Calling AuctionService webservice gives marshalling error --------------------------------------------------------- Key: JBSEAM-3268 URL: https://jira.jboss.org/jira/browse/JBSEAM-3268 Project: Seam Issue Type: Patch Components: Examples Affects Versions: 2.0.2.SP1 Environment: WinXP JBoss 4.2.0.GA JDK 1.5.0_01 Reporter: Jan Hoeve Assignee: Shane Bryzak Fix For: 2.1.1.CR1 Attachments: patch.txt After deploying the seambay example in Jboss, I encountered the following error while invoking the webservice AuctionService from soapUI: [com.sun.istack.SAXException2: A cycle is detected in the object graph. This will cause infinitely deep XML: org.jboss.seam.example.seambay.Auction@1df2b92 -> org.jboss.seam.example.seambay.AuctionImage@1d90a6e -> org.jboss.seam.example.seambay.Auction@1df2b92] at com.sun.xml.bind.v2.runtime.MarshallerImpl.write(MarshallerImpl.java:295) at com.sun.xml.bind.v2.runtime.MarshallerImpl.marshal(MarshallerImpl.java:221) at org.jboss.ws.core.jaxws.JAXBSerializer.serialize(JAXBSerializer.java:83) After looking at the annotations in Auction and AuctionImage it just is very clear: the association between the two classes is bidirectional; and thus causing the Marshaller to throw this error. (Because it cannot find out when to stop following references). After googling/thinking I added an @XmlTransient annotation to AuctionImage#getAuction (see patch) , and thus breaking the loop when marshalling. Now the webserive produces some result and is not giving errors anymore! The problem-yet-to-solve (curious how you guys would solve): With this XmlTransient, xml2object unmarshalling is not fully supported anymore (I broke the loop...).