Changes on the validator field-validator required

[Greg Huber]

We use  <field-validator type="required"> validator to make sure null is
not passed, but if I use a double it does not now validate, it wants a
Double for it to work.

Has there been any changes, or has it always been like this?

also, other validators work ie the min/max below, with the double.

<field name="bean.thePrice">
        <field-validator type="required">
            <message key="bean.theprice.required">unspecified key</message>
        </field-validator>
        <field-validator type="double">
            <param name="minInclusive">0</param>
            <param name="maxInclusive">2999</param>
            <message key="bean.theprice.range">unspecified key</message>
        </field-validator>
</field>

bean:
..
private double thePrice;
public double getThePrice() {
    return thePrice;
}
public void setThePrice(double thePrice) {
    this.thePrice = thePrice;
}
..
Cheers Greg