Use SuppressRestrictedWarnings

Author: daniel-beck

pom.xml

@@ -38,8 +38,6 @@
     <!-- TODO https://github.com/jenkinsci/jenkins/pull/11269 -->
     <jenkins.version>2.537-rc37714.d5718019b_8ff</jenkins.version>
     <spotless.check.skip>false</spotless.check.skip>
-    <!-- AvatarContributor in GitHubOrgMetadataAction; SuppressRestrictedWarnings doesn't work -->
-    <useBeta>true</useBeta>
   </properties>
 
   <dependencyManagement>
@@ -91,6 +89,12 @@
       <groupId>org.jenkins-ci.plugins.workflow</groupId>
       <artifactId>workflow-support</artifactId>
     </dependency>
+    <dependency>
+      <groupId>org.kohsuke</groupId>
+      <artifactId>access-modifier-suppressions</artifactId>
+      <version>1.35</version>
+      <scope>provided</scope>
+    </dependency>
     <dependency>
       <groupId>io.jenkins</groupId>
       <artifactId>configuration-as-code</artifactId>

src/main/java/org/jenkinsci/plugins/github_branch_source/GitHubOrgMetadataAction.java

@@ -34,6 +34,7 @@
 import jenkins.scm.api.metadata.AvatarMetadataAction;
 import jenkins.security.csp.AvatarContributor;
 import org.apache.commons.lang3.StringUtils;
+import org.kohsuke.accmod.restrictions.suppressions.SuppressRestrictedWarnings;
 import org.kohsuke.github.GHUser;
 import org.kohsuke.stapler.Stapler;
 
@@ -43,6 +44,7 @@
  *
  * @author Kohsuke Kawaguchi
  */
+@SuppressRestrictedWarnings(AvatarContributor.class)
 public class GitHubOrgMetadataAction extends AvatarMetadataAction {
     @CheckForNull
     private final String avatar;