Hi,
I jus tried this. I created another folder under webapps and the tree
structure is as below.
Download1--
--WEB-INF/web.xml
--WEB-INF/classes/com/deepa/servlet/DownloadFiles.class
--WEB-INF/lib
Download1 is under webapps folder.
But after trying this too i am getting the same error. The web.xml is shown
below.
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd";>
<web-app>
<display-name>Tomcat Documentation</display-name>
<description>
Tomcat Documentation.
</description>
<servlet>
<servlet-name>DownloadFiles</servlet-name>
<servlet-class>com.deepa.servlet.DownloadFiles</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>DownloadFiles</servlet-name>
<url-pattern>/servlet/DownloadFiles</url-pattern>
</servlet-mapping>
</web-app>
Here is a error logs file:
2006-02-01 10:15:18 StandardWrapperValve[DownloadFiles]: Servlet
DownloadFiles is currently unavailable
2006-02-01 10:15:28 StandardWrapperValve[DownloadFiles]: Servlet DownloadFiles
is currently unavailable
2006-02-01 10:28:45 StandardContext[/jsp-examples]ContextListener:
attributeReplaced('org.apache.catalina.WELCOME_FILES',
'[Ljava.lang.String;@c6f734')
2006-02-01 10:28:45 StandardContext[/jsp-examples]ContextListener:
attributeReplaced('org.apache.catalina.WELCOME_FILES',
'[Ljava.lang.String;@8f9a32')
2006-02-01 10:28:45 StandardContext[/jsp-examples]ContextListener:
attributeReplaced('org.apache.catalina.WELCOME_FILES',
'[Ljava.lang.String;@1d47b2b')
2006-02-01 10:28:45 StandardContext[/jsp-examples]SessionListener:
contextDestroyed()
2006-02-01 10:28:45 StandardContext[/jsp-examples]ContextListener:
contextDestroyed()
2006-02-01 10:28:45 StandardContext[/servlets-examples]ContextListener:
attributeReplaced('org.apache.catalina.WELCOME_FILES',
'[Ljava.lang.String;@1aa2c23')
2006-02-01 10:28:45 StandardContext[/servlets-examples]ContextListener:
attributeReplaced('org.apache.catalina.WELCOME_FILES',
'[Ljava.lang.String;@137d4a4')
2006-02-01 10:28:45 StandardContext[/servlets-examples]ContextListener:
attributeReplaced('org.apache.catalina.WELCOME_FILES',
'[Ljava.lang.String;@6963d0')
2006-02-01 10:28:45 StandardContext[/servlets-examples]SessionListener:
contextDestroyed()
2006-02-01 10:28:45 StandardContext[/servlets-examples]ContextListener:
contextDestroyed()
2006-02-01 10:28:54
StandardContext[/balancer]org.apache.webapp.balancer.BalancerFilter: init():
ruleChain: [org.apache.webapp.balancer.RuleChain:
[org.apache.webapp.balancer.rules.URLStringMatchRule: Target string: News /
Redirect URL: http://www.cnn.com],
[org.apache.webapp.balancer.rules.RequestParameterRule: Target param name:
paramName / Target param value: paramValue / Redirect URL:
http://www.yahoo.com], [org.apache.webapp.balancer.rules.AcceptEverythingRule:
Redirect URL: http://jakarta.apache.org]]
2006-02-01 10:28:54 StandardContext[/jsp-examples]SessionListener:
contextInitialized()
2006-02-01 10:28:54 StandardContext[/servlets-examples]SessionListener:
contextInitialized()
2006-02-01 10:29:25 StandardContext[/Download1]Marking servlet DownloadFiles as
unavailable
2006-02-01 10:29:25 StandardWrapperValve[DownloadFiles]: Allocate exception for
servlet DownloadFiles
javax.servlet.ServletException: Error instantiating servlet class
com.deepa.servlet.DownloadFiles at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:996)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:687)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:144)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.core.StandardValveContext.invokeNext at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
----- Root Cause -----
java.lang.NullPointerException
at com.deepa.servlet.DownloadFiles.<init>(DownloadFiles.java:32)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:494)
at java.lang.Class.newInstance0(Class.java:350)
at java.lang.Class.newInstance(Class.java:303)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:987)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:687)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:144)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:118)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
at java.lang.Thread.run(Thread.java:595)
2006-02-01 10:29:29 StandardWrapperValve[DownloadFiles]: Servlet
DownloadFiles is currently unavailable
Pls let me wat might be the problem.
deepa
---------------------------------
Jiyo cricket on Yahoo! India cricket
