java.lang.ClassCastException: javax.xml.bind.JAXBElement

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marco - 12 Jun 2006 09:31 GMT

Hi,

this problem occurs using JAXB with for unmarshalling an XML file.
The code is:

JAXBContext jc = JAXBContext.newInstance("Resource");
Unmarshaller u = jc.createUnmarshaller();

//u.setValidating(true); //deprecated!!

MyResType res = (MyResType)u.unmarshal(new FileInputStream("foo.xml"));

Anyone can help?

Thanks

Reply to this Message

Oliver Wong - 12 Jun 2006 18:46 GMT

> Hi,
>
[quoted text clipped - 7 lines]
>
> MyResType res = (MyResType)u.unmarshal(new FileInputStream("foo.xml"));

Use something like:

System.err.println(u.umarshal(new
FileInputStream("foo.xml")).getClass().getName());

to get the actual type that's being returned, or use a debugger to
inspect the variable.

- Oliver

Reply to this Message

marco - 13 Jun 2006 13:36 GMT

Thank you Oliver,

javax.xml.bind.JAXBElement is the actual type that is being returned.

I've read the documentation, but I wasn't able to solve this problem.

Oliver Wong ha scritto:

> > Hi,
> >
[quoted text clipped - 17 lines]
>
> - Oliver

Reply to this Message

Oliver Wong - 13 Jun 2006 15:01 GMT

[post re-ordered]

> Oliver Wong ha scritto:
>
[quoted text clipped - 19 lines]
>
> javax.xml.bind.JAXBElement is the actual type that is being returned.

You probably marshalled your data incorrectly then. Show the marshalling
code.

- Oliver

Reply to this Message

marco - 13 Jun 2006 21:54 GMT

JAXBContext jax = JAXBContext.newInstance("Resource");
Marshaller m = jax.createMarshaller();
MyResType myRes = obj.createMyResType();
myRes.setBody("body"); //simple xsd:strings here
myRes.setHeader("header");

m.marshal(myRes, new FileOutputStream("foo.xml"));

thanks a lot!

Oliver Wong ha scritto:

> [post re-ordered]
>
[quoted text clipped - 26 lines]
>
> - Oliver

Reply to this Message

java.lang.ClassCastException: javax.xml.bind.JAXBElement

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