServiceProviderConfig" ],
  "documentationUri" : "https://doc",
  "patch" : {
    "supported" : true
  },
  "bulk" : {
    "supported" : true,
    "maxOperations" : 100,
    "maxPayloadSize" : 1000
  },
  "filter" : {
    "supported" : true,
    "maxResults" : 200
  },
  "changePassword" : {
    "supported" : true
  },
  "sort" : {
    "supported" : true
  },
  "etag" : {
    "supported" : false
  },
  "authenticationSchemes" : [ {
    "name" : "Basic",
    "description" : "HTTP BASIC",
    "type" : "httpbasic",
    "primary" : true
  } ],
  "meta" : {
    "resourceType" : "ServiceProviderConfig",
    "location" : "http://localhost:8880/SCIMProvider/rest/ServiceProviderConfig"
  }

Additional context

• Java version: Java 8
• Server: Glassfish 4.1
• SCIM 2 SDK version: 2.3.2