private RemoteCustomFieldValue makeCustomFieldValue(Hashtable struct) throws IllegalAccessException, InvocationTargetException
{
  RemoteCustomFieldValue customFieldValue = new RemoteCustomFieldValue();
  customFieldValue.setCustomfieldId((String) struct.get("customfieldId"));
  customFieldValue.setKey((String) struct.get("key"));
  customFieldValue.setValues(makeStringVector((Vector) struct.get("values")));
  return customFieldValue;
}

private String[] makeStringVector(Vector vector)
{
  final String[] strings = new String[vector.size()];
  int i = 0;
  for (Iterator iterator = vector.iterator(); iterator.hasNext();)
  {
    Object j = iterator.next();
    strings[i] = (String) j;
    i++;
  }
  return strings;
}

...
<name>customFieldValues</name>
  <value>
    <array>
      <data>
        <value>
        <value>
          <struct>
            <member>
              <name>customfieldId</name>
              <value>
                <string>customfield_10100</string>
              </value>
            </member>
            <member>
              <name>values</name>
              <value>
                <array>
                  <data>
                    <value>
                      <int>10194</int>
                    </value>
                  </data>
                </array>
              </value>
            </member>
            <member>
              <name>key</name>
              <value>
                <int>1</int>
              </value>
            </member>
          </struct>
        </value>
      </data>
    </array>
  </value>
</member>
...