Clean Insert with XML file

IDataSet dataSet = getXMLDataSet("rcst_m_customer.xml");
DatabaseOperation.CLEAN_INSERT.execute(connection, dataSet)
/**
     * getting Dataset from .xml file.
     * 
     * @param fileName xml File Name
     * 
     * @return Dataset for DBunit.
     */
    private IDataSet getXMLDataSet(String fileName){                  
        IDataSet dataSet = null;            
        try {       
              dataSet = new XmlDataSet(
              this.getClass().getResourceAsStream(TESTDATA_PATH + fileName));
        } catch (Throwable ex) {            
              ex.printStackTrace();   
              fail("getDataSet thrown exception : " + ex.getMessage());   
        }           
        return dataSet;         
   }