Merge pull request #8 from jglick/sleep-info-JENKINS-34281

[JENKINS-34281] Indicate if we are still sleeping after a resume

src/main/java/org/jenkinsci/plugins/workflow/steps/SleepStep.java

@@ -26,6 +26,8 @@

import com.google.inject.Inject;
import hudson.Extension;
import hudson.Util;
import hudson.model.TaskListener;
import hudson.util.ListBoxModel;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.TimeUnit;
@@ -60,6 +62,7 @@ public TimeUnit getUnit() {
        private static final long serialVersionUID = 1L;

        @Inject(optional=true) private transient SleepStep step;
        @StepContextParameter private transient TaskListener listener;
        private long end;
        private transient volatile ScheduledFuture<?> task;

@@ -72,12 +75,14 @@ public TimeUnit getUnit() {

        private void setupTimer(long now) {
            if (end > now) {
                listener.getLogger().println("Sleeping for " + Util.getTimeSpanString(end - now));
                task = Timer.get().schedule(new Runnable() {
                    @Override public void run() {
                        getContext().onSuccess(null);
                    }
                }, end - now, TimeUnit.MILLISECONDS);
            } else {
                listener.getLogger().println("No need to sleep any longer");
                getContext().onSuccess(null);
            }
        }