EJB Bean - Hibernate

Cześć. Na początek stacktrace:

Warning:   StandardWrapperValve[AuthorServlet]: Servlet.service() for servlet AuthorServlet threw exception
javax.ejb.EJBException
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Caused by: java.util.ServiceConfigurationError: org.hibernate.boot.registry.selector.StrategyRegistrationProvider: Provider org.hibernate.c3p0.internal.StrategyRegistrationProviderImpl not found
	at java.util.ServiceLoader.fail(ServiceLoader.java:231)
	at java.util.ServiceLoader.access$300(ServiceLoader.java:181)
	at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:365)
	at java.util.ServiceLoader$1.next(ServiceLoader.java:445)
	at org.hibernate.boot.registry.classloading.internal.ClassLoaderServiceImpl.loadJavaServices(ClassLoaderServiceImpl.java:324)
	at org.hibernate.boot.registry.selector.internal.StrategySelectorBuilder.buildSelector(StrategySelectorBuilder.java:162)
	at org.hibernate.boot.registry.BootstrapServiceRegistryBuilder.build(BootstrapServiceRegistryBuilder.java:222)
	at org.hibernate.cfg.Configuration.<init>(Configuration.java:119)
	at pl.edu.pk.utils.HibernateUtils.createSessionFactory(HibernateUtils.java:24)
	at pl.edu.pk.utils.HibernateUtils.getSessionFactory(HibernateUtils.java:33)
	at pl.edu.pk.daos.AuthorDao.getAllAuthors(AuthorDao.java:44)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.glassfish.ejb.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1081)
	at org.glassfish.ejb.security.application.EJBSecurityManager.invoke(EJBSecurityManager.java:1153)
	at com.sun.ejb.containers.BaseContainer.invokeBeanMethod(BaseContainer.java:4786)
	at com.sun.ejb.EjbInvocation.invokeBeanMethod(EjbInvocation.java:656)
	at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
	at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
	at org.jboss.weld.ejb.AbstractEJBRequestScopeActivationInterceptor.aroundInvoke(AbstractEJBRequestScopeActivationInterceptor.java:55)
	at org.jboss.weld.ejb.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:52)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
	at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
	at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:608)
	at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.doCall(SystemInterceptorProxy.java:163)
	at com.sun.ejb.containers.interceptors.SystemInterceptorProxy.aroundInvoke(SystemInterceptorProxy.java:140)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at com.sun.ejb.containers.interceptors.AroundInvokeInterceptor.intercept(InterceptorManager.java:883)
	at com.sun.ejb.containers.interceptors.AroundInvokeChainImpl.invokeNext(InterceptorManager.java:822)
	at com.sun.ejb.containers.interceptors.InterceptorManager.intercept(InterceptorManager.java:369)
	at com.sun.ejb.containers.BaseContainer.__intercept(BaseContainer.java:4758)
	at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4746)
	at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:205)
	... 49 more

Mam część bazodanową aplikacji jako bean ejb, wszystkie paczki hibernate sa w classpath-ie (lacznie z org.hibernate.c3p0. widocznym w stacktrace). Bean jest deploy-owany na glassfishu.
Wszystko przestało działać gdy część bazodanową przeniosłem do remote beana, a w kliencie wolam metody modyfikujace baze danych.
Trochę straciłem pomysl, co może być jeszcze nie tak ?