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Trying to get past a class cast exception here:
FooClass fooClass = (FooClass ) unmarshaller.unmarshal(inputStream); throws this exception:
java.lang.ClassCastException: javax.xml.bind.JAXBElement I don't understand this - as the class was generated by the xjc.bat tool - and the classes it generated I have not altered at all - so there should be no casting problems here - the unmarshaller should really be giving me back a class that CAN be cast to FooClass.
Any ideas as to what I am doing wrong?
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Introduction. ClassCastException is a runtime exception raised in Java when we try to improperly cast a class from one type to another. It's thrown to indicate that the code has attempted to cast an object to a related class, but of which it is not an instance.
A class cast exception is thrown by Java when you try to cast an Object of one data type to another.
To prevent the ClassCastException exception, one should be careful when casting objects to a specific class or interface and ensure that the target type is a child of the source type, and that the actual object is an instance of that type.
This exception indicates that an error has occurred while performing an unmarshal operation that prevents the JAXB Provider from completing the operation. The ValidationEventHandler can cause this exception to be thrown during the unmarshal operations.
Does FooClass have the XmlRootElement annotation? If not, try:
Source source = new StreamSource(inputStream); JAXBElement<FooClass> root = unmarshaller.unmarshal(source, FooClass.class); FooClass foo = root.getValue(); That's based on the Unofficial JAXB Guide.
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