Re: [morph-user] Problem running a Morph-ed app in WebSphere AppServer

[Stewart A. <ASt...@wo...>]

I configured our WebSphere (6.1.0.5) app server to use "Parent last" as
the class loading mode, but still get the same problem.

I haven't tried the app in any earlier version of WebSphere (we don't
have any version apart from 6.1 installed) and I use Eclipse instead of
RAD.

Not sure how to proceed now. It is blowing up on a search of our "User"
objects. The User object overrides hashCode and equals. The only
different thing about this domain object is that the Hibernate "id"
attribute uses a generator class of "assigned" and is in fact the
username, which is a String. All other domain objects use db sequences
(ie numerics) in the Hibernate mappings, as the primary keys are
synthetic. User uses a natural key.
I can't see how this would affect the operation of Morph anyway,
considering it works fine in Tomcat and JBoss.

Alan=20



-----Original Message-----
From: mor...@li...
[mailto:mor...@li...] On Behalf Of Matt
Benson
Sent: Tuesday, 30 January 2007 7:56 AM
To: For questions about Morph
Subject: Re: [morph-user] Problem running a Morph-ed app in WebSphere
AppServer


Yes, it sounds as though morph and the application
trying to use it are getting String.class from
different classloaders.  Libraries that deal
extensively with class equality, AFAIK, can either
compare classes by name (ugh!) or use .equals() which,
not being overridden in Class.class, is equivalent to
=3D=3D.  Your best bet is to do what you can to eliminate
classloader weirdness in your application deployment
setup.

Do you know if earlier versions of WAS suffer from the
same problem?  If you are using RAD, you may have
additional test environments available to you for
testing.

FWIW/HTH,
Matt

--- Stewart Alan <ASt...@wo...> wrote:

> Hi,
> We're using Morph to do 2-way transformations
> between our domain objects
> and data transfer objects.  My application works
> perfectly when deployed
> to a Tomcat 5.5 or Jboss 4.0 server, but the exact
> same WAR deployed to
> WebSphere 6.1.0.3 gives me an error when I try to do
> a transformation:
>=20
> Could not find a transformer that can transform
> objects of (class
> java.lang.String) to objects of (class
> java.lang.String)
>=20
> Could this be a class-loading issue?
>=20
> Thanks
> Alan
>=20
>
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