JBoss Scheduler

<mbean code="org.jboss.varia.scheduler.Scheduler" name=":service=Scheduler">
  <attribute name="StartAtStartup">true</attribute>
  <attribute name="SchedulableClass">expireDocuments.ExpireDocuments</attribute>
  <attribute name="InitialStartDate">0</attribute>
  <attribute name="SchedulePeriod">20000</attribute>
  <attribute name="InitialRepetitions">-1</attribute>
  <attribute name="FixedRate">true</attribute>
</mbean>