Migrate from EE 8 to EE 9 (#788)

Author: basil

empty-plugin/src/main/resources/archetype-resources/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>4.88</version>
+    <version>5.9</version>
     <relativePath />
   </parent>
 
@@ -35,8 +35,8 @@
     <revision>1.0</revision>
     <changelist>-SNAPSHOT</changelist>
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
-    <jenkins.baseline>2.452</jenkins.baseline>
-    <jenkins.version>${jenkins.baseline}.4</jenkins.version>
+    <jenkins.baseline>2.479</jenkins.baseline>
+    <jenkins.version>${jenkins.baseline}.3</jenkins.version>
 #if( $hostOnJenkinsGitHub == "true" )
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
 #end

global-configuration/src/main/resources/archetype-resources/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>5.5</version>
+    <version>5.9</version>
     <relativePath />
   </parent>
 

hello-world/src/main/resources/archetype-resources/pom.xml

@@ -5,7 +5,7 @@
   <parent>
     <groupId>org.jenkins-ci.plugins</groupId>
     <artifactId>plugin</artifactId>
-    <version>4.88</version>
+    <version>5.9</version>
     <relativePath />
   </parent>
 
@@ -36,8 +36,8 @@
     <changelist>-SNAPSHOT</changelist>
 
     <!-- https://www.jenkins.io/doc/developer/plugin-development/choosing-jenkins-baseline/ -->
-    <jenkins.baseline>2.452</jenkins.baseline>
-    <jenkins.version>${jenkins.baseline}.4</jenkins.version>
+    <jenkins.baseline>2.479</jenkins.baseline>
+    <jenkins.version>${jenkins.baseline}.3</jenkins.version>
 #if( $hostOnJenkinsGitHub == "true" )
     <gitHubRepo>jenkinsci/${project.artifactId}-plugin</gitHubRepo>
 #end

hello-world/src/main/resources/archetype-resources/src/main/java/HelloWorldBuilder.java

@@ -10,8 +10,8 @@
 import hudson.tasks.BuildStepDescriptor;
 import hudson.tasks.Builder;
 import hudson.util.FormValidation;
+import jakarta.servlet.ServletException;
 import java.io.IOException;
-import javax.servlet.ServletException;
 import jenkins.tasks.SimpleBuildStep;
 import org.jenkinsci.Symbol;
 import org.kohsuke.stapler.DataBoundConstructor;