JAXB marshal/unmarshal - ing SWT.Image or AWT BufferedImage - image

Question

I am trying to marshal with jaxb an object which contains an Image, and afterwards unmarshalling it (i.e. save/load).
Is there a way to store that image?
I am trying to create a function which returns the byte array describing the swt.image imagedata, but once I marked it as an #XmlElement, the process of storing it fails throwing an Exception like this:
com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 1 counts of IllegalAnnotationExceptions
JAXB annotation is placed on a method that is not a JAXB property
this problem is related to the following location:
at #javax.xml.bind.annotation.XmlElement()
Also, I have tested to convert the SWT.Image to a AWT.BufferedImage, but I still get the same Exception.

Answer 1

Your exception indicates that you have placed an annotation on a method that isn't an accessor (get/set method). Below is an example using a java.awt.Image property:
Root
package forum9094655;
import java.awt.Image;
import javax.xml.bind.annotation.XmlRootElement;
#XmlRootElement
public class Root {
private Image image;
public Image getImage() {
return image;
}
public void setImage(Image image) {
this.image = image;
}
}
Demo
package forum9094655;
import java.awt.Image;
import java.awt.image.BufferedImage;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.Marshaller;
public class Demo {
public static void main(String[] args) throws Exception {
JAXBContext jc = JAXBContext.newInstance(Root.class);
Root root = new Root();
Image image = new BufferedImage(1,1,BufferedImage.TYPE_INT_RGB);
root.setImage(image);
Marshaller marshaller = jc.createMarshaller();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(root, System.out);
}
}
Output
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<root>
<image>iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAIAAACQd1PeAAAADElEQVR42mNgYGAAAAAEAAHI6uv5AAAAAElFTkSuQmCC</image>
</root>