Merge pull request #4004 from SDA-SE/feat/possible-jenkins-fix

Handle missing values in Jenkins API requests

.changeset/friendly-rats-wonder.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-jenkins': patch
+---
+
+Handle missing ObjectMetadataAction in Jenkins API

plugins/jenkins/src/api/JenkinsApi.ts

@@ -63,7 +63,7 @@ export class JenkinsApi {
     return lastBuild;
   }
 
-  extractScmDetailsFromJob(jobDetails: any): any {
+  extractScmDetailsFromJob(jobDetails: any): any | undefined {
     const scmInfo = jobDetails.actions
       .filter(
         (action: any) =>
@@ -79,6 +79,10 @@ export class JenkinsApi {
       })
       .pop();
 
+    if (!scmInfo) {
+      return undefined;
+    }
+
     const author = jobDetails.actions
       .filter(
         (action: any) =>
@@ -141,7 +145,7 @@ export class JenkinsApi {
 
     for (const jobDetails of folder.jobs) {
       const jobScmInfo = this.extractScmDetailsFromJob(jobDetails);
-      if (jobDetails.jobs) {
+      if (jobDetails?.jobs) {
         // skipping folders inside folders for now
       } else {
         for (const buildDetails of jobDetails.builds) {