def xml = """
<CreditDetailsListResponse> <CreditDetails> <SubOfferId>OFF108</SubOfferId> <SubOfferPrice>0.0</SubOfferPrice> <CreditAmount>10.0</CreditAmount> <AvailableAmount>0.0</AvailableAmount> <CreditTax>0.7</CreditTax> <AvailableTax>0.0</AvailableTax> </CreditDetails>
<CreditDetails>
 <SubOfferId>OFF062</SubOfferId>
 <SubOfferPrice>0.0</SubOfferPrice>
 <CreditAmount>2.33</CreditAmount>
 <AvailableAmount>0.0</AvailableAmount>
 <CreditTax>0.16</CreditTax>
 <AvailableTax>0.0</AvailableTax>
 </CreditDetails>  </CreditDetailsListResponse>"""
 
def cTax = new XmlSlurper().parseText(xml).'**'.findAll{it.name() == 'CreditTax'}.collect{it.text() as double}.sum()
println "Total tax : $cTax"

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