Aegis.jar -

: Unlike JAXB, which requires @XmlRootElement or similar annotations, Aegis uses reflection and sensible defaults to handle POJOs (Plain Old Java Objects) automatically.

Are you trying to with this file, or

If you are looking to include this in a project, it is typically managed via Maven: Aegis.jar

: You will frequently see xfire-aegis.jar in older Maven dependency trees (e.g., version 1.2.6) for projects using the now-retired Codehaus XFire framework. : Unlike JAXB, which requires @XmlRootElement or similar