Tomcat can not find requested sources error msg as bellow.

tomcat can not find requested sources, error msg as bellow, could some one please help me out from this I am frustrated.
Thanks.

Using CATALINA_BASE: C:\Documents and Settings\BhowmikB\.netbeans\6.7rc1\apache-tomcat-6.0.18_base
Using CATALINA_HOME: C:\Program Files\Apache Software Foundation\Apache Tomcat 6.0.18
Using CATALINA_TMPDIR: C:\Documents and Settings\BhowmikB\.netbeans\6.7rc1\apache-tomcat-6.0.18_base\temp
Using JRE_HOME: C:\Program Files\Java\jdk1.6.0_13
4-Jun-2009 1:07:40 PM org.apache.catalina.core.AprLifecycleListener init
INFO: 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\jdk1.6.0_13\bin;.;C:\WINDOWS\Sun\Java\b in;C:\WINDOWS\system32;C:\WINDOWS;C:\oracle\produc t\10.2.0\client_2;C:\oracle\product\10.2.0\client_ 1\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\Sy stem32\Wbem;C:\Program Files\ATI Technologies\ATI Control Panel;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Sun\SDK\bin
4-Jun-2009 1:07:40 PM org.apache.coyote.http11.Http11Protocol init
INFO: Initializing Coyote HTTP/1.1 on http-8084
4-Jun-2009 1:07:40 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 947 ms
4-Jun-2009 1:07:40 PM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
4-Jun-2009 1:07:40 PM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/6.0.18
4-Jun-2009 1:07:46 PM com.sun.faces.config.ConfigureListener contextInitialized
INFO: Initializing Sun's JavaServer Faces implementation (1.2_04-b20-p03) for context '/IceGraph102'
4-Jun-2009 1:07:46 PM com.sun.faces.config.DigesterFactory configureDigester
WARNING: Attempt to set unsupported feature on XMLReader necessary for validation. Validation will bedisabled.
4-Jun-2009 1:07:46 PM org.apache.struts.faces.application.ActionListener Impl <init>
INFO: Create ActionListener wrapping instance of type 'com.sun.faces.application.ActionListenerImpl'
4-Jun-2009 1:07:47 PM org.apache.struts.action.ActionServlet initChain
INFO: Loading chain catalog from jar:file:/C:/Documents%20and%20Settings/BhowmikB/Desktop/IceGraph102/web/build/web/WEB-INF/lib/struts-core-1.3.8.jar!/org/apache/struts/chain/chain-config.xml
4-Jun-2009 1:07:48 PM org.apache.struts.tiles.TilesPlugin initDefinitionsFactory
INFO: Tiles definition factory loaded for module ''.
4-Jun-2009 1:07:48 PM org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validator-rules.xml'
4-Jun-2009 1:07:48 PM org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validation.xml'
4-Jun-2009 1:07:49 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8084
4-Jun-2009 1:07:49 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
4-Jun-2009 1:07:49 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/125 config=null
4-Jun-2009 1:07:49 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 9649 ms
4-Jun-2009 1:07:51 PM org.apache.catalina.startup.HostConfig checkResources
INFO: Undeploying context [/IceGraph102]
4-Jun-2009 1:07:53 PM com.sun.faces.config.ConfigureListener contextInitialized
INFO: Initializing Sun's JavaServer Faces implementation (1.2_04-b20-p03) for context '/IceGraph102'
4-Jun-2009 1:07:53 PM com.sun.faces.config.DigesterFactory configureDigester
WARNING: Attempt to set unsupported feature on XMLReader necessary for validation. Validation will bedisabled.
4-Jun-2009 1:07:53 PM org.apache.struts.faces.application.ActionListener Impl <init>
INFO: Create ActionListener wrapping instance of type 'com.sun.faces.application.ActionListenerImpl'
4-Jun-2009 1:07:53 PM org.apache.catalina.loader.WebappClassLoader loadClass
INFO: Illegal access: this web application instance has been stopped already. Could not load java.lang.Object. The eventual following stack trace is caused by an error thrown for debugging purposes as well as to attempt to terminate the thread which caused the illegal access, and has no functional impact.
java.lang.IllegalStateException
at org.apache.catalina.loader.WebappClassLoader.loadC lass(WebappClassLoader.java:1273)
at org.apache.catalina.loader.WebappClassLoader.loadC lass(WebappClassLoader.java:1233)
at com.sun.faces.application.ConverterPropertyEditorF actory$DisposableClassLoader.loadClass(ConverterPr opertyEditorFactory.java:447)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 52)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:320)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Cla ss.java:2389)
at java.lang.Class.getConstructor0(Class.java:2699)
at java.lang.Class.newInstance0(Class.java:326)
at java.lang.Class.newInstance(Class.java:30
at java.beans.PropertyEditorManager.findEditor(Proper tyEditorManager.java:79)
at com.sun.faces.application.ApplicationImpl.addPrope rtyEditorIfNecessary(ApplicationImpl.java:690)
at com.sun.faces.application.ApplicationImpl.addConve rter(ApplicationImpl.java:660)
at com.sun.faces.config.ConfigureListener.configure(C onfigureListener.java:727)
at com.sun.faces.config.ConfigureListener.configure(C onfigureListener.java:489)
at com.sun.faces.config.ConfigureListener.contextInit ialized(ConfigureListener.java:381)
at org.apache.catalina.core.StandardContext.listenerS tart(StandardContext.java:3843)
at org.apache.catalina.core.StandardContext.start(Sta ndardContext.java:4342)
at org.apache.catalina.core.ContainerBase.addChildInt ernal(ContainerBase.java:791)
at org.apache.catalina.core.ContainerBase.addChild(Co ntainerBase.java:771)
at org.apache.catalina.core.StandardHost.addChild(Sta ndardHost.java:525)
at org.apache.catalina.startup.HostConfig.deployDescr iptor(HostConfig.java:627)
at org.apache.catalina.startup.HostConfig.deployApps( HostConfig.java:511)
at org.apache.catalina.startup.HostConfig.check(HostC onfig.java:1231)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tomcat.util.modeler.BaseModelMBean.invo ke(BaseModelMBean.java:297)
at com.sun.jmx.interceptor.DefaultMBeanServerIntercep tor.invoke(DefaultMBeanServerInterceptor.java:836)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxM BeanServer.java:761)
at org.apache.catalina.manager.ManagerServlet.check(M anagerServlet.java:1471)
at org.apache.catalina.manager.ManagerServlet.deploy( ManagerServlet.java:824)
at org.apache.catalina.manager.ManagerServlet.doGet(M anagerServlet.java:350)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet .java:717)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.netbeans.modules.web.monitor.server.MonitorFil ter.doFilter(MonitorFilter.java:196)
at org.apache.catalina.core.ApplicationFilterChain.in ternalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.do Filter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invo ke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invo ke(StandardContextValve.java:191)
at org.apache.catalina.authenticator.AuthenticatorBas e.invoke(AuthenticatorBase.java:525)
at org.apache.catalina.core.StandardHostValve.invoke( StandardHostValve.java:12
at org.apache.catalina.valves.ErrorReportValve.invoke (ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invok e(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.servic e(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(H ttp11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11Conn ectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run( JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
4-Jun-2009 1:07:54 PM org.apache.struts.action.ActionServlet initChain
INFO: Loading chain catalog from jar:file:/C:/Documents%20and%20Settings/BhowmikB/Desktop/IceGraph102/web/build/web/WEB-INF/lib/struts-core-1.3.8.jar!/org/apache/struts/chain/chain-config.xml
4-Jun-2009 1:07:55 PM org.apache.struts.tiles.TilesPlugin initDefinitionsFactory
INFO: Tiles definition factory loaded for module ''.
4-Jun-2009 1:07:55 PM org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validator-rules.xml'
4-Jun-2009 1:07:55 PM org.apache.struts.validator.ValidatorPlugIn initResources
INFO: Loading validation rules file from '/WEB-INF/validation.xml'
4-Jun-2009 1:07:55 PM org.apache.catalina.core.StandardContext start
INFO: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/IceGraph102] has already been started

bakul bhowmik