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newbie - lots of exeptions

(EJBSecurityManager.java:1124) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer ... ) at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:800 ... :601) at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept

UTF Error

: Error reading UTF string at com.sun.ejb.containers.EJBContainerTransactionManager.processSystemException(EJBContainerTransactionManager.java:723) at com.sun.ejb.containers.EJBContainerTransactionManager.completeNewTx(EJBContainerTransactionManager.java:652) at com.sun.ejb.containers

Conflicting modifiers .... (javax.persistence.Id, javax.persistence.ManyToOne)

I have two classes a Container type class and another class that is 'contained' by that class. The contained class, CompoundKeyMapItem, represents an alternate implementation of an object held in a Map, and uses a Compound Primary Key. The contained class therefore uses

Should derived fields of an EmbeddedId be manually maintained by app code?

which tells me what to expect. I have a container class EContainer that is reponsible ... for the item class, ECompoundKeyMapItemId, contains a field, "cont", that is derived from ECompoundKeyMapItem's container field via the @MapsId("cont") annotation. Likewise the ECompoundKeyMapSubItem

ObjectDB-2.6.9: Failed to commit transaction: Failed to set numeric value of field property Element.id using reflection

.enterprise.container.common.impl.EntityManagerWrapper.flush(EntityManagerWrapper.java:437) at com ... .invoke(EJBSecurityManager.java:1153) at com.sun.ejb.containers.BaseContainer.invokeBeanMethod ... .sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822

javax.persistence.InheritanceType

">Returns an array containing the constants of this enum type. Returns an array containing the constants of this enum type.containing the constants of this enum type, in the order they are declared

PessimisticLockScope.NORMAL

relationships for which the locked entity contains the foreign key will also be locked, but not the state ... and relationships for which the entity does not contain the foreign key (such as relationships that are mapped to join tables or unidirectional one-to-many relationships for which the target entity contains

javax.persistence.CacheStoreMode

> () Returns an array containing the constants ... an array containing the constants of this enum type.This method may be used to iterate ... : an array containing the constants of this enum type, in

javax.jdo.annotations.Persistent

class="teaser"> Behavior when this member contains a null value. Behavior when this member contains a null value ... > the behavior when this member contains a null value

javax.jdo.FetchGroup

immediately affect FetchPlans that contain the FetchGroup. containing the names of all members. Return an immutable Set of String containing the names of all members