JaxbRepresentation gives error “doesnt contain ObjectFactory.class or jaxb.index”

Question

I am trying to create a sample test application which converts an object to JaxbRepresentation. But when I try to run this, it gives me an error.

Main.java file

Answer 1

I got this error because of a ClassLoader issue, and I was able to solve it by explicitly passing the ClassLoader that JAXB should use, so this:

JAXBContext.newInstance(com.myexample.test.ObjectFactory.class.getPackage().getName());

gave an error, but worked properly when using:

JAXBContext.newInstance(com.myexample.test.ObjectFactory.class.getPackage().getName(),
                        com.myexample.test.ObjectFactory.class.getClassLoader());

which is probably similar to user3243752's answer, I bet that JAXB is automatically choosing the ClassLoader from the passed in class when using the #newInstance(Class... classesToBeBound) method signature.

Answer 2

I created an empty jaxb.index file at the location where it was looking for the object factory class. That fixed my problem.

Answer 3

I was using Spring and I just had to change

Jaxb2Marshaller mlr = new Jaxb2Marshaller();
mlr.setContextPaths("","");

to

Jaxb2Marshaller mlr = new Jaxb2Marshaller();
mlr.setPackagesToScan("","");

Ref1 & Ref2

Answer 4

In my case I was able to resolve this by adding a file called "jaxb.index" in the same package folder as the JAXB annotated class. In that file list the simple, non-qualified names of the annotated classes.

For example, my file /MyProject/src/main/java/com/example/services/types/jaxb.index is simply one line (since I have only one JAXB typed class):

ServerDiagContent

which refers to the class com.example.services.types.ServerDiagContent

Answer 5

In my case I was able to solve the problem by changing the instantiation of the JAXBContext. It can either be instantiated with the package name or the ObjectFactory class as a parameter.

When instantiating with the package name:

com.myexample.test.ObjectFactory objectFactory = new com.myexample.test.ObjectFactory();
JAXBContext jaxbContext = JAXBContext.newInstance(objectFactoryMessageBody.getClass().getPackage().getName());

It gave the error:

"com.myexample.test" doesnt contain ObjectFactory.class or jaxb.index

No errors when instantiating with the class name:

com.myexample.test.ObjectFactory objectFactory = new com.myexample.test.ObjectFactory();
JAXBContext jaxbContext = JAXBContext.newInstance(objectFactoryMessageBody.getClass());

Answer 6

If you have an instantiation of your object factory like

private ObjectFactory of;

..then the safest, most reliable way to get a Context to Marshall with is:

  JAXBElement<GreetingListType> gl = of.createGreetings( grList );
  JAXBContext jc = JAXBContext.newInstance(of.getClass());
  Marshaller m = jc.createMarshaller();