public class RuleRevisionListener implements RevisionListener {
     @Inject
AuditUserData auditUserData;
    public void newRevision(Object revisionEntity) {
        RuleRevisionEntity ruleRevisionEntity = (RuleRevisionEntity) revisionEntity;
        ruleRevisionEntity.setUsername(auditUserData.getUsername());
        ruleRevisionEntity.setApplication(auditUserData.getApplication());
    }
}

@Entity
@RevisionEntity(RuleRevisionListener.class)
public class RuleRevisionEntity {
    @Id
    @GeneratedValue
    @RevisionNumber
    private int id;

    @RevisionTimestamp
    private long timestamp;

   private String username;
   private String application;

    public int getId() {
        return id;
    }

    public void setId(int id) {
        this.id = id;
    }

    public long getTimestamp() {
        return timestamp;
    }

    public void setTimestamp(long timestamp) {
        this.timestamp = timestamp;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getApplication() {
        return application;
    }

    public void setApplication(String application) {
        this.application = application;
    }

public class RuleRevisionListener implements RevisionListener {

    public void newRevision(Object revisionEntity) {
        AuditUserData auditUserData=getAuditUserData();
        RuleRevisionEntity ruleRevisionEntity = (RuleRevisionEntity) revisionEntity;
        ruleRevisionEntity.setUsername(auditUserData.getUsername());
        ruleRevisionEntity.setApplication(auditUserData.getApplication());
    }

    private AuditUserData getAuditUserData() {
    		BeanManager beanManager = getBeanManager();
    		Bean<AuditUserData> bean = (Bean<AuditUserData>) beanManager.getBeans(AuditUserData.class).iterator().next();
    		CreationalContext<AuditUserData> ctx = beanManager.createCreationalContext(bean);
    		AuditUserData auditUserData = (AuditUserData) beanManager.getReference(bean, AuditUserData.class, ctx);
    		return auditUserData;
    	}

    	// BeanManager not available at injection time so we have to get in on
    	// method call...
    	// TODO: find a way to delay jndi init so that BeanManager is available at
    	// deployment time
    	private BeanManager getBeanManager() {
    		try {
    			InitialContext initialContext = new InitialContext();
    			return (BeanManager) initialContext.lookup("java:comp/BeanManager");
    		} catch (NamingException e) {
    			throw new RuntimeException(e);
    		}
    	}
}