My Programming Journal

For some reason while unmarshalling something you get this error
Solution is:
Instead of

javax.xml.bind.JAXBContext jaxbCtx = javax.xml.bind.JAXBContext.newInstance("oasis.names.specification.ubl.schema.xsd.invoice_2");
or
JAXBContext context = JAXBContext.newInstance(inv.getClass().getPackage().getName());

Use a notation like this

javax.xml.bind.JAXBContext jaxbCtx = javax.xml.bind.JAXBContext.newInstance(oasis.names.specification.ubl.schema.xsd.invoice_2.InvoiceType.class);

Where InvoiceType will be the thing you [...]