[JENKINS-644418] Add exponential backoff to BitBucket rate limit retr…

…y loop

Configure Apache HTTP client to use an exponential backoff retry strategy

.gitignore

@@ -17,3 +17,4 @@ work
 
 # VSCode
 .factorypath
+META-INF/

src/main/java/com/cloudbees/jenkins/plugins/bitbucket/BitbucketBuildStatusNotifications.java

@@ -172,7 +172,7 @@ private static void createStatus(@NonNull Run<?, ?> build, @NonNull TaskListener
 
     private static @CheckForNull BitbucketSCMSource findBitbucketSCMSource(Run<?, ?> build) {
         SCMSource s = SCMSource.SourceByItem.findSource(build.getParent());
-        return s instanceof BitbucketSCMSource ? (BitbucketSCMSource) s : null;
+        return s instanceof BitbucketSCMSource scm ? scm : null;
     }
 
     private static void sendNotifications(BitbucketSCMSource source, Run<?, ?> build, TaskListener listener)
@@ -211,12 +211,11 @@ private static void sendNotifications(BitbucketSCMSource source, Run<?, ?> build
 
     @CheckForNull
     private static String getHash(@CheckForNull SCMRevision revision) {
-        if (revision instanceof PullRequestSCMRevision) {
-            // unwrap
-            revision = ((PullRequestSCMRevision) revision).getPull();
+        if (revision instanceof PullRequestSCMRevision prRevision) {
+            revision = prRevision.getPull();
         }
-        if (revision instanceof AbstractGitSCMSource.SCMRevisionImpl) {
-            return ((AbstractGitSCMSource.SCMRevisionImpl) revision).getHash();
+        if (revision instanceof AbstractGitSCMSource.SCMRevisionImpl scmRevision) {
+            return scmRevision.getHash();
         }
         return null;
     }

src/main/java/com/cloudbees/jenkins/plugins/bitbucket/BitbucketSCMSource.java

@@ -1002,15 +1002,15 @@ private BitbucketCommit findPRDestinationCommit(BitbucketPullRequest pr, TaskLis
     public SCM build(SCMHead head, SCMRevision revision) {
         initCloneLinks();
 
+        boolean sshAuth = traits.stream()
+                .anyMatch(SSHCheckoutTrait.class::isInstance);
         String scmCredentialsId = credentialsId;
 
         BitbucketAuthenticator authenticator = authenticator();
         GitSCMExtension scmExtension;
         if (authenticator != null) {
             // workaround to force git-plugin to use the configured username/password credentialsId as is
             // remove this workaround as https://github.com/jenkinsci/bitbucket-branch-source-plugin/pull/867 will be merged
-            boolean sshAuth = traits.stream()
-                    .anyMatch(SSHCheckoutTrait.class::isInstance);
             if (sshAuth) {
                 // trait will do the magic
                 scmCredentialsId = null;
@@ -1027,8 +1027,8 @@ public SCM build(SCMHead head, SCMRevision revision) {
             scmExtension = new GitClientAuthenticatorExtension(null);
         }
 
-        return new BitbucketGitSCMBuilder(this, head, revision, scmCredentialsId)
-                .withExtension(scmExtension)
+        return new BitbucketGitSCMBuilder(this, head, revision, null)
+                .withExtension(new GitClientAuthenticatorExtension(authenticator == null || sshAuth ? null : authenticator.getCredentialsForSCM()))
                 .withCloneLinks(primaryCloneLinks, mirrorCloneLinks)
                 .withTraits(traits)
                 .build();

src/main/java/com/cloudbees/jenkins/plugins/bitbucket/api/BitbucketBuildStatus.java

@@ -24,6 +24,7 @@
 package com.cloudbees.jenkins.plugins.bitbucket.api;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
+import edu.umd.cs.findbugs.annotations.NonNull;
 import org.apache.commons.codec.digest.DigestUtils;
 import org.kohsuke.accmod.Restricted;
 import org.kohsuke.accmod.restrictions.DoNotUse;
@@ -99,6 +100,20 @@ public BitbucketBuildStatus(String hash, String description, Status state, Strin
         this.name = name;
     }
 
+    /**
+     * Copy constructor.
+     * 
+     * @param other from copy to.
+     */
+    public BitbucketBuildStatus(@NonNull BitbucketBuildStatus other) {
+        this.hash = other.hash;
+        this.description = other.description;
+        this.state = other.state;
+        this.url = other.url;
+        this.key = other.key;
+        this.name = other.name;
+    }
+
     public String getHash() {
         return hash;
     }