avoid stax exception when all phases are disabled

andrug

26.44.2008 0d5c92ecde5bd7ebf8fe1d55740446b160f9bb19

avoid stax exception when all phases are disabled

 opends/tests/system-tests/phases/verdict/verdict.xml

@@ -211,17 +211,26 @@
        nbItemSuccess = 0
        percentageResult = 0
      </script>
      <iterate in="items" var="item">
      <if expr="nbItems > 0 ">
        <sequence>
          <iterate in="items" var="item">
            <script>
              if item[1] == 0:
                nbItemSuccess += 1
            </script>
          </iterate>
          <script>
            percentageResult = nbItemSuccess * 100
            percentageResult = percentageResult / nbItems
            phase.setPercentage(percentageResult)
          </script>
        </sequence>
      <else>
        <script>
          if item[1] == 0:
            nbItemSuccess += 1
          phase.setPercentage('100')
        </script>
      </iterate>
      <script>
        percentageResult = nbItemSuccess * 100
        percentageResult = percentageResult / nbItems
        phase.setPercentage(percentageResult)
      </script>
      </else>
      </if>
      
      <!--==========  Call postphase =========-->
      <call function="'phasePostamble'">