How to serialize java.sql.Date as Long, when using web services? - glassfish

Question

I have a simple web service method that returns a simple java class as return value.
#WebMethod()
public SimpleClass myMethod();
#XmlRootElement()
public class SimpleClass {
#XmlElement(name="myDate")
#XmlJavaTypeAdapter(value=MyDateAdapter.class)
public java.sql.Date myDate = new java.sql.Date(new java.util.Date().getTime());
}
I want that java.sql.Date will transmitted as Long value in the XML (because the client is J2ME that cannot handle complex things).
For this puprpose I took the solution that was mentioned in many places before, and worked great on Glassfish v2.
First, I declare the following adapter:
public class MyDateAdapter extends XmlAdapter<Long, java.sql.Date> {
public java.sql.Date unmarshal(Long v) throws Exception {
return new java.sql.Date(v);
}
public Long marshal(java.sql.Date v) throws Exception {
return v.getTime();
}
}
Then, I declare its usage in package-info file like this:
#XmlJavaTypeAdapters({
#XmlJavaTypeAdapter(value=MyDateAdapter.class,type=java.sql.Date.class)
})
package mingler.tracker.ejb.client;
The problem happens on GlassFish 3. The date is transmitted as "xs:dateTime" value, instead of Long, although I defined the adapter properly.
This is the response I get from GlassFish 3 server, when I call my web service:
<?xml version="1.0" encoding="UTF-8"?>
<S:Envelope xmlns:S="http://schemas.xmlsoap.org/soap/envelope/">
<S:Body>
<ns2:myMethodResponse xmlns:ns2="http://nevermind.com">
<return>
<myDate xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:dateTime">2010-12-09T12:44:06.875+02:00</myDate>
</return>
</ns2:myMethodResponse>
</S:Body>
</S:Envelope>
I also checked with the debugger -- the functions in the adapter are never called.
On the other hand, the adapater is not useless, because if I try to remove it I get JAXB exception,
telling me that java.sql.Date cannot be handled because it doesn't have no-arg constructor.
Any ideas?
20/12/2010 -
I added links to a project jar with sources and the results for glassfish2 and glassfish3:
jar file ,glassfish3 result , glassfish2 result

Answer 1

I have posted a bug for this issue, it should be solved on version 3.1 (link)

Answer 2

You have the #XmlJavaTypeAdapter declared at both the property level and the package level. Have you tried only declaring it in one spot?
Either:
#XmlJavaTypeAdapter(value=MyDateAdapter.class)
public java.sql.Date myDate = new java.sql.Date(new java.util.Date().getTime());
Or:
#XmlJavaTypeAdapters({
#XmlJavaTypeAdapter(value=MyDateAdapter.class,type=java.sql.Date.class)
})
package mingler.tracker.ejb.client;
Instead of both.