Make sure com.mycompany.model.User has non-args public constructor.

On Thu, Jul 8, 2010 at 12:49, Halil Karakose <halilkarak...@gmail.com>wrote:

> Changing javassist jar didn't work. I still receive the errors.
>
> By the way, the exception is thrown by
> "org.hibernate.tuple.entity.PojoEntityTuplizer".
> Is there a incompatibility with the hibernate jars?
>
> One more issue is that the logging level of the stack trace is in WARN
> level. And I still haven't encountered anything weird in runtime.
>
> On Thu, Jul 1, 2010 at 9:50 AM, Joachim Van der Auwera <joac...@progs.be
> >wrote:
>
> > I think you should update the javassist in jboss/server/default/lib/
> > folder.
> >
> > Joachim
> >
> >
> > On 07/01/2010 08:08 AM, Halil Karakose wrote:
> >
> >> Hi,
> >> I receive an error in my Tapestry webapp. I use Tapestry 5.1.0.5 and
> Jboss
> >> 4.2.3-GA.
> >>
> >>
> >> *Scenario 1:*
> >> My web application contains javassist 3.9.0.GA in WEB-INF/lib folder.
> And
> >> there is also another javassist.jar(3.6.0.GA) file inside
> >> jboss/server/default/lib folder.
> >>
> >> During deployment of the web application, I receive such an exception:
> >>
> >> 22:12:28,373 WARN  buildProxyFactory
> >> [org.hibernate.tuple.entity.PojoEntityTuplizer] could not create proxy
> >> factory for:com.mycompany.model.User
> >> org.hibernate.HibernateException: Javassist Enhancement failed:
> >> com.mycompany.model.User
> >>     at
> >>
> >>
> org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxyFactory(JavassistLazyInitializer.java:145)
> >>     at
> >>
> >>
> org.hibernate.proxy.pojo.javassist.JavassistProxyFactory.postInstantiate(JavassistProxyFactory.java:42)
> >>     at
> >>
> >>
> org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:162)
> >>     at
> >>
> >>
> org.hibernate.tuple.entity.AbstractEntityTuplizer.<init>(AbstractEntityTuplizer.java:135)
> >>     at
> >>
> >>
> org.hibernate.tuple.entity.PojoEntityTuplizer.<init>(PojoEntityTuplizer.java:55)
> >>     at
> >>
> >>
> org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.<init>(EntityEntityModeToTuplizerMapping.java:56)
> >>     at
> >>
> >>
> org.hibernate.tuple.entity.EntityMetamodel.<init>(EntityMetamodel.java:302)
> >> Caused by: java.lang.RuntimeException:
> java.lang.IllegalArgumentException:
> >> Can not set static javassist.util.proxy.MethodFilter field
> >> com.mycompany.model.User_$$_javassist_5._method_filter to
> >> org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer$1
> >>     at javassist.util.proxy.ProxyFactory.setField(ProxyFactory.java:356)
> >>     at
> >> javassist.util.proxy.ProxyFactory.createClass3(ProxyFactory.java:339)
> >>     at
> >> javassist.util.proxy.ProxyFactory.createClass2(ProxyFactory.java:312)
> >>     at
> >> javassist.util.proxy.ProxyFactory.createClass(ProxyFactory.java:271)
> >>     at
> >>
> >>
> org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.getProxyFactory(JavassistLazyInitializer.java:138)
> >>     ... 171 more
> >>
> >>
> >> This error doesn't prevent deployment. And I have no idea what the
> impact
> >> of
> >> this error is or will be. I can select, and insert via webapp.
> >>
> >>
> >> *Scenario 2:*
> >> If I exclude javassist 3.9.0.GA from my Tapestry webapp and leave
> jboss's
> >> javassist.jar in place, the application deploys without exception. But,
> in
> >> this case, I encounter an exception in runtime:
> >>
> >> org.apache.tapestry5.internal.services.TransformationException:
> >> javassist.CannotCompileException: broken method
> >>
> >> InternalClassTransformation[
> >>
> >> public com.mycompany.webapp.pages.PasswordHint extends
> >> com.mycompany.webapp.pages.BasePage
> >>
> >>
> >>
> >> add method: private void _$write_logger_2(org.slf4j.Logger $1)
> >>
> >> throw new java.lang.RuntimeException("Field
> >> com.mycompany.webapp.pages.PasswordHint.logger is read-only.");
> >>
> >>
> >>
> >> replace write logger: _$write_logger_2();
> >> ..........
> >>
> >>
> >> I am now following scenario 1, and I have not faced anything weird in
> >> runtime? Any suggestions are appreciated:),
> >>
> >>
> >> Thanks...
> >>
> >
>



-- 
Dmitry Gusev

AnjLab Team
http://anjlab.com

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