It does not appear to be picking up the type from the annotation. For example, when I run the org.jboss.test.xb.builder.object.mc.test.BeanTestCase.testBeanWithAnnotation test, its failing with an attempt to create an interface instance: anonymous wrote : | Caused by: org.jboss.joinpoint.spi.JoinpointException: Constructor not found org.jboss.test.xb.builder.object.mc.support.model.AnnotationMetaData[] no constructors | at org.jboss.joinpoint.plugins.Config.findConstructorInfo(Config.java:276) | at org.jboss.joinpoint.plugins.Config.getConstructorJoinpoint(Config.java:150) | at org.jboss.beans.info.plugins.AbstractBeanInfo.newInstance(AbstractBeanInfo.java:221) | at org.jboss.beans.info.plugins.AbstractBeanInfo.newInstance(AbstractBeanInfo.java:216) | at org.jboss.xb.spi.AbstractBeanAdapter.construct(AbstractBeanAdapter.java:115) | The corresponding property is annotated with the concrete type that should be used however: | @XmlElement(name="annotation", type=AbstractAnnotationMetaData.class) | public void setAnnotations(Set<AnnotationMetaData> annotations) | { | this.annotations = annotations; | flushJBossObjectCache(); | } | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4088147#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...