geronimo-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From MoleSon <sascha.gebha...@t-online.de>
Subject Re: ClassCastException when using a self written TypeConverter
Date Mon, 09 Jul 2007 09:41:17 GMT

I just saw, that I made an mistake when deploying the app: I forgot to update
the deployment plan so that the typeconverter was not listed. This means:
deploying doesn't work at all.

@Gianny: there is no MultiParentClassLoader, but there is a variable called
cl which is a JarFileClassLoader and the id of this one is:
default/<myAppName>/1.0/car

I also tried out geronimo 2.0 but when I deploy my app, i get a
NullPointerException without any serious information why it is thrown. I
also was not able to make eclipse debug geronimo 2.0 so I'll stay with to
1.1 version for now and need to get my problems fixed there.


MoleSon wrote:
> 
> I managed to deploy my application now by adding the tranql jar to my ear
> file, but this threw up a bunch of new errors now, so i'll follow your
> suggestion to update to the new geronimo version ;)
> 
> Manu George wrote:
>> 
>> I remember facing a similar issue and I think that there is a bug with
>> the TypeConverter stuff in OpenEJB. I would second Gianny's advice to
>> use Geronimo 2.0 and OEJB 3.0 and get back if there are issues there.
>> 
>> Regards
>> Manu
>> 
>> On 7/5/07, Gianny Damour <gianny.damour@optusnet.com.au> wrote:
>>> On 05/07/2007, at 10:34 PM, MoleSon wrote:
>>>
>>> > Could not deploy module
>>> > org.apache.geronimo.common.DeploymentException: Could not deploy
>>> > module
>>> >       ...
>>> > Caused by: org.apache.geronimo.common.DeploymentException: Cannot
>>> > create
>>> > type converter mypackage.MyTypeConverter
>>> >       at
>>> > org.openejb.deployment.SchemataBuilder.processEnterpriseBeans
>>> > (SchemataBuilder.java:436)
>>> >       ... 32 more
>>> > Caused by: java.lang.ClassCastException: mypackage.MyTypeConverter
>>> >       at
>>> > org.openejb.deployment.SchemataBuilder.processEnterpriseBeans
>>> > (SchemataBuilder.java:434)
>>> >       ... 33 more
>>> >
>>> > I had a look at the geronimo source code and notices that the
>>> > Exception is
>>> > thrown at these lines in the ScemataBuilder:
>>> > try
>>> > {
>>> >       Class typeConverterClass = cl.loadClass(mapping.getTypeConverter
>>> > ().trim());
>>> >       typeConverter = (TypeConverter)typeConverterClass.newInstance();
>>> > }
>>> > catch(Exception e)
>>> > {
>>> >       throw new DeploymentException("Cannot create type converter " +
>>> > mapping.getTypeConverter(), e);
>>> > }
>>>
>>> It is hard to diagnostic. Could you please put a breakpoint after
>>> cl.loadClass and tell us what the value of MultiParentClassLoader.id
>>> is? Also, I strongly recommend you to migrate to the latest version
>>> of Geronimo/OpenEJB, which uses OpenJPA as the underlying persistence
>>> framework for CMPs. This migration should be "effortless" as you do
>>> not need to change your OpenEJB deployment descriptors. Furthermore,
>>> you will also be able to leverage the simplified programming model of
>>> EJB3.
>>>
>>> Thanks,
>>> Gianny
>>>
>>>
>>>
>> 
>> 
> 
> 

-- 
View this message in context: http://www.nabble.com/ClassCastException-when-using-a-self-written-TypeConverter-tf4029440s134.html#a11498758
Sent from the Apache Geronimo - Users mailing list archive at Nabble.com.


Mime
View raw message