hub4j · Haarolean · Mar 30, 2026
diff --git a/src/main/java/org/kohsuke/github/GHEventPayload.java b/src/main/java/org/kohsuke/github/GHEventPayload.java
@@ -3,6 +3,7 @@
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.fasterxml.jackson.annotation.JsonSetter;
 import com.infradna.tool.bridge_method_injector.WithBridgeMethods;
+import edu.umd.cs.findbugs.annotations.CheckForNull;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 
 import java.io.IOException;
@@ -445,8 +446,11 @@ public GHRepositoryDiscussion getDiscussion() {
         /**
          * Gets the added or removed label for labeled/unlabeled events.
          *
-         * @return label the added or removed label
+         * May be {@code null} when the unlabeled event was triggered by deleting the label from the repository.
+         *
+         * @return label the added or removed label, or {@code null} if the label was deleted
          */
+        @CheckForNull
         @SuppressFBWarnings(value = { "EI_EXPOSE_REP" }, justification = "Expected")
         public GHLabel getLabel() {
             return label;
@@ -785,8 +789,11 @@ public GHIssue getIssue() {
         /**
          * Gets the added or removed label for labeled/unlabeled events.
          *
-         * @return label the added or removed label
+         * May be {@code null} when the unlabeled event was triggered by deleting the label from the repository.
+         *
+         * @return label the added or removed label, or {@code null} if the label was deleted
          */
+        @CheckForNull
         @SuppressFBWarnings(value = { "EI_EXPOSE_REP" }, justification = "Expected")
         public GHLabel getLabel() {
             return label;
@@ -1103,8 +1110,11 @@ public GHPullRequestChanges getChanges() {
         /**
          * Gets the added or removed label for labeled/unlabeled events.
          *
-         * @return label the added or removed label
+         * May be {@code null} when the unlabeled event was triggered by deleting the label from the repository.
+         *
+         * @return label the added or removed label, or {@code null} if the label was deleted
          */
+        @CheckForNull
         @SuppressFBWarnings(value = { "EI_EXPOSE_REP" }, justification = "Expected")
         public GHLabel getLabel() {
             return label;

diff --git a/src/test/java/org/kohsuke/github/GHEventPayloadTest.java b/src/test/java/org/kohsuke/github/GHEventPayloadTest.java
@@ -690,6 +690,21 @@ public void issue_unlabeled() throws Exception {
         assertThat(event.getLabel().getName(), is("enhancement"));
     }
 
+    /**
+     * Issue unlabeled when label was deleted from repository.
+     *
+     * @throws Exception
+     *             the exception
+     */
+    @Test
+    public void issue_unlabeled_deleted_label() throws Exception {
+        final GHEventPayload.Issue event = GitHub.offline()
+                .parseEventPayload(payload.asReader(), GHEventPayload.Issue.class);
+        assertThat(event.getAction(), is("unlabeled"));
+        assertThat(event.getIssue().getNumber(), is(42));
+        assertThat(event.getLabel(), is(nullValue()));
+    }
+
     /**
      * Issues.
      *

diff --git a/src/test/resources/org/kohsuke/github/GHEventPayloadTest/issue_unlabeled_deleted_label.json b/src/test/resources/org/kohsuke/github/GHEventPayloadTest/issue_unlabeled_deleted_label.json
@@ -0,0 +1,167 @@
+{
+  "action": "unlabeled",
+  "issue": {
+    "url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues/42",
+    "repository_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground",
+    "labels_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues/42/labels{/name}",
+    "comments_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues/42/comments",
+    "events_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues/42/events",
+    "html_url": "https://github.com/gsmet/quarkus-bot-java-playground/issues/42",
+    "id": 835908684,
+    "node_id": "MDU6SXNzdWU4MzU5MDg2ODQ=",
+    "number": 42,
+    "title": "Test GHEventPayload.Issue label/unlabel",
+    "user": {
+      "login": "gsmet",
+      "id": 1279749,
+      "node_id": "MDQ6VXNlcjEyNzk3NDk=",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1279749?v=4",
+      "gravatar_id": "",
+      "url": "https://api.github.com/users/gsmet",
+      "html_url": "https://github.com/gsmet",
+      "followers_url": "https://api.github.com/users/gsmet/followers",
+      "following_url": "https://api.github.com/users/gsmet/following{/other_user}",
+      "gists_url": "https://api.github.com/users/gsmet/gists{/gist_id}",
+      "starred_url": "https://api.github.com/users/gsmet/starred{/owner}{/repo}",
+      "subscriptions_url": "https://api.github.com/users/gsmet/subscriptions",
+      "organizations_url": "https://api.github.com/users/gsmet/orgs",
+      "repos_url": "https://api.github.com/users/gsmet/repos",
+      "events_url": "https://api.github.com/users/gsmet/events{/privacy}",
+      "received_events_url": "https://api.github.com/users/gsmet/received_events",
+      "type": "User",
+      "site_admin": false
+    },
+    "labels": [],
+    "state": "open",
+    "locked": false,
+    "assignee": null,
+    "assignees": [],
+    "milestone": null,
+    "comments": 0,
+    "created_at": "2021-03-19T12:02:09Z",
+    "updated_at": "2021-03-19T12:02:43Z",
+    "closed_at": null,
+    "author_association": "OWNER",
+    "active_lock_reason": null,
+    "body": "",
+    "performed_via_github_app": null
+  },
+  "repository": {
+    "id": 313384129,
+    "node_id": "MDEwOlJlcG9zaXRvcnkzMTMzODQxMjk=",
+    "name": "quarkus-bot-java-playground",
+    "full_name": "gsmet/quarkus-bot-java-playground",
+    "private": true,
+    "owner": {
+      "login": "gsmet",
+      "id": 1279749,
+      "node_id": "MDQ6VXNlcjEyNzk3NDk=",
+      "avatar_url": "https://avatars.githubusercontent.com/u/1279749?v=4",
+      "gravatar_id": "",
+      "url": "https://api.github.com/users/gsmet",
+      "html_url": "https://github.com/gsmet",
+      "followers_url": "https://api.github.com/users/gsmet/followers",
+      "following_url": "https://api.github.com/users/gsmet/following{/other_user}",
+      "gists_url": "https://api.github.com/users/gsmet/gists{/gist_id}",
+      "starred_url": "https://api.github.com/users/gsmet/starred{/owner}{/repo}",
+      "subscriptions_url": "https://api.github.com/users/gsmet/subscriptions",
+      "organizations_url": "https://api.github.com/users/gsmet/orgs",
+      "repos_url": "https://api.github.com/users/gsmet/repos",
+      "events_url": "https://api.github.com/users/gsmet/events{/privacy}",
+      "received_events_url": "https://api.github.com/users/gsmet/received_events",
+      "type": "User",
+      "site_admin": false
+    },
+    "html_url": "https://github.com/gsmet/quarkus-bot-java-playground",
+    "description": null,
+    "fork": false,
+    "url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground",
+    "forks_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/forks",
+    "keys_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/keys{/key_id}",
+    "collaborators_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/collaborators{/collaborator}",
+    "teams_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/teams",
+    "hooks_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/hooks",
+    "issue_events_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues/events{/number}",
+    "events_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/events",
+    "assignees_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/assignees{/user}",
+    "branches_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/branches{/branch}",
+    "tags_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/tags",
+    "blobs_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/git/blobs{/sha}",
+    "git_tags_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/git/tags{/sha}",
+    "git_refs_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/git/refs{/sha}",
+    "trees_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/git/trees{/sha}",
+    "statuses_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/statuses/{sha}",
+    "languages_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/languages",
+    "stargazers_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/stargazers",
+    "contributors_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/contributors",
+    "subscribers_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/subscribers",
+    "subscription_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/subscription",
+    "commits_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/commits{/sha}",
+    "git_commits_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/git/commits{/sha}",
+    "comments_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/comments{/number}",
+    "issue_comment_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues/comments{/number}",
+    "contents_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/contents/{+path}",
+    "compare_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/compare/{base}...{head}",
+    "merges_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/merges",
+    "archive_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/{archive_format}{/ref}",
+    "downloads_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/downloads",
+    "issues_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/issues{/number}",
+    "pulls_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/pulls{/number}",
+    "milestones_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/milestones{/number}",
+    "notifications_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/notifications{?since,all,participating}",
+    "labels_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/labels{/name}",
+    "releases_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/releases{/id}",
+    "deployments_url": "https://api.github.com/repos/gsmet/quarkus-bot-java-playground/deployments",
+    "created_at": "2020-11-16T17:55:53Z",
+    "updated_at": "2020-12-01T08:39:07Z",
+    "pushed_at": "2020-12-01T08:39:05Z",
+    "git_url": "git://github.com/gsmet/quarkus-bot-java-playground.git",
+    "ssh_url": "git@github.com:gsmet/quarkus-bot-java-playground.git",
+    "clone_url": "https://github.com/gsmet/quarkus-bot-java-playground.git",
+    "svn_url": "https://github.com/gsmet/quarkus-bot-java-playground",
+    "homepage": null,
+    "size": 13,
+    "stargazers_count": 0,
+    "watchers_count": 0,
+    "language": null,
+    "has_issues": true,
+    "has_projects": true,
+    "has_downloads": true,
+    "has_wiki": true,
+    "has_pages": false,
+    "forks_count": 1,
+    "mirror_url": null,
+    "archived": false,
+    "disabled": false,
+    "open_issues_count": 14,
+    "license": null,
+    "forks": 1,
+    "open_issues": 14,
+    "watchers": 0,
+    "default_branch": "main"
+  },
+  "sender": {
+    "login": "gsmet",
+    "id": 1279749,
+    "node_id": "MDQ6VXNlcjEyNzk3NDk=",
+    "avatar_url": "https://avatars.githubusercontent.com/u/1279749?v=4",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/gsmet",
+    "html_url": "https://github.com/gsmet",
+    "followers_url": "https://api.github.com/users/gsmet/followers",
+    "following_url": "https://api.github.com/users/gsmet/following{/other_user}",
+    "gists_url": "https://api.github.com/users/gsmet/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/gsmet/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/gsmet/subscriptions",
+    "organizations_url": "https://api.github.com/users/gsmet/orgs",
+    "repos_url": "https://api.github.com/users/gsmet/repos",
+    "events_url": "https://api.github.com/users/gsmet/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/gsmet/received_events",
+    "type": "User",
+    "site_admin": false
+  },
+  "installation": {
+    "id": 13005535,
+    "node_id": "MDIzOkludGVncmF0aW9uSW5zdGFsbGF0aW9uMTMwMDU1MzU="
+  }
+}