The ping pong workflow

pingpong.xml

<?xml version="1.0" encoding="UTF-8"?>
<job
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns="urn:proactive:jobdescriptor:3.10"
     xsi:schemaLocation="urn:proactive:jobdescriptor:3.10 http://www.activeeon.com/public_content/schemas/proactive/jobdescriptor/3.10/schedulerjob.xsd"
    name="EscapeDeath" projectName="Epoch${COUNTER}"
    priority="normal"
    onTaskError="continueJobExecution"
     maxNumberOfExecution="2"
>
  <variables>
    <variable name="COUNTER" value="0" />
  </variables>
  <genericInformation>
    <info name="bucketName" value="paraita"/>
    <info name="pca.action.icon" value="/automation-dashboard/styles/patterns/img/wf-icons/controls_submit_job_no_wait.png"/>
    <info name="group" value="public-objects"/>
  </genericInformation>
  <taskFlow>
    <task name="SubmitJobNoWait">
      <description>
        <![CDATA[ The simplest task, ran by a groovy engine. ]]>
      </description>
      <variables>
        <variable name="workflowURL" value="http://try.activeeon.com:8080/workflow-catalog/buckets/1/workflows/4?alt=xml" inherited="false" model="String"/>
      </variables>
      <genericInformation>
        <info name="TASK.ICON" value="/automation-dashboard/styles/patterns/img/wf-icons/controls_submit_job_no_wait.png"/>
      </genericInformation>
      <scriptExecutable>
        <script>
          <code language="groovy">
            <![CDATA[
// connect to the scheduler
schedulerapi.connect()

// get the job URL from Task Variables
jobURL = new URL("https://gist.githubusercontent.com/paraita/5033b4baf1173d73180947379e5d80f7/raw/6e6e1830a287584c70078ae25b45a1818056c684/pingpong.xml")

counter = variables.get("COUNTER").toInteger() + 1

variables = ["COUNTER": Integer.toString(counter)]

// add sessionId to request header map
requestHeader = Collections.singletonMap("sessionId", schedulerapi.getSession())

// submitting the job
jobid = schedulerapi.submit(jobURL, variables, requestHeader)
]]>
          </code>
        </script>
      </scriptExecutable>
    </task>
  </taskFlow>
</job>