[JENKINS-74741] Migrate from FromApply#applyResponse in ScriptlerBuilder.java

Author: yaroslavafenkin

pom.xml

@@ -29,7 +29,9 @@
     <spotless.check.skip>false</spotless.check.skip>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
     <jenkins.baseline>2.479</jenkins.baseline>
-    <jenkins.version>${jenkins.baseline}.1</jenkins.version>
+    <!-- TODO: switch back to the LTS baseline once the CSP fix is in LTS -->
+    <!--<jenkins.version>${jenkins.baseline}.1</jenkins.version>-->
+    <jenkins.version>2.482</jenkins.version>
   </properties>
 
   <dependencyManagement>

src/main/java/org/jenkinsci/plugins/scriptler/builder/ScriptlerBuilder.java

@@ -437,11 +437,10 @@ private Stream<String> buildMessages() {
         public void generateResponse(StaplerRequest2 req, StaplerResponse2 rsp, Object node)
                 throws IOException, ServletException {
             if (FormApply.isApply(req)) {
-                String script = buildMessages()
-                        .map(QuotedStringTokenizer::quote)
-                        .map(error -> "notificationBar.show(" + error + ",notificationBar.ERROR)")
-                        .collect(Collectors.joining(""));
-                FormApply.applyResponse(script).generateResponse(req, rsp, node);
+                String script =
+                        buildMessages().map(QuotedStringTokenizer::quote).collect(Collectors.joining(""));
+                FormApply.showNotification(script, FormApply.NotificationType.ERROR)
+                        .generateResponse(req, rsp, node);
             } else {
                 new Failure(getAggregatedMessage()).generateResponse(req, rsp, node);
             }