I have a issue where, I have a converter class say called aConverter as such:
@XmlRootElement(name = "aConverter")
public class aConverter implements ConverterBase{
private A a;
private Set<B> bs;
/// some constructor code here
...
@XmlElement(name="B")
public Set<B> getBs() {
bs = a.getBs();
return bs;
}
public void setBs(Set<B> bs) {
a.setBs(bs);
}
}
Class A and B are defined respectively in a cyclic fashion:
public class A {
private Set <B> bs;
//constructor code here
...
public Set<B> getBs() {
return this.bs;
}
public void setBs(Set<B> bs) {
this.bs = bs;
}
}
>
public class B {
private A a;
// some constructor code here
...
public A getA() {
return this.a;
}
public void setA(A a) {
this.a = a;
}
}
Now, when I the webservice I’m seeing the following error:
[com.sun.istack.internal.SAXException2: A cycle is detected in the object graph. This will cause infinitely deep XML: B@1105452 -> A@1 -> B@1105452]
at com.sun.jersey.core.provider.jaxb.AbstractRootElementProvider.writeTo(AbstractRootElementProvider.java:152)
at com.sun.jersey.spi.container.ContainerResponse.write(ContainerResponse.java:294)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1140)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1053)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1043)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:406)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:477)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:662)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:680)
Caused by: javax.xml.bind.MarshalException
– with linked exception:
I’m really out of ideas here, any feeback on this would be really nice.
Cheers!
In EclipseLink JAXB (MOXy) we introduced the @XmlInverseReference extension to solve this issue. For an example of how this can be leveraged in a JAX-RS service check out: