Erro ao iniciar Tomcat/Aplicação

Out 31, 2011 11:26:57 AM 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:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\MySQL\MySQL Server 5.1\bin;C:\Program Files\MySQL\MySQL Server 5.5\bin;C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;.
Out 31, 2011 11:26:57 AM org.apache.tomcat.util.digester.SetPropertiesRule begin
Advertência: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.j2ee.server:CtrVendasOnline' did not find a matching property.
Out 31, 2011 11:26:58 AM org.apache.coyote.http11.Http11Protocol init
Informações: Initializing Coyote HTTP/1.1 on http-8080
Out 31, 2011 11:26:58 AM org.apache.catalina.startup.Catalina load
Informações: Initialization processed in 1468 ms
Out 31, 2011 11:26:58 AM org.apache.catalina.core.StandardService start
Informações: Starting service Catalina
Out 31, 2011 11:26:58 AM org.apache.catalina.core.StandardEngine start
Informações: Starting Servlet Engine: Apache Tomcat/6.0.32
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.inputDate.listener.InputDateListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.inputMask.listener.InputMaskListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.inputMoney.listener.InputMoneyListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.tabPanel.listener.TabPanelListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.formSkin.listener.FormSkinListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.selectBox.listener.SelectBoxListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.stats.listener.StatsListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.dyntag.menu.listener.MenuListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext addApplicationListener
Informações: The listener "org.mentawai.tag.html.ajax.listener.AjaxListener" is already configured for this context. The duplicate definition has been ignored.
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext filterStart
Grave: Exception starting filter FiltroSeguranca
java.lang.ClassNotFoundException: segurança.FiltroSeguranca
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1680)
	at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1526)
	at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:269)
	at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:422)
	at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:115)
	at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4071)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4725)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:840)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463)
	at org.apache.catalina.core.StandardService.start(StandardService.java:525)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:754)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:595)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)

Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext start
Grave: Error filterStart
Out 31, 2011 11:26:59 AM org.apache.catalina.core.StandardContext start
Grave: Context [/CtrVendasOnline] startup failed due to previous errors
Out 31, 2011 11:26:59 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
Grave: The web application [/CtrVendasOnline] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.
Out 31, 2011 11:26:59 AM org.apache.coyote.http11.Http11Protocol start
Informações: Starting Coyote HTTP/1.1 on http-8080
Out 31, 2011 11:26:59 AM org.apache.jk.common.ChannelSocket init
Informações: JK: ajp13 listening on /0.0.0.0:8009
Out 31, 2011 11:26:59 AM org.apache.jk.server.JkMain start
Informações: Jk running ID=0 time=1/49  config=null
Out 31, 2011 11:26:59 AM org.apache.catalina.startup.Catalina start
Informações: Server startup in 1389 ms