Welcome the player to the casino

scriptTask.xml

<bpmn2:scriptTask id="scriptTask" name="Welcome Message" scriptFormat="groovy">
  <bpmn2:extensionElements>
    <camunda:inputOutput>
      <camunda:inputParameter name="player">

        <!-- script as input parameter -->
        <camunda:script scriptFormat="groovy">
          players = ["Fritz", "Heinz", "Horst", "Klaus"]
          players[new Random().nextInt(players.size())]
        </camunda:script>

      </camunda:inputParameter>
    </camunda:inputOutput>
  </bpmn2:extensionElements>

  <!-- script as script task -->
  <bpmn2:script>
    println "Hello $player! Welcome to our casino"
  </bpmn2:script>
</bpmn2:scriptTask>