Hello,

I'm testing nhibernate with mono and I have problems when I turn lazy="true".

If I define an interface for proxy lazy recuperation runs ok, but, if I define public members as virtual, and don't define proxy interface, then hibernate crash in a many-to-one relation with this error:

-------------------------------------------------------------------------------
Unhandled Exception: NHibernate.HibernateException: Creating a proxy instance failed ---> System.NullReferenceException: Object reference not set to an instance of an object
in <0x00088> Castle.DynamicProxy.Builder.CodeBuilder.EasyType:IsAssemblySigned (System.Type baseType)
in <0x00032> Castle.DynamicProxy.Builder.CodeBuilder.EasyType:.ctor (Castle.DynamicProxy.Builder.CodeGenerators.ModuleScope modulescope, System.String name, System.Type baseType, System.Type[] interfaces, Boolean serializable)
in <0x0003e> Castle.DynamicProxy.Builder.CodeGenerators.BaseCodeGenerator:CreateTypeBuilder (System.String typeName, System.Type baseType, System.Type[] interfaces)
in <0x000e6> Castle.DynamicProxy.Builder.CodeGenerators.ClassProxyGenerator:GenerateCode (System.Type baseClass, System.Type[] interfaces)
in <0x00033> Castle.DynamicProxy.Builder.DefaultProxyBuilder:CreateClassProxy (System.Type theClass, System.Type[] interfaces)
in <0x00061> Castle.DynamicProxy.ProxyGenerator:CreateClassProxy (System.Type baseClass, System.Type[] interfaces, IInterceptor interceptor, Boolean checkAbstract, System.Object[] argumentsForConstructor)
in <0x00085> NHibernate.Proxy.CastleProxyFactory:GetProxy (System.Object id, ISessionImplementor session)--- End of inner exception stack trace ---

in <0x001e3> NHibernate.Proxy.CastleProxyFactory:GetProxy (System.Object id, ISessionImplementor session)
in <0x00020> NHibernate.Persister.AbstractEntityPersister:CreateProxy (System.Object id, ISessionImplementor session)
in <0x001a0> NHibernate.Impl.SessionImpl:DoLoadByClass (System.Type clazz, System.Object id, Boolean checkDeleted, Boolean allowProxyCreation)
in <0x0001a> NHibernate.Impl.SessionImpl:InternalLoad (System.Type clazz, System.Object id)
in <0x00032> NHibernate.Type.ManyToOneType:ResolveIdentifier (System.Object id, ISessionImplementor session)
in <0x00030> NHibernate.Type.EntityType:ResolveIdentifier (System.Object id, ISessionImplementor session, System.Object owner)
in <0x0011b> NHibernate.Impl.SessionImpl:InitializeEntity (System.Object obj)
in <0x000c0> NHibernate.Loader.Loader:InitializeEntitiesAndCollections (IList hydratedObjects, System.Object resultSetId, ISessionImplementor session)
in <0x00316> NHibernate.Loader.Loader:DoQuery (ISessionImplementor session, NHibernate.Engine.QueryParameters queryParameters, System.Object optionalObject, System.Object optionalId, System.Object[] optionalCollectionKeys, Boolean returnProxies)
in <0x0003a> NHibernate.Loader.Loader:DoQueryAndInitializeNonLazyCollections (ISessionImplementor session, NHibernate.Engine.QueryParameters queryParameters, System.Object optionalObject, System.Object optionalId, System.Object[] optionalCollectionKeys, Boolean returnProxies)
in <0x0003d> NHibernate.Loader.Loader:LoadEntity (ISessionImplementor session, System.Object[] values, NHibernate.Type.IType[] types, System.Object optionalObject, System.Object optionalID)
in <0x0007e> NHibernate.Loader.Loader:LoadEntity (ISessionImplementor session, System.Object id, IType identifierType, System.Object optionalObject, System.Object optionalIdentifier)
in <0x00028> NHibernate.Loader.EntityLoader:Load (ISessionImplementor session, System.Object id, System.Object optionalObject, System.Object optionalId)
in <0x00019> NHibernate.Loader.EntityLoader:Load (ISessionImplementor session, System.Object id, System.Object optionalObject)
in <0x00197> NHibernate.Persister.EntityPersister:Load (System.Object id, System.Object optionalObject, NHibernate.LockMode lockMode, ISessionImplementor session)
-------------------------------------------------------------------------------
Mono: 1.1.13.2
NHibernate: 1.0.2
Database: PostgreSQL 8.1

In the other hand, with MS .NET, for the same project, lazy recuperation works fine in all situations.

Some idea?, the problem is mono?

Thanks in advance,

This looks like a bug in Castle DynamicProxy, I reported it to the Castle mailing list. If they tell me anything I'll post it here.

Please contact me via e-mail, I have a fixed version of DynamicProxy that I would like you to test.

Or you can build it yourself if you check out the DynamicProxy code from the Castle SVN repository.