add missing nodeId to Comment

src/main/java/com/spotify/github/v3/comment/Comment.java

@@ -7,9 +7,9 @@
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
- * 
+ *
  *      http://www.apache.org/licenses/LICENSE-2.0
- * 
+ *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@@ -75,4 +75,8 @@ public interface Comment extends UpdateTracking {
 
   /** The issueURL which the comment belongs to. */
   Optional<URI> issueUrl();
+
+  /** Node ID */
+  @Nullable
+  String nodeId();
 }

src/test/java/com/spotify/github/v3/activity/events/IssueCommentEventTest.java

@@ -0,0 +1,49 @@
+/*-
+ * -\-\-
+ * github-api
+ * --
+ * Copyright (C) 2016 - 2020 Spotify AB
+ * --
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * -/-/-
+ */
+
+package com.spotify.github.v3.activity.events;
+
+import java.io.IOException;
+import static java.nio.charset.Charset.defaultCharset;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.core.Is.is;
+import org.junit.jupiter.api.Test;
+
+import com.google.common.io.Resources;
+import static com.google.common.io.Resources.getResource;
+import com.spotify.github.jackson.Json;
+
+public class IssueCommentEventTest {
+
+  @Test
+  public void testDeserialization() throws IOException {
+    String fixture =
+        Resources.toString(
+            getResource(this.getClass(), "fixtures/issue_comment_event.json"), defaultCharset());
+    final IssueCommentEvent event = Json.create().fromJson(fixture, IssueCommentEvent.class);
+    assertThat(event.action(), is("created"));
+    assertThat(event.issue().number(), is(2L));
+    assertThat(event.comment().id(), is(99262140L));
+    assertThat(event.comment().nodeId(), is("asd123"));
+    assertThat(
+        event.comment().body(), is("You are totally right! I'll get this fixed right away."));
+  }
+}

src/test/resources/com/spotify/github/v3/activity/events/fixtures/issue_comment_event.json

@@ -32,7 +32,9 @@
       {
         "url": "https://api.github.com/repos/baxterthehacker/public-repo/labels/bug",
         "name": "bug",
-        "color": "fc2929"
+        "color": "fc2929",
+        "default": false,
+        "id": 208045946
       }
     ],
     "state": "open",
@@ -50,6 +52,7 @@
     "html_url": "https://github.com/baxterthehacker/public-repo/issues/2#issuecomment-99262140",
     "issue_url": "https://api.github.com/repos/baxterthehacker/public-repo/issues/2",
     "id": 99262140,
+    "node_id": "asd123",
     "user": {
       "login": "baxterthehacker",
       "id": 6752317,