[binder] IllegalArgumentException if no local name is there for

[laeubi]

If one tries to update an element with binder that is not @XmlRootElement the following code is called

jaxb-ri/jaxb-ri/runtime/impl/src/main/java/org/glassfish/jaxb/runtime/v2/runtime/BinderImpl.java

Lines 180 to 182 in b7d1ff7

	if(!bi.isElement())
	jaxbObject = new JAXBElement(new QName(e.getNamespaceURI(),e.getLocalName()),bi.jaxbType,jaxbObject);

but it could happen that localName is null resulting in an IllegalArgumentException from QName conctructor. In such a case there should either be an JaxbException if this is illegal or fall back to the element name.