Bean with circular reference?

[Robert van der Spek]

To give my hippo project a rest endpoint, I have followed the instructions (1). I have now noticed this gives some problems while initializing the bean context. The console output:
 

[INFO] [talledLocalContainer] 12.04.2017 14:56:36 WARN  localhost-startStop-1 [AbstractBeanFactory.getTypeForFactoryBean:1524] Bean creation exception on non-lazy FactoryBean type check: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.beans.factory.config.MethodInvokingFactoryBean#8' defined in class path resource [org/hippoecm/hst/site/optional/jaxrs/SpringComponentManager-rest-plain-pipeline.xml]: Cannot create inner bean 'org.hippoecm.hst.core.container.HstSitePipeline#327a13a0' of type [org.hippoecm.hst.core.container.HstSitePipeline] while setting bean property 'arguments' with key [1]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.hippoecm.hst.core.container.HstSitePipeline#327a13a0' defined in class path resource [org/hippoecm/hst/site/optional/jaxrs/SpringComponentManager-rest-plain-pipeline.xml]: Cannot resolve reference to bean 'jaxrsRestPlainServiceValve' while setting bean property 'processingValves' with key [4]; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: Error creating bean with name 'jaxrsRestPlainServiceValve': Requested bean is currently in creation: Is there an unresolvable circular reference?

code snippet from site/src/main/resources/META-INF/hst-assembly/overrides/hst-spring-config.xml :

<!-- The following three imports will include pipeline configurations for >>>
<<<< both JaxrsRestPlainPipeline and JaxrsRestContentPipeline !!! -->
<import resource="classpath:/org/hippoecm/hst/site/optional/jaxrs/SpringComponentManager-rest-jackson.xml" />

<import resource="classpath:/org/hippoecm/hst/site/optional/jaxrs/SpringComponentManager-rest-plain-pipeline.xml" />

<import resource="classpath:/org/hippoecm/hst/site/optional/jaxrs/SpringComponentManager-rest-content-pipeline.xml" />

The warning dissapears when the second import is commented out. However, as is to be expected, the endpoint now gives a server error. Is it possible to fix this?

1.  https://www.onehippo.org/library/concepts/rest/restful-api-support---plain-jax-rs-services.html

[Woonsan Ko]

Could it be the same issue as the following?

- https://groups.google.com/forum/#!msg/hippo-community/QBzhsUePZJk/dXKxzSg_AQAJ

Regards,

Woonsan

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[Ard Schrijvers]

I think it is related or the same as [1] which I want to fix according [2].

@Robert: Can you check whether the <import> resources are not present
in other local spring xml files as well? If so, can you try to remove
the duplicates

Regards Ard

[1] https://issues.onehippo.com/browse/HSTTWO-3639
[2] https://issues.onehippo.com/browse/HSTTWO-3441

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[Robert van der Spek]

Thanks Woonsan, I think it is the same. As you said in the other discussion: it does not seem to affect the application. I will ignore the warning until a fix is available. 

@Ard: it is only being imported once :)