[xwiki-users] Failure to use custom Job

Hello, I'm trying to use the Job Module [1] for my own needs. I know some of its APIs are marked as unstable, but well I wanted to give it a try. I'm on a XWiki 4.5.2 instance currently. So I created some dummy interface: @Role public interface ILoadingJob extends Job { } A Job implementation: @Component @Named(LoadingJob.JOBTYPE) public class LoadingJob extends AbstractJob<DefaultRequest> implements ILoadingJob, Initializable { public static final String JOBTYPE = "mailarchivejob"; // ... } In debug mode, I run the following: this.componentManager.getComponentDescriptorList(org.xwiki.job.Job.class) It returns: [implementation = [org.xwiki.contrib.mailarchive.internal.LoadingJob], instantiation = [PER_LOOKUP], implementation = [org.xwiki.extension.job.internal.UpgradePlanJob], ... ] So it seems OK. I have the following code to create and execute my Job: DefaultRequest request = new DefaultRequest(); request.setId("test"); request.setInteractive(false); // ... other properties set LoadingJob job = (LoadingJob) jobManager.executeJob("mailarchivejob", request); But this code fails with following stack trace: org.xwiki.job.JobException: Failed to lookup any Job for role hint [mailarchivejob] at org.xwiki.job.internal.DefaultJobManager.createJob(DefaultJobManager.java:185) at org.xwiki.job.internal.DefaultJobManager.addJob(DefaultJobManager.java:208) at org.xwiki.job.internal.DefaultJobManager.executeJob(DefaultJobManager.java:194) at org.xwiki.contrib.mailarchive.internal.MailArchiveScriptService.createLoadingJob(MailArchiveScriptService.java:112) at org.xwiki.contrib.mailarchive.internal.MailArchiveScriptService.load(MailArchiveScriptService.java:94) [...] Caused by: org.xwiki.component.manager.ComponentLookupException: Can't find descriptor for the component [role = [interface org.xwiki.job.Job] hint = [mailarchivejob]] at org.xwiki.component.embed.EmbeddableComponentManager.getComponentInstance(EmbeddableComponentManager.java:355) at org.xwiki.component.embed.EmbeddableComponentManager.getInstance(EmbeddableComponentManager.java:161) at org.xwiki.job.internal.DefaultJobManager.createJob(DefaultJobManager.java:183) [...] I also tried to manually register my custom Job component, in the initialize() of a side component (I checked that this code got executed previously to job creation), but with no different result: // Register custom job this.componentManager.registerComponent(this.componentManager.getComponentDescriptor(Job.class, "mailarchivejob")); Do you see something wrong in my approach ? Thanks, Jeremie