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https://issues.apache.org/jira/browse/CXF-5073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13679018#comment-13679018
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Andras Istvan Nagy commented on CXF-5073:
-----------------------------------------
The attached sample code also contains a third resource interface,
IProductServiceResource, which is used as the root resource interface (in
contrast to the somewhat simplified example in the bug description), but this
is not really relevant, the issue is related to the reference loop between
IProductResource and IPartsResource.
> endless recursion in creating JAX-RS client proxy
> -------------------------------------------------
>
> Key: CXF-5073
> URL: https://issues.apache.org/jira/browse/CXF-5073
> Project: CXF
> Issue Type: Bug
> Components: JAX-RS
> Affects Versions: 2.7.5
> Reporter: Andras Istvan Nagy
> Attachments: drProduct.zip
>
>
> I'm having a problem creating a JAX-RS client proxy with CXF version 2.7.5.
> I wrote a simple sample application designed with a resource model that is
> built up of "ProductResource"s which contain "parts" which are also
> "ProductResource"s ("PartsResource" being a collection wrapper resource).
> Creating the client proxy for these resources gets into an endless recursion
> and eventually fails with a stack overflow. I assume this is related to the
> loop among the resources (ProductResource -> PartsResource ->
> ProductResource).
> When this loop is "immediate", i.e. ProductResource directly references its
> part ProductResource's without the separate "PartsResource" collection
> wrapper, the client proxy creation does not get into the endless recursion
> and succeeds.
> On the server side, there are no problems with either resource model.
> @XmlRootElement(name = "ProductResource")
> @Produces("application/json")
> public interface IProductResource {
> @Path("/parts")
> public IPartsResource getParts();
> ...
> }
> @XmlRootElement(name = "PartsResource")
> @Produces("application/json")
> public interface IPartsResource {
> @Path("/{i}/")
> public IProductResource elementAt(@PathParam("i") String i);
> ...
> }
> And the line that gets into the endless recursion (again simplified a bit):
> IProductResource productResource =
> JAXRSClientFactory.create("http://localhost:9000";, IProductResource.class);
> The relevant part of the stack trace, showing the endless recursion:
> ...
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.evaluateResourceClass(ResourceUtils.java:263)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.createClassResourceInfo(ResourceUtils.java:242)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.evaluateResourceClass(ResourceUtils.java:263)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.createClassResourceInfo(ResourceUtils.java:242)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.evaluateResourceClass(ResourceUtils.java:263)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.createClassResourceInfo(ResourceUtils.java:242)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.evaluateResourceClass(ResourceUtils.java:263)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.createClassResourceInfo(ResourceUtils.java:242)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.evaluateResourceClass(ResourceUtils.java:263)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.createClassResourceInfo(ResourceUtils.java:242)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.evaluateResourceClass(ResourceUtils.java:263)
> at
> org.apache.cxf.jaxrs.utils.ResourceUtils.createClassResourceInfo(ResourceUtils.java:242)
> ...
> Best regards,
> Andras
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