private void setExpression(XmlAttributeNode attribute, XmlExpression xmlExpression) {
attribute.setExpressions(new XmlExpression[] {xmlExpression});
}
protected void setExpressions(XmlAttributeNode attribute, List<XmlExpression> xmlExpressions) {
attribute.setExpressions(xmlExpressions.toArray(new XmlExpression[xmlExpressions.size()]));
}