[JENKINS-64503] Could not find or load main class h6296654658095391056.groovy-3.0.7.lib.groovy.icns

[jenkins-infra-bot]

When the following mavenJob is executed as job 

mavenJob('check-bom-dependencies') {
    description 'Maven Job checking the BOM dependencies of the Spring Boot project'

    ... 
    preBuildSteps {
    groovyCommand(readFileFromWorkspace('backupPOM.groovy')) {
groovyInstallation('groovy-3.0.7')
      }
    }

then we got the following error

[check-bom-dependencies] $ "/var/folders/t2/jwchtqkn5y76hrfrws7dqtqm0000gn/T/j h6296654658095391056/groovy-3.0.7/bin/groovy" "/var/folders/t2/jwchtqkn5y76hrfrws7dqtqm0000gn/T/j h6296654658095391056/workspace/check-bom-dependencies/hudson5004440412061931297.groovy"
Error: Could not find or load main class h6296654658095391056.groovy-3.0.7.lib.groovy.icns
Build step 'Execute Groovy script' marked build as failure

using jenkins 2.271 (where jenkins is launched using jenkinsrule) with the following code to install groovy

public class MavenCheckBOMJobDSLTest {
    @​Rule
    public JenkinsRule j = new JenkinsRule();

    String seedJobName = "maven-seed-job";

    @​Before
    // Install Groovy to the Jenkins Global Configuration Tools as it is needed by the mavenJob
    // As no utility class exists to fetch groovy, then we will deploy it from a local resource zip file
    public void setUpGroovy() throws Exception {
FilePath home = j.jenkins.getRootPath();
home.unzipFrom(MavenCheckBOMJobDSLTest.class.getResourceAsStream("/groovy-binary-3.0.7.zip"));
j.jenkins.getDescriptorByType(GroovyInstallation.DescriptorImpl.class).setInstallations(new GroovyInstallation("groovy-3.0.7", home.child("groovy-3.0.7").getRemote(), null));
    }

---

Originally reported by cmoulliard, imported from: Could not find or load main class h6296654658095391056.groovy-3.0.7.lib.groovy.icns

• assignee: vjuranek
• status: Open
• priority: Minor
• component(s): groovy-plugin
• resolution: Unresolved
• votes: 0
• watchers: 1
• imported: 20260604-161841

Raw content of original issue

When the following mavenJob is executed as job 

mavenJob('check-bom-dependencies') {
    description 'Maven Job checking the BOM dependencies of the Spring Boot project'

    ... 
    preBuildSteps {
            groovyCommand(readFileFromWorkspace('backupPOM.groovy')) {
                groovyInstallation('groovy-3.0.7')
              }
    }

then we got the following error

[check-bom-dependencies] $ "/var/folders/t2/jwchtqkn5y76hrfrws7dqtqm0000gn/T/j h6296654658095391056/groovy-3.0.7/bin/groovy" "/var/folders/t2/jwchtqkn5y76hrfrws7dqtqm0000gn/T/j h6296654658095391056/workspace/check-bom-dependencies/hudson5004440412061931297.groovy"
Error: Could not find or load main class h6296654658095391056.groovy-3.0.7.lib.groovy.icns
Build step 'Execute Groovy script' marked build as failure

using jenkins 2.271 (where jenkins is launched using jenkinsrule) with the following code to install groovy

public class MavenCheckBOMJobDSLTest {
    @Rule
    public JenkinsRule j = new JenkinsRule();
<span class="code-object">String</span> seedJobName = <span class="code-quote">"maven-seed-job"</span>;

@Before
<span class="code-comment">// Install Groovy to the Jenkins Global Configuration Tools as it is needed by the mavenJob

    // As no utility class exists to fetch groovy, then we will deploy it from a local resource zip file

    public void setUpGroovy() throws Exception {

FilePath home = j.jenkins.getRootPath();

home.unzipFrom(MavenCheckBOMJobDSLTest.class.getResourceAsStream("/groovy-binary-3.0.7.zip"));

j.jenkins.getDescriptorByType(GroovyInstallation.DescriptorImpl.class).setInstallations(new GroovyInstallation("groovy-3.0.7", home.child("groovy-3.0.7").getRemote(), null));

}