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July 31, 2013

JAXB - Unmarshal XML String into Java Object


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When trying to unmarshal XML to a Java object using JAXB you might want to pass the XML as a String. However the unmarshal() method of the Unmarshaller interface does not support passing an XML String. Following code sample illustrates how to solve this.

July 30, 2013

JAXB - Marshal Element Missing @XmlRootElement Annotation


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Information on the root XML element is required when 'marshalling to' or 'unmarshalling from' a Java object. JAXB provides this information via the @XmlRootElement annotation which contains the name and namespace of the root XML element.

When trying to marshal a class which does not have a @XMLRootElement annotation defined, following error will be thrown: "unable to marshal as an element because it is missing an @XmlRootElement annotation". Alternatively when trying to unmarshal, the Java runtime will report that an "unsuspected element" is found.