diff --git a/.gitignore b/.gitignore
index 5d7a7d20df..543ce576cd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,5 @@ target
 .DS_Store
 
 dependency-reduced-pom.xml
+.factorypath
+.vscode/settings.json
diff --git a/src/main/java/org/kohsuke/github/GHRepository.java b/src/main/java/org/kohsuke/github/GHRepository.java
index 47424fe50e..1093434915 100644
--- a/src/main/java/org/kohsuke/github/GHRepository.java
+++ b/src/main/java/org/kohsuke/github/GHRepository.java
@@ -25,6 +25,8 @@
 
 import com.fasterxml.jackson.annotation.JsonProperty;
 import com.infradna.tool.bridge_method_injector.WithBridgeMethods;
+import edu.umd.cs.findbugs.annotations.CheckForNull;
+import edu.umd.cs.findbugs.annotations.NonNull;
 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
 import org.apache.commons.lang3.StringUtils;
 
@@ -813,7 +815,7 @@ public GHPermissionType getPermission(String user) throws IOException {
      * Obtain permission for a given user in this repository.
      *
      * @param u
-     *            the u
+     *            the user
      * @return the permission
      * @throws IOException
      *             the io exception
@@ -835,6 +837,20 @@ public Set<GHTeam> getTeams() throws IOException {
                         root.getOrganization(getOwnerName())))));
     }
 
+    /**
+     * Add collaborators.
+     *
+     * @param users
+     *            the users
+     * @param permission
+     *            the permission level
+     * @throws IOException
+     *             the io exception
+     */
+    public void addCollaborators(GHOrganization.Permission permission, GHUser... users) throws IOException {
+        addCollaborators(asList(users), permission);
+    }
+
     /**
      * Add collaborators.
      *
@@ -856,7 +872,21 @@ public void addCollaborators(GHUser... users) throws IOException {
      *             the io exception
      */
     public void addCollaborators(Collection<GHUser> users) throws IOException {
-        modifyCollaborators(users, "PUT");
+        modifyCollaborators(users, "PUT", null);
+    }
+
+    /**
+     * Add collaborators.
+     *
+     * @param users
+     *            the users
+     * @param permission
+     *            the permission level
+     * @throws IOException
+     *             the io exception
+     */
+    public void addCollaborators(Collection<GHUser> users, GHOrganization.Permission permission) throws IOException {
+        modifyCollaborators(users, "PUT", permission);
     }
 
     /**
@@ -880,12 +910,20 @@ public void removeCollaborators(GHUser... users) throws IOException {
      *             the io exception
      */
     public void removeCollaborators(Collection<GHUser> users) throws IOException {
-        modifyCollaborators(users, "DELETE");
+        modifyCollaborators(users, "DELETE", null);
     }
 
-    private void modifyCollaborators(Collection<GHUser> users, String method) throws IOException {
+    private void modifyCollaborators(@NonNull Collection<GHUser> users,
+            @NonNull String method,
+            @CheckForNull GHOrganization.Permission permission) throws IOException {
+        Requester requester = root.createRequest().method(method);
+
+        if (permission != null) {
+            requester = requester.with("permission", permission).inBody();
+        }
+
         for (GHUser user : users) {
-            root.createRequest().method(method).withUrlPath(getApiTailUrl("collaborators/" + user.getLogin())).send();
+            requester.withUrlPath(getApiTailUrl("collaborators/" + user.getLogin())).send();
         }
     }
 
diff --git a/src/test/java/org/kohsuke/github/GHRepositoryTest.java b/src/test/java/org/kohsuke/github/GHRepositoryTest.java
index 9508978eb1..4d556a189d 100644
--- a/src/test/java/org/kohsuke/github/GHRepositoryTest.java
+++ b/src/test/java/org/kohsuke/github/GHRepositoryTest.java
@@ -158,6 +158,22 @@ public void LatestRepositoryExist() {
         }
     }
 
+    @Test
+    public void addCollaborators() throws Exception {
+        GHRepository repo = getRepository();
+        GHUser user = getUser();
+        List<GHUser> users = new ArrayList<GHUser>();
+
+        users.add(user);
+        repo.addCollaborators(users, GHOrganization.Permission.PUSH);
+
+        GHPersonSet<GHUser> collabs = repo.getCollaborators();
+
+        GHUser colabUser = collabs.byLogin("jimmysombrero");
+
+        assertEquals(colabUser.getName(), user.getName());
+    }
+
     @Test
     public void LatestRepositoryNotExist() {
         try {
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/orgs_github-api-test-org-a3d2b552-58b8-4028-b731-d00420496ca8.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/orgs_github-api-test-org-a3d2b552-58b8-4028-b731-d00420496ca8.json
new file mode 100644
index 0000000000..e57a3a127b
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/orgs_github-api-test-org-a3d2b552-58b8-4028-b731-d00420496ca8.json
@@ -0,0 +1,25 @@
+{
+  "login": "github-api-test-org",
+  "id": 7544739,
+  "node_id": "MDEyOk9yZ2FuaXphdGlvbjc1NDQ3Mzk=",
+  "url": "https://api.github.com/orgs/github-api-test-org",
+  "repos_url": "https://api.github.com/orgs/github-api-test-org/repos",
+  "events_url": "https://api.github.com/orgs/github-api-test-org/events",
+  "hooks_url": "https://api.github.com/orgs/github-api-test-org/hooks",
+  "issues_url": "https://api.github.com/orgs/github-api-test-org/issues",
+  "members_url": "https://api.github.com/orgs/github-api-test-org/members{/member}",
+  "public_members_url": "https://api.github.com/orgs/github-api-test-org/public_members{/member}",
+  "avatar_url": "https://avatars3.githubusercontent.com/u/7544739?v=4",
+  "description": null,
+  "is_verified": false,
+  "has_organization_projects": true,
+  "has_repository_projects": true,
+  "public_repos": 10,
+  "public_gists": 0,
+  "followers": 0,
+  "following": 0,
+  "html_url": "https://github.com/github-api-test-org",
+  "created_at": "2014-05-10T19:39:11Z",
+  "updated_at": "2015-04-20T00:42:30Z",
+  "type": "Organization"
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/repos_github-api-test-org_github-api-95ce4098-4e40-49f0-8661-0870614d5d78.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/repos_github-api-test-org_github-api-95ce4098-4e40-49f0-8661-0870614d5d78.json
new file mode 100644
index 0000000000..b945be16e4
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/repos_github-api-test-org_github-api-95ce4098-4e40-49f0-8661-0870614d5d78.json
@@ -0,0 +1,328 @@
+{
+  "id": 206888201,
+  "node_id": "MDEwOlJlcG9zaXRvcnkyMDY4ODgyMDE=",
+  "name": "github-api",
+  "full_name": "github-api-test-org/github-api",
+  "private": false,
+  "owner": {
+    "login": "github-api-test-org",
+    "id": 7544739,
+    "node_id": "MDEyOk9yZ2FuaXphdGlvbjc1NDQ3Mzk=",
+    "avatar_url": "https://avatars3.githubusercontent.com/u/7544739?v=4",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/github-api-test-org",
+    "html_url": "https://github.com/github-api-test-org",
+    "followers_url": "https://api.github.com/users/github-api-test-org/followers",
+    "following_url": "https://api.github.com/users/github-api-test-org/following{/other_user}",
+    "gists_url": "https://api.github.com/users/github-api-test-org/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/github-api-test-org/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/github-api-test-org/subscriptions",
+    "organizations_url": "https://api.github.com/users/github-api-test-org/orgs",
+    "repos_url": "https://api.github.com/users/github-api-test-org/repos",
+    "events_url": "https://api.github.com/users/github-api-test-org/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/github-api-test-org/received_events",
+    "type": "Organization",
+    "site_admin": false
+  },
+  "html_url": "https://github.com/github-api-test-org/github-api",
+  "description": "Tricky",
+  "fork": true,
+  "url": "https://api.github.com/repos/github-api-test-org/github-api",
+  "forks_url": "https://api.github.com/repos/github-api-test-org/github-api/forks",
+  "keys_url": "https://api.github.com/repos/github-api-test-org/github-api/keys{/key_id}",
+  "collaborators_url": "https://api.github.com/repos/github-api-test-org/github-api/collaborators{/collaborator}",
+  "teams_url": "https://api.github.com/repos/github-api-test-org/github-api/teams",
+  "hooks_url": "https://api.github.com/repos/github-api-test-org/github-api/hooks",
+  "issue_events_url": "https://api.github.com/repos/github-api-test-org/github-api/issues/events{/number}",
+  "events_url": "https://api.github.com/repos/github-api-test-org/github-api/events",
+  "assignees_url": "https://api.github.com/repos/github-api-test-org/github-api/assignees{/user}",
+  "branches_url": "https://api.github.com/repos/github-api-test-org/github-api/branches{/branch}",
+  "tags_url": "https://api.github.com/repos/github-api-test-org/github-api/tags",
+  "blobs_url": "https://api.github.com/repos/github-api-test-org/github-api/git/blobs{/sha}",
+  "git_tags_url": "https://api.github.com/repos/github-api-test-org/github-api/git/tags{/sha}",
+  "git_refs_url": "https://api.github.com/repos/github-api-test-org/github-api/git/refs{/sha}",
+  "trees_url": "https://api.github.com/repos/github-api-test-org/github-api/git/trees{/sha}",
+  "statuses_url": "https://api.github.com/repos/github-api-test-org/github-api/statuses/{sha}",
+  "languages_url": "https://api.github.com/repos/github-api-test-org/github-api/languages",
+  "stargazers_url": "https://api.github.com/repos/github-api-test-org/github-api/stargazers",
+  "contributors_url": "https://api.github.com/repos/github-api-test-org/github-api/contributors",
+  "subscribers_url": "https://api.github.com/repos/github-api-test-org/github-api/subscribers",
+  "subscription_url": "https://api.github.com/repos/github-api-test-org/github-api/subscription",
+  "commits_url": "https://api.github.com/repos/github-api-test-org/github-api/commits{/sha}",
+  "git_commits_url": "https://api.github.com/repos/github-api-test-org/github-api/git/commits{/sha}",
+  "comments_url": "https://api.github.com/repos/github-api-test-org/github-api/comments{/number}",
+  "issue_comment_url": "https://api.github.com/repos/github-api-test-org/github-api/issues/comments{/number}",
+  "contents_url": "https://api.github.com/repos/github-api-test-org/github-api/contents/{+path}",
+  "compare_url": "https://api.github.com/repos/github-api-test-org/github-api/compare/{base}...{head}",
+  "merges_url": "https://api.github.com/repos/github-api-test-org/github-api/merges",
+  "archive_url": "https://api.github.com/repos/github-api-test-org/github-api/{archive_format}{/ref}",
+  "downloads_url": "https://api.github.com/repos/github-api-test-org/github-api/downloads",
+  "issues_url": "https://api.github.com/repos/github-api-test-org/github-api/issues{/number}",
+  "pulls_url": "https://api.github.com/repos/github-api-test-org/github-api/pulls{/number}",
+  "milestones_url": "https://api.github.com/repos/github-api-test-org/github-api/milestones{/number}",
+  "notifications_url": "https://api.github.com/repos/github-api-test-org/github-api/notifications{?since,all,participating}",
+  "labels_url": "https://api.github.com/repos/github-api-test-org/github-api/labels{/name}",
+  "releases_url": "https://api.github.com/repos/github-api-test-org/github-api/releases{/id}",
+  "deployments_url": "https://api.github.com/repos/github-api-test-org/github-api/deployments",
+  "created_at": "2019-09-06T23:26:04Z",
+  "updated_at": "2020-01-16T21:22:56Z",
+  "pushed_at": "2020-01-18T00:47:43Z",
+  "git_url": "git://github.com/github-api-test-org/github-api.git",
+  "ssh_url": "git@github.com:github-api-test-org/github-api.git",
+  "clone_url": "https://github.com/github-api-test-org/github-api.git",
+  "svn_url": "https://github.com/github-api-test-org/github-api",
+  "homepage": "http://github-api.kohsuke.org/",
+  "size": 11414,
+  "stargazers_count": 0,
+  "watchers_count": 0,
+  "language": "Java",
+  "has_issues": true,
+  "has_projects": true,
+  "has_downloads": true,
+  "has_wiki": true,
+  "has_pages": false,
+  "forks_count": 0,
+  "mirror_url": null,
+  "archived": false,
+  "disabled": false,
+  "open_issues_count": 0,
+  "license": {
+    "key": "mit",
+    "name": "MIT License",
+    "spdx_id": "MIT",
+    "url": "https://api.github.com/licenses/mit",
+    "node_id": "MDc6TGljZW5zZTEz"
+  },
+  "forks": 0,
+  "open_issues": 0,
+  "watchers": 0,
+  "default_branch": "master",
+  "permissions": {
+    "admin": false,
+    "push": false,
+    "pull": true
+  },
+  "temp_clone_token": "",
+  "organization": {
+    "login": "github-api-test-org",
+    "id": 7544739,
+    "node_id": "MDEyOk9yZ2FuaXphdGlvbjc1NDQ3Mzk=",
+    "avatar_url": "https://avatars3.githubusercontent.com/u/7544739?v=4",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/github-api-test-org",
+    "html_url": "https://github.com/github-api-test-org",
+    "followers_url": "https://api.github.com/users/github-api-test-org/followers",
+    "following_url": "https://api.github.com/users/github-api-test-org/following{/other_user}",
+    "gists_url": "https://api.github.com/users/github-api-test-org/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/github-api-test-org/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/github-api-test-org/subscriptions",
+    "organizations_url": "https://api.github.com/users/github-api-test-org/orgs",
+    "repos_url": "https://api.github.com/users/github-api-test-org/repos",
+    "events_url": "https://api.github.com/users/github-api-test-org/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/github-api-test-org/received_events",
+    "type": "Organization",
+    "site_admin": false
+  },
+  "parent": {
+    "id": 617210,
+    "node_id": "MDEwOlJlcG9zaXRvcnk2MTcyMTA=",
+    "name": "github-api",
+    "full_name": "github-api/github-api",
+    "private": false,
+    "owner": {
+      "login": "github-api",
+      "id": 54909825,
+      "node_id": "MDEyOk9yZ2FuaXphdGlvbjU0OTA5ODI1",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/54909825?v=4",
+      "gravatar_id": "",
+      "url": "https://api.github.com/users/github-api",
+      "html_url": "https://github.com/github-api",
+      "followers_url": "https://api.github.com/users/github-api/followers",
+      "following_url": "https://api.github.com/users/github-api/following{/other_user}",
+      "gists_url": "https://api.github.com/users/github-api/gists{/gist_id}",
+      "starred_url": "https://api.github.com/users/github-api/starred{/owner}{/repo}",
+      "subscriptions_url": "https://api.github.com/users/github-api/subscriptions",
+      "organizations_url": "https://api.github.com/users/github-api/orgs",
+      "repos_url": "https://api.github.com/users/github-api/repos",
+      "events_url": "https://api.github.com/users/github-api/events{/privacy}",
+      "received_events_url": "https://api.github.com/users/github-api/received_events",
+      "type": "Organization",
+      "site_admin": false
+    },
+    "html_url": "https://github.com/github-api/github-api",
+    "description": "Java API for GitHub",
+    "fork": false,
+    "url": "https://api.github.com/repos/github-api/github-api",
+    "forks_url": "https://api.github.com/repos/github-api/github-api/forks",
+    "keys_url": "https://api.github.com/repos/github-api/github-api/keys{/key_id}",
+    "collaborators_url": "https://api.github.com/repos/github-api/github-api/collaborators{/collaborator}",
+    "teams_url": "https://api.github.com/repos/github-api/github-api/teams",
+    "hooks_url": "https://api.github.com/repos/github-api/github-api/hooks",
+    "issue_events_url": "https://api.github.com/repos/github-api/github-api/issues/events{/number}",
+    "events_url": "https://api.github.com/repos/github-api/github-api/events",
+    "assignees_url": "https://api.github.com/repos/github-api/github-api/assignees{/user}",
+    "branches_url": "https://api.github.com/repos/github-api/github-api/branches{/branch}",
+    "tags_url": "https://api.github.com/repos/github-api/github-api/tags",
+    "blobs_url": "https://api.github.com/repos/github-api/github-api/git/blobs{/sha}",
+    "git_tags_url": "https://api.github.com/repos/github-api/github-api/git/tags{/sha}",
+    "git_refs_url": "https://api.github.com/repos/github-api/github-api/git/refs{/sha}",
+    "trees_url": "https://api.github.com/repos/github-api/github-api/git/trees{/sha}",
+    "statuses_url": "https://api.github.com/repos/github-api/github-api/statuses/{sha}",
+    "languages_url": "https://api.github.com/repos/github-api/github-api/languages",
+    "stargazers_url": "https://api.github.com/repos/github-api/github-api/stargazers",
+    "contributors_url": "https://api.github.com/repos/github-api/github-api/contributors",
+    "subscribers_url": "https://api.github.com/repos/github-api/github-api/subscribers",
+    "subscription_url": "https://api.github.com/repos/github-api/github-api/subscription",
+    "commits_url": "https://api.github.com/repos/github-api/github-api/commits{/sha}",
+    "git_commits_url": "https://api.github.com/repos/github-api/github-api/git/commits{/sha}",
+    "comments_url": "https://api.github.com/repos/github-api/github-api/comments{/number}",
+    "issue_comment_url": "https://api.github.com/repos/github-api/github-api/issues/comments{/number}",
+    "contents_url": "https://api.github.com/repos/github-api/github-api/contents/{+path}",
+    "compare_url": "https://api.github.com/repos/github-api/github-api/compare/{base}...{head}",
+    "merges_url": "https://api.github.com/repos/github-api/github-api/merges",
+    "archive_url": "https://api.github.com/repos/github-api/github-api/{archive_format}{/ref}",
+    "downloads_url": "https://api.github.com/repos/github-api/github-api/downloads",
+    "issues_url": "https://api.github.com/repos/github-api/github-api/issues{/number}",
+    "pulls_url": "https://api.github.com/repos/github-api/github-api/pulls{/number}",
+    "milestones_url": "https://api.github.com/repos/github-api/github-api/milestones{/number}",
+    "notifications_url": "https://api.github.com/repos/github-api/github-api/notifications{?since,all,participating}",
+    "labels_url": "https://api.github.com/repos/github-api/github-api/labels{/name}",
+    "releases_url": "https://api.github.com/repos/github-api/github-api/releases{/id}",
+    "deployments_url": "https://api.github.com/repos/github-api/github-api/deployments",
+    "created_at": "2010-04-19T04:13:03Z",
+    "updated_at": "2020-02-01T02:00:03Z",
+    "pushed_at": "2020-02-02T04:40:57Z",
+    "git_url": "git://github.com/github-api/github-api.git",
+    "ssh_url": "git@github.com:github-api/github-api.git",
+    "clone_url": "https://github.com/github-api/github-api.git",
+    "svn_url": "https://github.com/github-api/github-api",
+    "homepage": "https://github-api.kohsuke.org/",
+    "size": 19341,
+    "stargazers_count": 607,
+    "watchers_count": 607,
+    "language": "Java",
+    "has_issues": true,
+    "has_projects": true,
+    "has_downloads": true,
+    "has_wiki": true,
+    "has_pages": true,
+    "forks_count": 450,
+    "mirror_url": null,
+    "archived": false,
+    "disabled": false,
+    "open_issues_count": 54,
+    "license": {
+      "key": "mit",
+      "name": "MIT License",
+      "spdx_id": "MIT",
+      "url": "https://api.github.com/licenses/mit",
+      "node_id": "MDc6TGljZW5zZTEz"
+    },
+    "forks": 450,
+    "open_issues": 54,
+    "watchers": 607,
+    "default_branch": "master"
+  },
+  "source": {
+    "id": 617210,
+    "node_id": "MDEwOlJlcG9zaXRvcnk2MTcyMTA=",
+    "name": "github-api",
+    "full_name": "github-api/github-api",
+    "private": false,
+    "owner": {
+      "login": "github-api",
+      "id": 54909825,
+      "node_id": "MDEyOk9yZ2FuaXphdGlvbjU0OTA5ODI1",
+      "avatar_url": "https://avatars3.githubusercontent.com/u/54909825?v=4",
+      "gravatar_id": "",
+      "url": "https://api.github.com/users/github-api",
+      "html_url": "https://github.com/github-api",
+      "followers_url": "https://api.github.com/users/github-api/followers",
+      "following_url": "https://api.github.com/users/github-api/following{/other_user}",
+      "gists_url": "https://api.github.com/users/github-api/gists{/gist_id}",
+      "starred_url": "https://api.github.com/users/github-api/starred{/owner}{/repo}",
+      "subscriptions_url": "https://api.github.com/users/github-api/subscriptions",
+      "organizations_url": "https://api.github.com/users/github-api/orgs",
+      "repos_url": "https://api.github.com/users/github-api/repos",
+      "events_url": "https://api.github.com/users/github-api/events{/privacy}",
+      "received_events_url": "https://api.github.com/users/github-api/received_events",
+      "type": "Organization",
+      "site_admin": false
+    },
+    "html_url": "https://github.com/github-api/github-api",
+    "description": "Java API for GitHub",
+    "fork": false,
+    "url": "https://api.github.com/repos/github-api/github-api",
+    "forks_url": "https://api.github.com/repos/github-api/github-api/forks",
+    "keys_url": "https://api.github.com/repos/github-api/github-api/keys{/key_id}",
+    "collaborators_url": "https://api.github.com/repos/github-api/github-api/collaborators{/collaborator}",
+    "teams_url": "https://api.github.com/repos/github-api/github-api/teams",
+    "hooks_url": "https://api.github.com/repos/github-api/github-api/hooks",
+    "issue_events_url": "https://api.github.com/repos/github-api/github-api/issues/events{/number}",
+    "events_url": "https://api.github.com/repos/github-api/github-api/events",
+    "assignees_url": "https://api.github.com/repos/github-api/github-api/assignees{/user}",
+    "branches_url": "https://api.github.com/repos/github-api/github-api/branches{/branch}",
+    "tags_url": "https://api.github.com/repos/github-api/github-api/tags",
+    "blobs_url": "https://api.github.com/repos/github-api/github-api/git/blobs{/sha}",
+    "git_tags_url": "https://api.github.com/repos/github-api/github-api/git/tags{/sha}",
+    "git_refs_url": "https://api.github.com/repos/github-api/github-api/git/refs{/sha}",
+    "trees_url": "https://api.github.com/repos/github-api/github-api/git/trees{/sha}",
+    "statuses_url": "https://api.github.com/repos/github-api/github-api/statuses/{sha}",
+    "languages_url": "https://api.github.com/repos/github-api/github-api/languages",
+    "stargazers_url": "https://api.github.com/repos/github-api/github-api/stargazers",
+    "contributors_url": "https://api.github.com/repos/github-api/github-api/contributors",
+    "subscribers_url": "https://api.github.com/repos/github-api/github-api/subscribers",
+    "subscription_url": "https://api.github.com/repos/github-api/github-api/subscription",
+    "commits_url": "https://api.github.com/repos/github-api/github-api/commits{/sha}",
+    "git_commits_url": "https://api.github.com/repos/github-api/github-api/git/commits{/sha}",
+    "comments_url": "https://api.github.com/repos/github-api/github-api/comments{/number}",
+    "issue_comment_url": "https://api.github.com/repos/github-api/github-api/issues/comments{/number}",
+    "contents_url": "https://api.github.com/repos/github-api/github-api/contents/{+path}",
+    "compare_url": "https://api.github.com/repos/github-api/github-api/compare/{base}...{head}",
+    "merges_url": "https://api.github.com/repos/github-api/github-api/merges",
+    "archive_url": "https://api.github.com/repos/github-api/github-api/{archive_format}{/ref}",
+    "downloads_url": "https://api.github.com/repos/github-api/github-api/downloads",
+    "issues_url": "https://api.github.com/repos/github-api/github-api/issues{/number}",
+    "pulls_url": "https://api.github.com/repos/github-api/github-api/pulls{/number}",
+    "milestones_url": "https://api.github.com/repos/github-api/github-api/milestones{/number}",
+    "notifications_url": "https://api.github.com/repos/github-api/github-api/notifications{?since,all,participating}",
+    "labels_url": "https://api.github.com/repos/github-api/github-api/labels{/name}",
+    "releases_url": "https://api.github.com/repos/github-api/github-api/releases{/id}",
+    "deployments_url": "https://api.github.com/repos/github-api/github-api/deployments",
+    "created_at": "2010-04-19T04:13:03Z",
+    "updated_at": "2020-02-01T02:00:03Z",
+    "pushed_at": "2020-02-02T04:40:57Z",
+    "git_url": "git://github.com/github-api/github-api.git",
+    "ssh_url": "git@github.com:github-api/github-api.git",
+    "clone_url": "https://github.com/github-api/github-api.git",
+    "svn_url": "https://github.com/github-api/github-api",
+    "homepage": "https://github-api.kohsuke.org/",
+    "size": 19341,
+    "stargazers_count": 607,
+    "watchers_count": 607,
+    "language": "Java",
+    "has_issues": true,
+    "has_projects": true,
+    "has_downloads": true,
+    "has_wiki": true,
+    "has_pages": true,
+    "forks_count": 450,
+    "mirror_url": null,
+    "archived": false,
+    "disabled": false,
+    "open_issues_count": 54,
+    "license": {
+      "key": "mit",
+      "name": "MIT License",
+      "spdx_id": "MIT",
+      "url": "https://api.github.com/licenses/mit",
+      "node_id": "MDc6TGljZW5zZTEz"
+    },
+    "forks": 450,
+    "open_issues": 54,
+    "watchers": 607,
+    "default_branch": "master"
+  },
+  "network_count": 450,
+  "subscribers_count": 0
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/repos_github-apit-test-ort_github-api_get_collaborators-5-ddaa82.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/repos_github-apit-test-ort_github-api_get_collaborators-5-ddaa82.json
new file mode 100644
index 0000000000..f543e9f7d9
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/repos_github-apit-test-ort_github-api_get_collaborators-5-ddaa82.json
@@ -0,0 +1,27 @@
+[
+  {
+    "login": "jimmysombrero",
+    "id": 12157727,
+    "node_id": "MDQ6VXNlcjEyMTU3NzI3",
+    "avatar_url": "https://avatars3.githubusercontent.com/u/12157727?v=4",
+    "gravatar_id": "",
+    "url": "https://api.github.com/users/jimmysombrero",
+    "html_url": "https://github.com/jimmysombrero",
+    "followers_url": "https://api.github.com/users/jimmysombrero/followers",
+    "following_url": "https://api.github.com/users/jimmysombrero/following{/other_user}",
+    "gists_url": "https://api.github.com/users/jimmysombrero/gists{/gist_id}",
+    "starred_url": "https://api.github.com/users/jimmysombrero/starred{/owner}{/repo}",
+    "subscriptions_url": "https://api.github.com/users/jimmysombrero/subscriptions",
+    "organizations_url": "https://api.github.com/users/jimmysombrero/orgs",
+    "repos_url": "https://api.github.com/users/jimmysombrero/repos",
+    "events_url": "https://api.github.com/users/jimmysombrero/events{/privacy}",
+    "received_events_url": "https://api.github.com/users/jimmysombrero/received_events",
+    "type": "User",
+    "site_admin": false,
+    "permissions": {
+      "push": true,
+      "pull": true,
+      "admin": false
+    }
+  }
+]
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/user-f20ea960-c1f4-440c-bdc1-a605956a351a.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/user-f20ea960-c1f4-440c-bdc1-a605956a351a.json
new file mode 100644
index 0000000000..59111e1a88
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/user-f20ea960-c1f4-440c-bdc1-a605956a351a.json
@@ -0,0 +1,45 @@
+{
+  "login": "jimmysombrero",
+  "id": 12157727,
+  "node_id": "MDQ6VXNlcjEyMTU3NzI3",
+  "avatar_url": "https://avatars3.githubusercontent.com/u/12157727?v=4",
+  "gravatar_id": "",
+  "url": "https://api.github.com/users/jimmysombrero",
+  "html_url": "https://github.com/jimmysombrero",
+  "followers_url": "https://api.github.com/users/jimmysombrero/followers",
+  "following_url": "https://api.github.com/users/jimmysombrero/following{/other_user}",
+  "gists_url": "https://api.github.com/users/jimmysombrero/gists{/gist_id}",
+  "starred_url": "https://api.github.com/users/jimmysombrero/starred{/owner}{/repo}",
+  "subscriptions_url": "https://api.github.com/users/jimmysombrero/subscriptions",
+  "organizations_url": "https://api.github.com/users/jimmysombrero/orgs",
+  "repos_url": "https://api.github.com/users/jimmysombrero/repos",
+  "events_url": "https://api.github.com/users/jimmysombrero/events{/privacy}",
+  "received_events_url": "https://api.github.com/users/jimmysombrero/received_events",
+  "type": "User",
+  "site_admin": false,
+  "name": null,
+  "company": null,
+  "blog": "",
+  "location": null,
+  "email": null,
+  "hireable": null,
+  "bio": null,
+  "public_repos": 4,
+  "public_gists": 0,
+  "followers": 1,
+  "following": 0,
+  "created_at": "2015-04-28T17:47:19Z",
+  "updated_at": "2020-02-02T04:43:58Z",
+  "private_gists": 0,
+  "total_private_repos": 0,
+  "owned_private_repos": 0,
+  "disk_usage": 19,
+  "collaborators": 0,
+  "two_factor_authentication": false,
+  "plan": {
+    "name": "free",
+    "space": 976562499,
+    "collaborators": 0,
+    "private_repos": 10000
+  }
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/users_jimmysombrero-6685376c-451b-486d-88cd-502af9a7c5d1.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/users_jimmysombrero-6685376c-451b-486d-88cd-502af9a7c5d1.json
new file mode 100644
index 0000000000..59111e1a88
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/__files/users_jimmysombrero-6685376c-451b-486d-88cd-502af9a7c5d1.json
@@ -0,0 +1,45 @@
+{
+  "login": "jimmysombrero",
+  "id": 12157727,
+  "node_id": "MDQ6VXNlcjEyMTU3NzI3",
+  "avatar_url": "https://avatars3.githubusercontent.com/u/12157727?v=4",
+  "gravatar_id": "",
+  "url": "https://api.github.com/users/jimmysombrero",
+  "html_url": "https://github.com/jimmysombrero",
+  "followers_url": "https://api.github.com/users/jimmysombrero/followers",
+  "following_url": "https://api.github.com/users/jimmysombrero/following{/other_user}",
+  "gists_url": "https://api.github.com/users/jimmysombrero/gists{/gist_id}",
+  "starred_url": "https://api.github.com/users/jimmysombrero/starred{/owner}{/repo}",
+  "subscriptions_url": "https://api.github.com/users/jimmysombrero/subscriptions",
+  "organizations_url": "https://api.github.com/users/jimmysombrero/orgs",
+  "repos_url": "https://api.github.com/users/jimmysombrero/repos",
+  "events_url": "https://api.github.com/users/jimmysombrero/events{/privacy}",
+  "received_events_url": "https://api.github.com/users/jimmysombrero/received_events",
+  "type": "User",
+  "site_admin": false,
+  "name": null,
+  "company": null,
+  "blog": "",
+  "location": null,
+  "email": null,
+  "hireable": null,
+  "bio": null,
+  "public_repos": 4,
+  "public_gists": 0,
+  "followers": 1,
+  "following": 0,
+  "created_at": "2015-04-28T17:47:19Z",
+  "updated_at": "2020-02-02T04:43:58Z",
+  "private_gists": 0,
+  "total_private_repos": 0,
+  "owned_private_repos": 0,
+  "disk_usage": 19,
+  "collaborators": 0,
+  "two_factor_authentication": false,
+  "plan": {
+    "name": "free",
+    "space": 976562499,
+    "collaborators": 0,
+    "private_repos": 10000
+  }
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/orgs_github-api-test-org-1-a3d2b5.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/orgs_github-api-test-org-1-a3d2b5.json
new file mode 100644
index 0000000000..fb36c75a05
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/orgs_github-api-test-org-1-a3d2b5.json
@@ -0,0 +1,45 @@
+{
+  "id": "a3d2b552-58b8-4028-b731-d00420496ca8",
+  "name": "orgs_github-api-test-org",
+  "request": {
+    "url": "/orgs/github-api-test-org",
+    "method": "GET",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    }
+  },
+  "response": {
+    "status": 200,
+    "bodyFileName": "orgs_github-api-test-org-a3d2b552-58b8-4028-b731-d00420496ca8.json",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Sun, 02 Feb 2020 04:59:39 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "200 OK",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4895",
+      "X-RateLimit-Reset": "1580620984",
+      "Cache-Control": "private, max-age=60, s-maxage=60",
+      "Vary": "Accept, Authorization, Cookie, X-GitHub-OTP",
+      "ETag": "W/\"7883ff712872fc993ac511231d8f8c6d\"",
+      "Last-Modified": "Mon, 20 Apr 2015 00:42:30 GMT",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "admin:org, read:org, repo, user, write:org",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "C903:768E:16C4938:2BA1171:5E36573B"
+    }
+  },
+  "uuid": "a3d2b552-58b8-4028-b731-d00420496ca8",
+  "persistent": true,
+  "insertionIndex": 1
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api-2-95ce40.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api-2-95ce40.json
new file mode 100644
index 0000000000..a27046c0af
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api-2-95ce40.json
@@ -0,0 +1,45 @@
+{
+  "id": "95ce4098-4e40-49f0-8661-0870614d5d78",
+  "name": "repos_github-api-test-org_github-api",
+  "request": {
+    "url": "/repos/github-api-test-org/github-api",
+    "method": "GET",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    }
+  },
+  "response": {
+    "status": 200,
+    "bodyFileName": "repos_github-api-test-org_github-api-95ce4098-4e40-49f0-8661-0870614d5d78.json",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Sun, 02 Feb 2020 04:59:39 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "200 OK",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4894",
+      "X-RateLimit-Reset": "1580620983",
+      "Cache-Control": "private, max-age=60, s-maxage=60",
+      "Vary": "Accept, Authorization, Cookie, X-GitHub-OTP",
+      "ETag": "W/\"d61f18a7ccc89231875444b59f56580f\"",
+      "Last-Modified": "Thu, 16 Jan 2020 21:22:56 GMT",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "repo",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "C903:768E:16C4945:2BA117B:5E36573B"
+    }
+  },
+  "uuid": "95ce4098-4e40-49f0-8661-0870614d5d78",
+  "persistent": true,
+  "insertionIndex": 2
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api_collaborators-5-ddaa82.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api_collaborators-5-ddaa82.json
new file mode 100644
index 0000000000..fe713cd60d
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api_collaborators-5-ddaa82.json
@@ -0,0 +1,41 @@
+{
+  "id": "ddaa8229-c0ae-4df6-90ed-08425bfe71f2",
+  "name": "repos_github-api-test-org_github-api_collaborators",
+  "request": {
+    "url": "/repos/github-api-test-org/github-api/collaborators",
+    "method": "GET",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    }
+  },
+  "response": {
+    "status": "200",
+    "bodyFileName": "repos_github-apit-test-ort_github-api_get_collaborators-5-ddaa82.json",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Mon, 03 Feb 2020 02:32:07 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "200 OK",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4979",
+      "X-RateLimit-Reset": "1580700723",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "CBB1:43C6:FBCD05:26D0ED5:5E378627"
+    }
+  },
+  "uuid": "ddaa8229-c0ae-4df6-90ed-08425bfe71f2",
+  "persistent": true,
+  "insertionIndex": 5
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api_collaborators_jimmysombrero-4-3d80b1.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api_collaborators_jimmysombrero-4-3d80b1.json
new file mode 100644
index 0000000000..515c252094
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/repos_github-api-test-org_github-api_collaborators_jimmysombrero-4-3d80b1.json
@@ -0,0 +1,48 @@
+{
+  "id": "3d80b19e-05f4-4ad9-a610-5f573abc4363",
+  "name": "repos_github-api-test-org_github-api_collaborators_jimmysombrero",
+  "request": {
+    "url": "/repos/github-api-test-org/github-api/collaborators/jimmysombrero",
+    "method": "PUT",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    },
+    "bodyPatterns": [
+      {
+        "equalToJson": "{\"permission\":\"push\"}",
+        "ignoreArrayOrder": true,
+        "ignoreExtraElements": true
+      }
+    ]
+  },
+  "response": {
+    "status": 201,
+    "body": "[]",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Sun, 02 Feb 2020 04:59:39 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "201 Created",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4892",
+      "X-RateLimit-Reset": "1580620983",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "C903:768E:16C4966:2BA11B0:5E36573B"
+    }
+  },
+  "uuid": "3d80b19e-05f4-4ad9-a610-5f573abc4363",
+  "persistent": true,
+  "insertionIndex": 4
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/user-3-f20ea9.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/user-3-f20ea9.json
new file mode 100644
index 0000000000..bd001a05da
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/user-3-f20ea9.json
@@ -0,0 +1,45 @@
+{
+  "id": "f20ea960-c1f4-440c-bdc1-a605956a351a",
+  "name": "user",
+  "request": {
+    "url": "/user",
+    "method": "GET",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    }
+  },
+  "response": {
+    "status": 200,
+    "bodyFileName": "user-f20ea960-c1f4-440c-bdc1-a605956a351a.json",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Sun, 02 Feb 2020 04:59:39 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "200 OK",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4893",
+      "X-RateLimit-Reset": "1580620983",
+      "Cache-Control": "private, max-age=60, s-maxage=60",
+      "Vary": "Accept, Authorization, Cookie, X-GitHub-OTP",
+      "ETag": "W/\"7a0206b47e995649c88218afeb2266a6\"",
+      "Last-Modified": "Sun, 02 Feb 2020 04:43:58 GMT",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "C903:768E:16C495A:2BA119D:5E36573B"
+    }
+  },
+  "uuid": "f20ea960-c1f4-440c-bdc1-a605956a351a",
+  "persistent": true,
+  "insertionIndex": 3
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/users_jimmysombrero-6-668537.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/users_jimmysombrero-6-668537.json
new file mode 100644
index 0000000000..fcb4c6b398
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/addCollaborators/mappings/users_jimmysombrero-6-668537.json
@@ -0,0 +1,45 @@
+{
+  "id": "6685376c-451b-486d-88cd-502af9a7c5d1",
+  "name": "users_jimmysombrero",
+  "request": {
+    "url": "/users/jimmysombrero",
+    "method": "GET",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    }
+  },
+  "response": {
+    "status": 200,
+    "bodyFileName": "users_jimmysombrero-6685376c-451b-486d-88cd-502af9a7c5d1.json",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Mon, 03 Feb 2020 03:50:14 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "200 OK",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4907",
+      "X-RateLimit-Reset": "1580704799",
+      "Cache-Control": "private, max-age=60, s-maxage=60",
+      "Vary": "Accept, Authorization, Cookie, X-GitHub-OTP",
+      "ETag": "W/\"7a0206b47e995649c88218afeb2266a6\"",
+      "Last-Modified": "Sun, 02 Feb 2020 04:43:58 GMT",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "CDFE:768D:1021273:26DC788:5E379876"
+    }
+  },
+  "uuid": "6685376c-451b-486d-88cd-502af9a7c5d1",
+  "persistent": true,
+  "insertionIndex": 6
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/checkWatchersCount/__files/user-0f326a28-7b63-4439-b05b-645236cafd19.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/checkWatchersCount/__files/user-0f326a28-7b63-4439-b05b-645236cafd19.json
new file mode 100644
index 0000000000..c01fae6620
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/checkWatchersCount/__files/user-0f326a28-7b63-4439-b05b-645236cafd19.json
@@ -0,0 +1,45 @@
+{
+  "login": "jimmysombrero",
+  "id": 12157727,
+  "node_id": "MDQ6VXNlcjEyMTU3NzI3",
+  "avatar_url": "https://avatars3.githubusercontent.com/u/12157727?v=4",
+  "gravatar_id": "",
+  "url": "https://api.github.com/users/jimmysombrero",
+  "html_url": "https://github.com/jimmysombrero",
+  "followers_url": "https://api.github.com/users/jimmysombrero/followers",
+  "following_url": "https://api.github.com/users/jimmysombrero/following{/other_user}",
+  "gists_url": "https://api.github.com/users/jimmysombrero/gists{/gist_id}",
+  "starred_url": "https://api.github.com/users/jimmysombrero/starred{/owner}{/repo}",
+  "subscriptions_url": "https://api.github.com/users/jimmysombrero/subscriptions",
+  "organizations_url": "https://api.github.com/users/jimmysombrero/orgs",
+  "repos_url": "https://api.github.com/users/jimmysombrero/repos",
+  "events_url": "https://api.github.com/users/jimmysombrero/events{/privacy}",
+  "received_events_url": "https://api.github.com/users/jimmysombrero/received_events",
+  "type": "User",
+  "site_admin": false,
+  "name": null,
+  "company": null,
+  "blog": "",
+  "location": null,
+  "email": null,
+  "hireable": null,
+  "bio": null,
+  "public_repos": 4,
+  "public_gists": 0,
+  "followers": 1,
+  "following": 0,
+  "created_at": "2015-04-28T17:47:19Z",
+  "updated_at": "2020-02-02T04:15:35Z",
+  "private_gists": 0,
+  "total_private_repos": 0,
+  "owned_private_repos": 0,
+  "disk_usage": 19,
+  "collaborators": 0,
+  "two_factor_authentication": false,
+  "plan": {
+    "name": "free",
+    "space": 976562499,
+    "collaborators": 0,
+    "private_repos": 10000
+  }
+}
\ No newline at end of file
diff --git a/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/checkWatchersCount/mappings/user-3-0f326a.json b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/checkWatchersCount/mappings/user-3-0f326a.json
new file mode 100644
index 0000000000..93fb07e81f
--- /dev/null
+++ b/src/test/resources/org/kohsuke/github/GHRepositoryTest/wiremock/checkWatchersCount/mappings/user-3-0f326a.json
@@ -0,0 +1,45 @@
+{
+  "id": "0f326a28-7b63-4439-b05b-645236cafd19",
+  "name": "user",
+  "request": {
+    "url": "/user",
+    "method": "GET",
+    "headers": {
+      "Accept": {
+        "equalTo": "text/html, image/gif, image/jpeg, *; q=.2, */*; q=.2"
+      }
+    }
+  },
+  "response": {
+    "status": 200,
+    "bodyFileName": "user-0f326a28-7b63-4439-b05b-645236cafd19.json",
+    "headers": {
+      "Server": "GitHub.com",
+      "Date": "Sun, 02 Feb 2020 04:29:51 GMT",
+      "Content-Type": "application/json; charset=utf-8",
+      "Status": "200 OK",
+      "X-RateLimit-Limit": "5000",
+      "X-RateLimit-Remaining": "4922",
+      "X-RateLimit-Reset": "1580620984",
+      "Cache-Control": "private, max-age=60, s-maxage=60",
+      "Vary": "Accept, Authorization, Cookie, X-GitHub-OTP",
+      "ETag": "W/\"275d33915a65ed3fa77d5fed34147440\"",
+      "Last-Modified": "Sun, 02 Feb 2020 04:15:35 GMT",
+      "X-OAuth-Scopes": "admin:enterprise, admin:gpg_key, admin:org, admin:org_hook, admin:public_key, admin:repo_hook, delete:packages, delete_repo, gist, notifications, read:packages, repo, user, workflow, write:discussion, write:packages",
+      "X-Accepted-OAuth-Scopes": "",
+      "X-GitHub-Media-Type": "unknown, github.v3",
+      "Access-Control-Expose-Headers": "ETag, Link, Location, Retry-After, X-GitHub-OTP, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset, X-OAuth-Scopes, X-Accepted-OAuth-Scopes, X-Poll-Interval, X-GitHub-Media-Type",
+      "Access-Control-Allow-Origin": "*",
+      "Strict-Transport-Security": "max-age=31536000; includeSubdomains; preload",
+      "X-Frame-Options": "deny",
+      "X-Content-Type-Options": "nosniff",
+      "X-XSS-Protection": "1; mode=block",
+      "Referrer-Policy": "origin-when-cross-origin, strict-origin-when-cross-origin",
+      "Content-Security-Policy": "default-src 'none'",
+      "X-GitHub-Request-Id": "C819:07AB:4E26A4:A432C4:5E36503F"
+    }
+  },
+  "uuid": "0f326a28-7b63-4439-b05b-645236cafd19",
+  "persistent": true,
+  "insertionIndex": 3
+}
\ No newline at end of file