Uncertainty in using wsdl2java on

[wf]

Hi,

I am using wsdl2java in Axis 1.2 to generate Java classes from wsdl and
schema files.

The schema contains:

<xsd:complexType>
    <xsd:simpleContent>
        <xsd:extension base="string">
            <xsd:attribute name="A1" .... type="string"
            <xsd:attribute name="A2" .... type="string"

In the wsdl2java generated Java class corresponding to this type, SOMETIMES
both A1 and A2 refer to the base string, i.e.,

Class SomeName {
    String value;

    String get_value() { return value;}

    String getA1() {return value;}

   String getA2() {return value;}

 ......... 
}

The interesting things is sometimes this will not happen, sometimes this
will happen. I can not see very obvious rule behind this.
use="required|optional" does not affact according to my observation. 

But, wsdl2java in axis 1.1 does not have this problem. Anyone has insight
into this problem? Thank you very much!

Regards,

Weijian