Hi, aother openjpa thing. Most likely again not a bug but i will try ;-)
I have a normal 1:n relation in my ContainerShipment class which works pretty well. @OneToMany(mappedBy = "containerShipment", cascade = CascadeType.ALL) List<OrderPosition> orderPositions; but as soon as i annotate with FetchType.EAGER... @OneToMany(mappedBy = "containerShipment", cascade = CascadeType.ALL, fetch = FetchType.EAGER) List<OrderPosition> orderPositions; i get this stack trace and i really dont have a clue. I checked gazillions of things w/o success. I also made sure that every record as a perfect relation so that i can be sure thats not a data content issue. Any ideas? org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) </pre></p><p><b>root cause</b> <pre>java.lang.ClassCastException: org.apache.openjpa.util.IntId cannot be cast to de.logentis.bwh.model.ContainerShipment de.logentis.bwh.model.OrderPosition.pcReplaceField(OrderPosition.java) org.apache.openjpa.kernel.StateManagerImpl.replaceField(StateManagerImpl.java:3162) org.apache.openjpa.kernel.StateManagerImpl.storeObjectField(StateManagerImpl.java:2596) org.apache.openjpa.kernel.StateManagerImpl.storeObject(StateManagerImpl.java:2586) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.setMappedBy(JDBCStoreManager.java:505) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:431) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:333) org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112) org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57) org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:1027) org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:985) org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:907) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1041) org.apache.openjpa.jdbc.sql.AbstractResult.load(AbstractResult.java:280) org.apache.openjpa.jdbc.sql.SelectImpl$SelectResult.load(SelectImpl.java:2381) org.apache.openjpa.jdbc.meta.strats.RelationToManyInverseKeyFieldStrategy.loadElement(RelationToManyInverseKeyFieldStrategy.java:90) org.apache.openjpa.jdbc.meta.strats.RelationCollectionInverseKeyFieldStrategy.loadElement(RelationCollectionInverseKeyFieldStrategy.java:76) org.apache.openjpa.jdbc.meta.strats.StoreCollectionFieldStrategy.processEagerParallelResult(StoreCollectionFieldStrategy.java:312) org.apache.openjpa.jdbc.meta.strats.StoreCollectionFieldStrategy.loadEagerParallel(StoreCollectionFieldStrategy.java:246) org.apache.openjpa.jdbc.meta.FieldMapping.loadEagerParallel(FieldMapping.java:916) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1114) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1067) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initializeState(JDBCStoreManager.java:438) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.initialize(JDBCStoreManager.java:333) org.apache.openjpa.kernel.DelegatingStoreManager.initialize(DelegatingStoreManager.java:112) org.apache.openjpa.kernel.ROPStoreManager.initialize(ROPStoreManager.java:57) org.apache.openjpa.kernel.BrokerImpl.initialize(BrokerImpl.java:1027) org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:985) org.apache.openjpa.kernel.BrokerImpl.find(BrokerImpl.java:907) org.apache.openjpa.jdbc.kernel.JDBCStoreManager.load(JDBCStoreManager.java:1041) org.apache.openjpa.jdbc.sql.AbstractResult.load(AbstractResult.java:280) org.apache.openjpa.jdbc.sql.SelectImpl$SelectResult.load(SelectImpl.java:2381) org.apache.openjpa.jdbc.sql.AbstractResult.load(AbstractResult.java:274) org.apache.openjpa.jdbc.kernel.InstanceResultObjectProvider.getResultObject(InstanceResultObjectProvider.java:59) org.apache.openjpa.kernel.QueryImpl$PackingResultObjectProvider.getResultObject(QueryImpl.java:2075) org.apache.openjpa.lib.rop.EagerResultList.<init>(EagerResultList.java:36) org.apache.openjpa.kernel.QueryImpl.toResult(QueryImpl.java:1251) org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:1007) org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:863) org.apache.openjpa.kernel.QueryImpl.execute(QueryImpl.java:794) org.apache.openjpa.kernel.DelegatingQuery.execute(DelegatingQuery.java:542) org.apache.openjpa.persistence.QueryImpl.execute(QueryImpl.java:315) org.apache.openjpa.persistence.QueryImpl.getResultList(QueryImpl.java:331) org.springframework.data.jpa.repository.support.SimpleJpaRepository.readPage(SimpleJpaRepository.java:434) org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:303) org.springframework.data.jpa.repository.support.SimpleJpaRepository.findAll(SimpleJpaRepository.java:260) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:361) org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:342) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:155) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172) org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:202) $Proxy135.findAll(Unknown Source) de.netstorsys.controller.rest.ContainerShipmentRestController.showAll(ContainerShipmentRestController.java:51) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) java.lang.reflect.Method.invoke(Method.java:597) org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426) org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) --- regards Marc Logemann