How to use

findItemFromRequest

method

in

org.jenkinsci.plugins.workflow.util.StaplerReferer

public Collection<? extends SCMDescriptor<?>> getApplicableDescriptors() {
  return SCM._for(StaplerReferer.findItemFromRequest(Job.class));
}

@Restricted(DoNotUse.class) // for use from config.jelly
public String getContext() {
  Job<?,?> job = StaplerReferer.findItemFromRequest(Job.class);
  return job != null ? job.getFullName() : null;
}

if (params != null) {
  Jenkins jenkins = Jenkins.getInstance();
  Job<?,?> context = StaplerReferer.findItemFromRequest(Job.class);
  Job<?,?> job = jenkins != null ? jenkins.getItem(step.getJob(), context, Job.class) : null;
  if (job != null) {