Não estou conseguindo listar os dados da conta segue o erro do console

Set 23, 2014 8:07:52 PM org.apache.catalina.core.AprLifecycleListener init
INFORMAÇÕES: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre1.8.0_20/bin/server;C:/Program Files/Java/jre1.8.0_20/bin;C:/Program Files/Java/jre1.8.0_20/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Program Files\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Program Files (x86)\EasyPHP-DevServer-13.1VC11\binaries\php\php_runningversion;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Windows Live\Shared;C:\WINDOWS\system32;C:\WINDOWS;;C:\eclipse;;.
Set 23, 2014 8:07:52 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
ADVERTÊNCIA: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:contas' did not find a matching property.
Set 23, 2014 8:07:53 PM org.apache.coyote.AbstractProtocol init
INFORMAÇÕES: Initializing ProtocolHandler ["http-bio-8080"]
Set 23, 2014 8:07:53 PM org.apache.coyote.AbstractProtocol init
INFORMAÇÕES: Initializing ProtocolHandler ["ajp-bio-8009"]
Set 23, 2014 8:07:53 PM org.apache.catalina.startup.Catalina load
INFORMAÇÕES: Initialization processed in 1826 ms
Set 23, 2014 8:07:53 PM org.apache.catalina.core.StandardService startInternal
INFORMAÇÕES: Starting service Catalina
Set 23, 2014 8:07:53 PM org.apache.catalina.core.StandardEngine startInternal
INFORMAÇÕES: Starting Servlet Engine: Apache Tomcat/7.0.55
Set 23, 2014 8:07:55 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFORMAÇÕES: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [1,079] milliseconds.
Set 23, 2014 8:08:03 PM org.apache.catalina.core.ApplicationContext log
INFORMAÇÕES: No Spring WebApplicationInitializer types detected on classpath
Set 23, 2014 8:08:03 PM org.apache.coyote.AbstractProtocol start
INFORMAÇÕES: Starting ProtocolHandler ["http-bio-8080"]
Set 23, 2014 8:08:03 PM org.apache.coyote.AbstractProtocol start
INFORMAÇÕES: Starting ProtocolHandler ["ajp-bio-8009"]
Set 23, 2014 8:08:03 PM org.apache.catalina.startup.Catalina start
INFORMAÇÕES: Server startup in 10175 ms
20:12:39,046  INFO DispatcherServlet:479 - FrameworkServlet 'spring mvc': initialization started
20:12:39,108  INFO XmlWebApplicationContext:513 - Refreshing WebApplicationContext for namespace 'spring mvc-servlet': startup date [Tue Sep 23 20:12:39 GMT-03:00 2014]; root of context hierarchy
20:12:39,238  INFO XmlBeanDefinitionReader:316 - Loading XML bean definitions from ServletContext resource [/WEB-INF/spring-context.xml]
Set 23, 2014 8:12:39 PM org.apache.catalina.core.ApplicationContext log
INFORMAÇÕES: Initializing Spring FrameworkServlet 'spring mvc'
20:12:40,600  INFO RequestMappingHandlerMapping:197 - Mapped "{[/form],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String br.com.caelum.contas.controller.ContaController.formulario()
20:12:40,601  INFO RequestMappingHandlerMapping:197 - Mapped "{[/listaContas],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.portlet.ModelAndView br.com.caelum.contas.controller.ContaController.lista()
20:12:40,602  INFO RequestMappingHandlerMapping:197 - Mapped "{[/adicionaConta],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String br.com.caelum.contas.controller.ContaController.adciona(br.com.caelum.contas.modelo.Conta)
20:12:40,604  INFO RequestMappingHandlerMapping:197 - Mapped "{[/tabelas],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String br.com.caelum.contas.controller.InfraController.criaBanco() throws java.sql.SQLException
20:12:40,605  INFO RequestMappingHandlerMapping:197 - Mapped "{[/olaMundoSpring],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public java.lang.String br.com.caelum.contas.controller.OlaMundoController.execute()
20:12:41,267  INFO DispatcherServlet:498 - FrameworkServlet 'spring mvc': initialization completed in 2215 ms
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