The wierdest thing

Hi,

I'm doing this J2EE aplication using JBoss AS , JBoss IDE and Eclipse. In th
e aplication jar a have
a Stateless Bean that uses an instance of a value object class named EntityF
ield. Well, I already
run the aplication before with no problem, but today I added a Message Drive
n Bean named SimpleBean.
I redeployed it with no error , but when I try to run the client it throws a
n exception saying the
EntityField class was not found.
This is wierd has I've not altered the class and both the class and the stat
less bean are in the
same jar (and so if the bean is found also should the class). I have already
 redepoyed several times
, renamed the class , added the classified name of the class ... I've looked
 into the jar and the
class is there with the correct name and package. Have found no solution.

What do you think ?



The exception stacktrace is:



Caused by: java.lang.NoClassDefFoundError: com/ethica/efw/common/entities/En
tityField
at
com.ethica.efw.server.servicebeans.DictionaryEditonServiceBean.readEntityFie
lds(DictionaryEditonServiceBean.java:187)
at
com.ethica.efw.server.servicebeans.DictionaryEditonServiceBean.findAllEntiti
esMetaData(DictionaryEditonServiceBean.java:145)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java
:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorI
mpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.jboss.ejb. StatelessSessionContainer$ContainerInter
ceptor.invoke(Stateles
sSessionContainer.java:683)
at
org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(Cach
edConnectionInterceptor.java:185)
at
org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSe
ssionInstanceInterceptor.java:72)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxIntercep
tor.java:84)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorC
MT.java:267)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java
:118)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
.. 21 more

Hello,

I found the problem. The class has implementing a interface outisde the jar 
file.
Thank you.