Actually this is the default Appfuse User class. And the class has no-arg
constructor.
I've been debuggin jboss now. During jboss startup,
javassist.util.proxy.ProxyFactory.setField() method throws the exception in
the following highlighted line.
private void setField(String fieldName, Object value) {
if(thisClass != null && value != null)
try { Field f = thisClass.getField(fieldName);
SecurityActions.setAccessible(f, true);
*f.set(null, value);*
SecurityActions.setAccessible(f, false);
}
catch(Exception e) {
throw new RuntimeException(e);
}
}
*
Values Of setField() Parameters:*
value= instance of
"org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer"
fieldName="_method_filter"
In the highlighted line, JavassistLazyInitializer cannot be set to null.
If I set a breakpoint to the highlighted line and set the
JavassistLazyInitializer instance to null, exception does not occur.
On Thu, Jul 8, 2010 at 11:58 AM, Dmitry Gusev <dmitry.gu...@gmail.com>wrote:
> 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
>
