DataSource EclipseLink para Tomcat 7

Galera,

Estou tentando configurar um DataSource no Tomcat, mas tá tenso.
Não sei se errei nas libs ou na criação em sí do datasource.

Fiz o seguinte, no eclipse, criei uma user library do eclipselink com todos os jars.
Depois, criei o context.xml em webContent/META-INF:

<?xml version="1.0" encoding="UTF-8"?>
<Context>
    <ResourceLink
        name="jdbc/fidelityDS"
        global="jdbc/fidelityDS" />
</Context>

No server.xml:

  <GlobalNamingResources>
    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users
    -->
    <Resource auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users.xml" type="org.apache.catalina.UserDatabase"/>
  	<Resource auth="Container" driverClassName="com.mysql.jdbc.Driver" maxActive="10" maxIdle="3" maxWait="10000" name="jdbc/fidelityDS" password="root" type="javax.sql.DataSource" url="jdbc:mysql://localhost:3306/fidelity" username="root"/>
  </GlobalNamingResources>

No persistence.xml

<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.0"
	xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
	
    <persistence-unit name="FidelityPU" transaction-type="RESOURCE_LOCAL">
   	<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>  
    <jta-data-source>java:comp/env/jdbc/fidelityDS</jta-data-source>
	
		<class>br.com.fidelity.entidade.CentroCusto</class>
		<class>br.com.fidelity.entidade.Cidade</class>
		<class>br.com.fidelity.entidade.Cliente</class>
		<class>br.com.fidelity.entidade.Estado</class>
		<class>br.com.fidelity.entidade.Fatura</class>
		<class>br.com.fidelity.entidade.Funcionario</class>
		<class>br.com.fidelity.entidade.Lote</class>
		<class>br.com.fidelity.entidade.LotePesquisa</class>
		<class>br.com.fidelity.entidade.Pagamento</class>
		<class>br.com.fidelity.entidade.Pendencia</class>
		<class>br.com.fidelity.entidade.Pesquisa</class>
		<class>br.com.fidelity.entidade.Profissional</class>
		<class>br.com.fidelity.entidade.Projeto</class>
		<class>br.com.fidelity.entidade.Resultado</class>
		<class>br.com.fidelity.entidade.Servico</class>
		<class>br.com.fidelity.entidade.ServicoCliente</class>
		<class>br.com.fidelity.entidade.Usuario</class>
		<class>br.com.fidelity.entidade.UsuarioCliente</class>

		<!--properties>
			<property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/fidelity" />
			<property name="javax.persistence.jdbc.user" value="root" />
			<property name="javax.persistence.jdbc.password" value="root" />
			<property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
		</properties -->

	</persistence-unit>
</persistence>

No web.xml

<resource-ref>  
        <description>DB Connection</description>  
        <res-ref-name>jdbc/fidelityDS</res-ref-name>  
        <res-type>javax.sql.DataSource</res-type>  
        <res-auth>Container</res-auth>  
    </resource-ref> 

Porém, gera o seguinte erro quando cai no DAO:

WARNING: #{loginController.efetuaLogin()}: java.lang.NoClassDefFoundError: javax/persistence/Persistence
javax.faces.FacesException: #{loginController.efetuaLogin()}: java.lang.NoClassDefFoundError: javax/persistence/Persistence
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:117)
	at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
Caused by: javax.faces.el.EvaluationException: java.lang.NoClassDefFoundError: javax/persistence/Persistence
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
	... 23 more
Caused by: java.lang.NoClassDefFoundError: javax/persistence/Persistence
	at br.com.fidelity.dao.usuario.UsuarioDao.findUsuarioPorCPFESenha(UsuarioDao.java:30)
	at br.com.fidelity.business.usuario.UsuarioBusiness.findUsuarioPorCPFESenha(UsuarioBusiness.java:12)
	at br.com.fidelity.managedBean.Login.LoginController.efetuaLogin(LoginController.java:25)
	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:601)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
	... 24 more
Caused by: java.lang.ClassNotFoundException: javax.persistence.Persistence
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	... 35 more

Mai 25, 2013 4:55:24 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/Fidelity] threw exception [java.lang.NoClassDefFoundError: javax/persistence/Persistence] with root cause
java.lang.ClassNotFoundException: javax.persistence.Persistence
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	at br.com.fidelity.dao.usuario.UsuarioDao.findUsuarioPorCPFESenha(UsuarioDao.java:30)
	at br.com.fidelity.business.usuario.UsuarioBusiness.findUsuarioPorCPFESenha(UsuarioBusiness.java:12)
	at br.com.fidelity.managedBean.Login.LoginController.efetuaLogin(LoginController.java:25)
	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:601)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
	at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)

Mai 25, 2013 4:59:29 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/Fidelity] has started
Mai 25, 2013 4:59:30 PM org.apache.catalina.core.StandardContext addApplicationListener
INFO: The listener "com.sun.faces.config.ConfigureListener" is already configured for this context. The duplicate definition has been ignored.
Mai 25, 2013 4:59:30 PM com.sun.faces.config.ConfigureListener contextInitialized
INFO: Inicializando Mojarra 2.1.22 ( 20130508-2000 https://svn.java.net/svn/mojarra~svn/tags/2.1.22@11945) para o contexto '/Fidelity'
Mai 25, 2013 4:59:30 PM com.sun.faces.spi.InjectionProviderFactory createInstance
INFO: JSF1048: Anotações PostConstruct/PreDestroy presentes.  Os métodos ManagedBeans marcados com essas anotações informarão as anotações processadas.
Mai 25, 2013 4:59:31 PM org.primefaces.webapp.PostConstructApplicationEventListener processEvent
INFO: Running on PrimeFaces 3.5
Mai 25, 2013 4:59:31 PM org.apache.catalina.core.StandardContext reload
INFO: Reloading Context with name [/Fidelity] is completed
Entro no phase listener
Entro no phase listener
Entro no efetua Login
entro no dao
Mai 25, 2013 4:59:41 PM com.sun.faces.lifecycle.InvokeApplicationPhase execute
WARNING: #{loginController.efetuaLogin()}: java.lang.NoClassDefFoundError: javax/persistence/Persistence
javax.faces.FacesException: #{loginController.efetuaLogin()}: java.lang.NoClassDefFoundError: javax/persistence/Persistence
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:117)
	at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)
Caused by: javax.faces.el.EvaluationException: java.lang.NoClassDefFoundError: javax/persistence/Persistence
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:101)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
	... 23 more
Caused by: java.lang.NoClassDefFoundError: javax/persistence/Persistence
	at br.com.fidelity.dao.usuario.UsuarioDao.findUsuarioPorCPFESenha(UsuarioDao.java:30)
	at br.com.fidelity.business.usuario.UsuarioBusiness.findUsuarioPorCPFESenha(UsuarioBusiness.java:12)
	at br.com.fidelity.managedBean.Login.LoginController.efetuaLogin(LoginController.java:25)
	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:601)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
	... 24 more
Caused by: java.lang.ClassNotFoundException: javax.persistence.Persistence
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	... 35 more

Mai 25, 2013 4:59:41 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet [Faces Servlet] in context with path [/Fidelity] threw exception [java.lang.NoClassDefFoundError: javax/persistence/Persistence] with root cause
java.lang.ClassNotFoundException: javax.persistence.Persistence
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
	at br.com.fidelity.dao.usuario.UsuarioDao.findUsuarioPorCPFESenha(UsuarioDao.java:30)
	at br.com.fidelity.business.usuario.UsuarioBusiness.findUsuarioPorCPFESenha(UsuarioBusiness.java:12)
	at br.com.fidelity.managedBean.Login.LoginController.efetuaLogin(LoginController.java:25)
	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:601)
	at org.apache.el.parser.AstValue.invoke(AstValue.java:278)
	at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:274)
	at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)
	at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)
	at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:101)
	at javax.faces.component.UICommand.broadcast(UICommand.java:315)
	at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:786)
	at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1251)
	at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1008)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:722)

Não consigo localizar o erro, alguém pode auxiliar?