[
https://issues.apache.org/jira/browse/OLINGO-714?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Chandan V.A resolved OLINGO-714.
--------------------------------
Resolution: Fixed
Fix Version/s: V2 2.0.5
Hi,
The issue was with navigation property getting bound to a wrong association.
This happened because the names of association with end types Entity and
OtherEntity and Multiplicity 1:N and N:1 conflicted with each other. This
resulted in the generation of only one association in the end and that was
shared by the navigation properties otherEntities and primaryOtherEntity.
With the fix -
http://git-wip-us.apache.org/repos/asf/olingo-odata2/commit/0f08913b now
associations are generated with proper names and hence there shall not be
conflicting names. This will result in navigation properties to bind to correct
association names.
Thanks
Kind regards
Chandan
> ClassCastException on expand when multiple times the same entity is referenced
> ------------------------------------------------------------------------------
>
> Key: OLINGO-714
> URL: https://issues.apache.org/jira/browse/OLINGO-714
> Project: Olingo
> Issue Type: Bug
> Components: odata2-jpa
> Affects Versions: V2 2.0.5
> Environment: java 8, wildfly-8.2.0, hibernate 4.3.7.Final
> Reporter: Manuel Blechschmidt
> Assignee: Chandan V.A
> Labels: ClassCastException
> Fix For: V2 2.0.5
>
>
> When an entity has multiple relations to another entity and one of these
> relations is a unidirectional @ManyToOne relation a class cast exception is
> thrown.
> e.g.
> {code:java}
> @Entity
> public class Entity {
> @Id
> private String id;
> @ManyToOne(fetch=FetchType.LAZY)
> private OtherEntity primaryOtherEntity;
> @OneToMany(mappedBy="entity", fetch=FetchType.LAZY)
> private List<OtherEntity> OtherEntities;
> // ... getter and setter
> }
> @Entity
> public class OtherEntity {
> @Id
> private String id;
> @ManyToOne(fetch=FetchType.LAZY)
> private Entity entity;
> // ... getter and setter
> }
> {code}
> http://localhost:8080/Example.svc/Entity?$expand=OtherEntityDetails%2cOtherEntityDetails1
> {code}
> 16:31:20,579 ERROR [stderr] (default task-26) java.lang.ClassCastException:
> com.example.cloud.entities.OtherEntity_$$_jvst6ce_d6 cannot be cast to
> java.util.Collection
> 16:31:20,579 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.jpa.processor.core.callback.JPAExpandCallBack.retrieveFeedResult(JPAExpandCallBack.java:148)
> 16:31:20,579 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.appendInlineFeed(AtomEntryEntityProducer.java:275)
> 16:31:20,579 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.appendAtomNavigationLink(AtomEntryEntityProducer.java:241)
> 16:31:20,579 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.appendAtomNavigationLinks(AtomEntryEntityProducer.java:222)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.append(AtomEntryEntityProducer.java:126)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.AtomEntityProvider.writeEntry(AtomEntityProvider.java:174)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.ProviderFacadeImpl.writeEntry(ProviderFacadeImpl.java:128)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.api.ep.EntityProvider.writeEntry(EntityProvider.java:576)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.jpa.processor.core.ODataJPAResponseBuilderDefault.build(ODataJPAResponseBuilderDefault.java:167)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.jpa.processor.core.ODataJPAProcessorDefault.readEntity(ODataJPAProcessorDefault.java:82)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.Dispatcher.dispatch(Dispatcher.java:87)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ODataRequestHandler.handle(ODataRequestHandler.java:129)
> 16:31:20,580 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.rest.ODataSubLocator.handle(ODataSubLocator.java:167)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.rest.ODataSubLocator.handleGet(ODataSubLocator.java:58)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> sun.reflect.GeneratedMethodAccessor129.invoke(Unknown Source)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> java.lang.reflect.Method.invoke(Method.java:606)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:140)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:103)
> 16:31:20,581 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> org.picketlink.authentication.web.AuthenticationFilter.doFilter(AuthenticationFilter.java:170)
> 16:31:20,582 ERROR [stderr] (default task-26) at
> io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,583 ERROR [stderr] (default task-26) at
> io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,584 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 16:31:20,585 ERROR [stderr] (default task-26) at
> java.lang.Thread.run(Thread.java:745)
> 16:31:20,599 ERROR [stderr] (default task-26) java.lang.ClassCastException:
> com.example.cloud.entities.OtherEntity_$$_jvst6ce_d6 cannot be cast to
> java.util.Collection
> 16:31:20,599 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.jpa.processor.core.callback.JPAExpandCallBack.retrieveFeedResult(JPAExpandCallBack.java:148)
> 16:31:20,599 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.appendInlineFeed(AtomEntryEntityProducer.java:275)
> 16:31:20,599 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.appendAtomNavigationLink(AtomEntryEntityProducer.java:241)
> 16:31:20,599 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.appendAtomNavigationLinks(AtomEntryEntityProducer.java:222)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.producer.AtomEntryEntityProducer.append(AtomEntryEntityProducer.java:126)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.AtomEntityProvider.writeEntry(AtomEntityProvider.java:174)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ep.ProviderFacadeImpl.writeEntry(ProviderFacadeImpl.java:128)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.api.ep.EntityProvider.writeEntry(EntityProvider.java:576)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.jpa.processor.core.ODataJPAResponseBuilderDefault.build(ODataJPAResponseBuilderDefault.java:167)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.jpa.processor.core.ODataJPAProcessorDefault.readEntity(ODataJPAProcessorDefault.java:82)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.Dispatcher.dispatch(Dispatcher.java:87)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.ODataRequestHandler.handle(ODataRequestHandler.java:129)
> 16:31:20,600 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.rest.ODataSubLocator.handle(ODataSubLocator.java:167)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.apache.olingo.odata2.core.rest.ODataSubLocator.handleGet(ODataSubLocator.java:58)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> sun.reflect.GeneratedMethodAccessor129.invoke(Unknown Source)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> java.lang.reflect.Method.invoke(Method.java:606)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceMethodInvoker.invokeOnTarget(ResourceMethodInvoker.java:296)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:250)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceLocatorInvoker.invokeOnTargetObject(ResourceLocatorInvoker.java:140)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.ResourceLocatorInvoker.invoke(ResourceLocatorInvoker.java:103)
> 16:31:20,601 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:179)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:220)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:56)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:51)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:85)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:130)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> org.picketlink.authentication.web.AuthenticationFilter.doFilter(AuthenticationFilter.java:170)
> 16:31:20,602 ERROR [stderr] (default task-26) at
> io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:60)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:132)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:85)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:61)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> org.wildfly.extension.undertow.security.SecurityContextAssociationHandler.handleRequest(SecurityContextAssociationHandler.java:78)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.SSLInformationAssociationHandler.handleRequest(SSLInformationAssociationHandler.java:131)
> 16:31:20,603 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.ServletAuthenticationCallHandler.handleRequest(ServletAuthenticationCallHandler.java:56)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.security.handlers.AbstractConfidentialityHandler.handleRequest(AbstractConfidentialityHandler.java:45)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.ServletConfidentialityConstraintHandler.handleRequest(ServletConfidentialityConstraintHandler.java:63)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.security.handlers.AuthenticationMechanismsHandler.handleRequest(AuthenticationMechanismsHandler.java:58)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.security.CachedAuthenticatedSessionHandler.handleRequest(CachedAuthenticatedSessionHandler.java:70)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.security.handlers.SecurityInitialHandler.handleRequest(SecurityInitialHandler.java:76)
> 16:31:20,604 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> org.wildfly.extension.undertow.security.jacc.JACCContextIdHandler.handleRequest(JACCContextIdHandler.java:61)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:261)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:247)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler.access$000(ServletInitialHandler.java:76)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:166)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.server.Connectors.executeRootHandler(Connectors.java:197)
> 16:31:20,605 ERROR [stderr] (default task-26) at
> io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:759)
> 16:31:20,606 ERROR [stderr] (default task-26) at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 16:31:20,606 ERROR [stderr] (default task-26) at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 16:31:20,606 ERROR [stderr] (default task-26) at
> java.lang.Thread.run(Thread.java:745)
> {code}
> I will open a pull request on github because we already have a patch.
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