Use correct identifier for access grant revocation

Author: acoburn

access-grant/src/main/java/com/inrupt/client/accessgrant/AccessGrantClient.java

@@ -298,7 +298,7 @@ public CompletionStage<Void> revoke(final AccessGrant accessGrant) {
             credentialStatus.put("status", Integer.toString(status.getIndex()));
 
             final Map<String, Object> data = new HashMap<>();
-            data.put("credentialId", status.getIdentifier());
+            data.put("credentialId", accessGrant.getIdentifier());
             data.put("credentialStatus", Arrays.asList(credentialStatus));
 
             final Request req = Request.newBuilder(metadata.statusEndpoint)

access-grant/src/test/java/com/inrupt/client/accessgrant/MockAccessGrantServer.java

@@ -180,14 +180,14 @@ private void setupMocks() {
         wireMockServer.stubFor(post(urlEqualTo("/status"))
                     .atPriority(1)
                     .withHeader("Authorization", containing("Bearer eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9."))
-                    .withRequestBody(containing("\"https://accessgrant.example/status/CVAM#2832\""))
+                    .withRequestBody(containing("\"" + wireMockServer.baseUrl() + "/access-grant-1\""))
                     .willReturn(aResponse()
                         .withStatus(204)));
 
         wireMockServer.stubFor(post(urlEqualTo("/status"))
                     .atPriority(1)
                     .withHeader("Authorization", containing("Bearer eyJhbGciOiJFUzI1NiIsInR5cCI6IkpXVCJ9."))
-                    .withRequestBody(containing("\"https://accessgrant.example/status/CVAM#2833\""))
+                    .withRequestBody(containing("\"" + wireMockServer.baseUrl() + "/access-grant-2\""))
                     .willReturn(aResponse()
                         .withStatus(403)));