QuartzTest.scala

import org.quartz
import org.quartz._

class ScalaJob extends Job {
  def execute(ctx: JobExecutionContext): Unit = {
    ctx.getMergedJobDataMap.get("closure").asInstanceOf[JobExecutionContext => Unit].apply(ctx)
  }
}

object QuartzTest {
  implicit def f2ScalaJob(f: JobExecutionContext => Unit): JobDetail = {
    val job = new JobDetail("stuff", "group", classOf[ScalaJob])
    job.getJobDataMap.put("closure", f)
    job
  }

  def main(args: Array[String]) {
    val sched = quartz.impl.StdSchedulerFactory.getDefaultScheduler
    sched.start
    sched.scheduleJob((ctx: JobExecutionContext) => println("Hello World"), new SimpleTrigger("t", "g", new java.util.Date))
    Thread.sleep(5000);
  }
}