Multiple nodes generation problem in 2.5 pro

While creating nodes at run time in 2.5 pro, it's not generating nodes properly. While it's working fine in 2.0.
e.g.

 

 
   
      getPromotionIdRequest<
      <dp_promotion_id>12345</dp_promotion_id>
      </getPromotionIdRequest>
      getPromotionIdRequest&lt;
      <dp_promotion_id>12345</dp_promotion_id>
      </getPromotionIdRequest>
   
 


While in 2.0 I am getting properly like below:

 

 
   
     
      12345
     
     
      12345
     
   
 



The data setup is like below for both 2.0 and 2.5 pro:
groovyUtilsRequest = new com.eviware.soapui.support.GroovyUtils( context )
holder = groovyUtilsRequest.getXmlHolder("Request#Request");
StringWriter writer = new java.io.StringWriter();
def printer  = new groovy.util.XmlNodePrinter(new PrintWriter(writer))
holder = groovyUtilsRequest.getXmlHolder("Request#Request");
def req = testRunner.testCase.getTestStepByName("Request")
def reqProperty = req.getProperty("Request")
def node =  new groovy.util.XmlParser(false,false).parseText(reqProperty.value)
//def textNode1 = node["soapenv:Body"]["get:getPromotionIdRequest"]["getPromotionIdRequest"][0].children()
def textNode1 = node["soapenv:Body"]["get:getPromotionIdRequest"][0].children()
textNode1.clear();
def index=0;
while(index<2){
textNode1.add("getPromotionIdRequest<")

textNode1.add("12345")
textNode1.add("")
index ++
}
printer.print(node);
reqProperty.setValue(writer.toString())


Does anyone have any idea how will it work in 2.5