[Mule] Create JSON with Groovy from a payload Mule

payload.groovy

<scripting:component doc:name="Groovy">
    <scripting:script engine="Groovy"><![CDATA[
    	 	def list = [];
    	 	def issue = [:];
    	 	for(i = 0 ; i < payload.size(); i++){
          	issue.id = 'arizona.jobdone.processo.' + payload[i].JOB_ID + '-' + payload[i].PROCESS_ID;
       			issue.key = 'arizona.jobdone.processo.' + payload[i].JOB_ID + '-' + payload[i].PROCESS_ID;
       			issue.fields = [:];
       			issue.fields.summary =	payload[i].JOB_ID + '|' + payload[i].PROCESS_ID + '| Desd.3 |' + payload[i].CLIENTE + '|' + payload[i].AGENCIA + '| capas | PRINT |' + payload[i].PROCESS_NAME
       			issue.fields.project = [:];
       			issue.fields.project.id = '1';
       			issue.fields.project.key = 'VSTC';
       			issue.fields.project.name = 'Time Central - JobDone';
       			
       			list.add(issue);
                }
    
		def root = [:];
		root.expand = 'schema,names';
      	 	root.startAt = 0;
      	 	root.maxResults = 500
      	 	root.total= 7
      	 	root.issues =[:];
      	 	root.issues = list
    	 		def jsonContent = new groovy.json.JsonBuilder(root);
    	 		println 'JSON COMPLETE : ' +jsonContent.toString() 
		return jsonContent.toPrettyString();
	]]></scripting:script>
</scripting:component>


<!-- RESULT -->


{
  expand: "schema,names",
  startAt: 0,
  maxResults: 500,
  total: 7,
  issues: 
  [
    {
      id: "arizona.jobdone.processo.34076-19",
      key: "arizona.jobdone.processo.34076-19",
      fields: {
        summary: "34076|19| Desd.3 |BOTICARIO|ALMAP| capas | PRINT |Expedição",
        project: {
          id: "1",
          key: "VSTC",
          name: "Time Central - JobDone"
        }
      }
    },
    {
      id: "arizona.jobdone.processo.34076-19",
      key: "arizona.jobdone.processo.34076-19",
      fields: {
        summary: "34076|19| Desd.3 |BOTICARIO|ALMAP| capas | PRINT |Expedição",
        project: {
          id: "1",
          key: "VSTC",
          name: "Time Central - JobDone"
        }
      }
    }
  ]
}