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Date: Mon, 17 Sep 2007 11:41:53 -0700 (PDT)
From: bharatp80 <bharat_p80@hotmail.com>
To: users@tomcat.apache.org
Subject: HTTP status error 500 in tomcat 4.1.36
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Hello Everyone,

I am getting this error while loading the first test.jsp file after a fresh
windows 2000 server installation and new tomcat 4.1.36 and iis 5.0
configuration.

System configuration.

OS: windows 2000 server
Java : jdk 1.6.2
tomcat : 4.1.36
IIs : 5.0
all the required path ,javahome,catalinhome settings are done.


after installing and configuring tomcat 4.1.36 i tried my sample application
but i am getting following error message in internet explorer.....

HTTP Status 500 - 

--------------------------------------------------------------------------------

type Exception report

message 

description The server encountered an internal error () that prevented it
from fulfilling this request.

exception 

org.apache.jasper.JasperException
	at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:207)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:446)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
	at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
	at java.lang.Thread.run(Thread.java:619)


root cause 

java.lang.NullPointerException
	at org.apache.jsp.test_jsp._jspService(test_jsp.java:94)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:92)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:162)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:240)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:187)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
	at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
	at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:446)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
	at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
	at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
	at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
	at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
	at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
	at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
	at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:874)
	at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
	at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
	at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
	at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
	at java.lang.Thread.run(Thread.java:619)


--------------------------------------------------------------------------------

Apache Tomcat/4.1.36-LE-jdk14


------------------------------------------------------------------------------------------

The file test.jsp is in c:\intepub\wwwroot.

The server.xml file looks like....................
<!-- Example Server Configuration File -->
<!-- Note that component elements are nested corresponding to their
     parent-child relationships with each other -->

<!-- A "Server" is a singleton element that represents the entire JVM,
     which may contain one or more "Service" instances.  The Server
     listens for a shutdown command on the indicated port.

     Note:  A "Server" is not itself a "Container", so you may not
     define subcomponents such as "Valves" or "Loggers" at this level.
 -->

<Server port="8005" shutdown="SHUTDOWN" debug="0">


  <!-- Comment these entries out to disable JMX MBeans support -->
  <!-- You may also configure custom components (e.g. Valves/Realms) by
       including your own mbean-descriptor file(s), and setting the
       "descriptors" attribute to point to a ';' seperated list of paths
       (in the ClassLoader sense) of files to add to the default list.
       e.g. descriptors="/com/myfirm/mypackage/mbean-descriptor.xml"
  -->
  <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener"
            debug="0"/>
  <Listener
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
            debug="0"/>

  <!-- Global JNDI resources -->
  <GlobalNamingResources>

    <!-- Test entry for demonstration purposes -->
    <Environment name="simpleValue" type="java.lang.Integer" value="30"/>

    <!-- Editable user database that can also be used by
         UserDatabaseRealm to authenticate users -->
    <Resource name="UserDatabase" auth="Container"
              type="org.apache.catalina.UserDatabase"
       description="User database that can be updated and saved">
    </Resource>
    <ResourceParams name="UserDatabase">
      <parameter>
        <name>factory</name>
        <value>org.apache.catalina.users.MemoryUserDatabaseFactory</value>
      </parameter>
      <parameter>
        <name>pathname</name>
        <value>conf/tomcat-users.xml</value>
      </parameter>
    </ResourceParams>

  </GlobalNamingResources>

  <!-- A "Service" is a collection of one or more "Connectors" that share
       a single "Container" (and therefore the web applications visible
       within that Container).  Normally, that Container is an "Engine",
       but this is not required.

       Note:  A "Service" is not itself a "Container", so you may not
       define subcomponents such as "Valves" or "Loggers" at this level.
   -->

  <!-- Define the Tomcat Stand-Alone Service -->
  <Service name="Tomcat-Standalone">

    <!-- A "Connector" represents an endpoint by which requests are received
         and responses are returned.  Each Connector passes requests on to
the
         associated "Container" (normally an Engine) for processing.

         By default, a non-SSL HTTP/1.1 Connector is established on port
8080.
         You can also enable an SSL HTTP/1.1 Connector on port 8443 by
         following the instructions below and uncommenting the second
Connector
         entry.  SSL support requires the following steps (see the SSL
Config
         HOWTO in the Tomcat 4.0 documentation bundle for more detailed
         instructions):
         * Download and install JSSE 1.0.2 or later, and put the JAR files
           into "$JAVA_HOME/jre/lib/ext".
         * Execute:
             %JAVA_HOME%\bin\keytool -genkey -alias tomcat -keyalg RSA
(Windows)
             $JAVA_HOME/bin/keytool -genkey -alias tomcat -keyalg RSA 
(Unix)
           with a password value of "changeit" for both the certificate and
           the keystore itself.

         By default, DNS lookups are enabled when a web application calls
         request.getRemoteHost().  This can have an adverse impact on
         performance, so you can disable it by setting the
         "enableLookups" attribute to "false".  When DNS lookups are
disabled,
         request.getRemoteHost() will return the String version of the
         IP address of the remote client.
    -->

    <!-- Define a non-SSL Coyote HTTP/1.1 Connector on port 8081 -->
    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
               port="8080"
               enableLookups="true" redirectPort="8443"
               acceptCount="100" connectionTimeout="20000"
               useURIValidationHack="false" disableUploadTimeout="true" />
    <!-- Note : To disable connection timeouts, set connectionTimeout value 
     to 0 -->

    <!-- Define a SSL Coyote HTTP/1.1 Connector on port 8443 -->
    <!--
    <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
               port="8443" enableLookups="true" scheme="https" secure="true"
               acceptCount="100"
               useURIValidationHack="false" disableUploadTimeout="true"
               clientAuth="false" sslProtocol="TLS" />
    -->

    <!-- Define a Coyote AJP/1.3 Connector on port 8009 -->
   <Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
               port="8009" enableLookups="true" redirectPort="8443"
               connectionTimeout="0"
               useURIValidationHack="false"
              
protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/>


    <!-- An Engine represents the entry point (within Catalina) that
processes
         every request.  The Engine implementation for Tomcat stand alone
         analyzes the HTTP headers included with the request, and passes
them
         on to the appropriate Host (virtual host). -->

    <!-- You should set jvmRoute to support load-balancing via JK/JK2 ie :
    <Engine name="Standalone" defaultHost="localhost" debug="0"
jvmRoute="jvm1">
    -->

    <!-- Define the top level container in our container hierarchy -->
    <Engine name="Standalone" defaultHost="localhost" debug="0">

      <!-- The request dumper valve dumps useful debugging information about
           the request headers and cookies that were received, and the
response
           headers and cookies that were sent, for all requests received by
           this instance of Tomcat.  If you care only about requests to a
           particular virtual host, or a particular application, nest this
           element inside the corresponding <Host> or <Context> entry
instead.

           For a similar mechanism that is portable to all Servlet 2.3
           containers, check out the "RequestDumperFilter" Filter in the
           example application (the source for this filter may be found in
           "$CATALINA_HOME/webapps/examples/WEB-INF/classes/filters").

           Request dumping is disabled by default.  Uncomment the following
           element to enable it. -->
      <!--
      <Valve className="org.apache.catalina.valves.RequestDumperValve"/>
      -->

      <!-- Global logger unless overridden at lower levels -->
      <Logger className="org.apache.catalina.logger.FileLogger"
              prefix="catalina_log." suffix=".txt"
              timestamp="true"/>

      <!-- Because this Realm is here, an instance will be shared globally
-->

      <!-- This Realm uses the UserDatabase configured in the global JNDI
           resources under the key "UserDatabase".  Any edits
           that are performed against this UserDatabase are immediately
           available for use by the Realm.  -->
      <Realm className="org.apache.catalina.realm.UserDatabaseRealm"
                 debug="0" resourceName="UserDatabase"/>

      <!-- Comment out the old realm but leave here for now in case we
           need to go back quickly -->
      <!--
      <Realm className="org.apache.catalina.realm.MemoryRealm" />
      -->

      <!-- Replace the above Realm with one of the following to get a Realm
           stored in a database and accessed via JDBC -->

      <!--
      <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
             driverName="org.gjt.mm.mysql.Driver"
          connectionURL="jdbc:mysql://localhost/authority"
         connectionName="test" connectionPassword="test"
              userTable="users" userNameCol="user_name"
userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
      -->

      <!--
      <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
             driverName="oracle.jdbc.driver.OracleDriver"
          connectionURL="jdbc:oracle:thin:@ntserver:1521:ORCL"
         connectionName="scott" connectionPassword="tiger"
              userTable="users" userNameCol="user_name"
userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
      -->

      <!--
      <Realm  className="org.apache.catalina.realm.JDBCRealm" debug="99"
             driverName="sun.jdbc.odbc.JdbcOdbcDriver"
          connectionURL="jdbc:odbc:CATALINA"
              userTable="users" userNameCol="user_name"
userCredCol="user_pass"
          userRoleTable="user_roles" roleNameCol="role_name" />
      -->

      <!-- Define the default virtual host -->
      <Host name="localhost" debug="0" appBase="webapps" 
       unpackWARs="true" autoDeploy="true">

        <!-- Normally, users must authenticate themselves to each web app
             individually.  Uncomment the following entry if you would like
             a user to be authenticated the first time they encounter a
             resource protected by a security constraint, and then have that
             user identity maintained across *all* web applications
contained
             in this virtual host. -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn"
                   debug="0"/>
        -->

        <!-- Access log processes all requests for this virtual host.  By
             default, log files are created in the "logs" directory relative
to
             $CATALINA_HOME.  If you wish, you can specify a different
             directory with the "directory" attribute.  Specify either a
relative
             (to $CATALINA_HOME) or absolute path to the desired directory.
        -->
        <!--
        <Valve className="org.apache.catalina.valves.AccessLogValve"
                 directory="logs"  prefix="localhost_access_log."
suffix=".txt"
                 pattern="common" resolveHosts="false"/>
        -->

        <!-- Logger shared by all Contexts related to this virtual host.  By
             default (when using FileLogger), log files are created in the
"logs"
             directory relative to $CATALINA_HOME.  If you wish, you can
specify
             a different directory with the "directory" attribute.  Specify
either a
             relative (to $CATALINA_HOME) or absolute path to the desired
             directory.-->
        <Logger className="org.apache.catalina.logger.FileLogger"
                 directory="logs"  prefix="localhost_log." suffix=".txt"
	        timestamp="true"/>

        <!-- Define properties for each web application.  This is only
needed
             if you want to set non-default properties, or have web
application
             document roots in places other than the virtual host's appBase
             directory.  -->

        <!-- Tomcat Root Context -->
        <!--
          <Context path="" docBase="ROOT" debug="0"/>
        -->

<Context path="" docBase="c:/InetPub/wwwroot" debug="0" reloadable="true"/> 

        <!-- Tomcat Examples Context -->
        <Context path="/examples" docBase="examples" debug="0"
                 reloadable="true" crossContext="true">
          <Logger className="org.apache.catalina.logger.FileLogger"
                     prefix="localhost_examples_log." suffix=".txt"
        	  timestamp="true"/>
          <Ejb   name="ejb/EmplRecord" type="Entity"
                 home="com.wombat.empl.EmployeeRecordHome"
               remote="com.wombat.empl.EmployeeRecord"/>

          <!-- If you wanted the examples app to be able to edit the
               user database, you would uncomment the following entry.
               Of course, you would want to enable security on the
               application as well, so this is not done by default!
               The database object could be accessed like this:

               Context initCtx = new InitialContext();
               Context envCtx = (Context) initCtx.lookup("java:comp/env");
               UserDatabase database =
                    (UserDatabase) envCtx.lookup("userDatabase");
          -->
<!--
          <ResourceLink name="userDatabase" global="UserDatabase"
                        type="org.apache.catalina.UserDatabase"/>
-->


          <!-- PersistentManager: Uncomment the section below to test
Persistent 
		       Sessions.
                         
               saveOnRestart: If true, all active sessions will be saved
                 to the Store when Catalina is shutdown, regardless of
                 other settings. All Sessions found in the Store will be 
                 loaded on startup. Sessions past their expiration are
                 ignored in both cases.
               maxActiveSessions: If 0 or greater, having too many active 
                 sessions will result in some being swapped out. minIdleSwap
                 limits this. -1 means unlimited sessions are allowed.
                 0 means sessions will almost always be swapped out after
                 use - this will be noticeably slow for your users.
               minIdleSwap: Sessions must be idle for at least this long
                 (in seconds) before they will be swapped out due to 
               maxActiveSessions. This avoids thrashing when the site is 
                 highly active. -1 or 0 means there is no minimum - sessions
                 can be swapped out at any time.
               maxIdleSwap: Sessions will be swapped out if idle for this
                 long (in seconds). If minIdleSwap is higher, then it will
                 override this. This isn't exact: it is checked
periodically.
                 -1 means sessions won't be swapped out for this reason,
                 although they may be swapped out for maxActiveSessions.
                 If set to >= 0, guarantees that all sessions found in the
                 Store will be loaded on startup.
               maxIdleBackup: Sessions will be backed up (saved to the
Store,
                 but left in active memory) if idle for this long (in
seconds), 
                 and all sessions found in the Store will be loaded on
startup.
                 If set to -1 sessions will not be backed up, 0 means they
                 should be backed up shortly after being used.

               To clear sessions from the Store, set maxActiveSessions,
maxIdleSwap,
               and minIdleBackup all to -1, saveOnRestart to false, then
restart 
               Catalina.
          -->
		  <!--
          <Manager className="org.apache.catalina.session.PersistentManager"
              debug="0"
              saveOnRestart="true"
              maxActiveSessions="-1"
              minIdleSwap="-1"
              maxIdleSwap="-1"
              maxIdleBackup="-1">
                <Store className="org.apache.catalina.session.FileStore"/>
          </Manager>
		  -->
          <Environment name="maxExemptions" type="java.lang.Integer"
                      value="15"/>
          <Parameter name="context.param.name" value="context.param.value"
                     override="false"/>
          <Resource name="jdbc/EmployeeAppDb" auth="SERVLET"
                    type="javax.sql.DataSource"/>
          <ResourceParams name="jdbc/EmployeeAppDb">
            <parameter><name>user</name><value>sa</value></parameter>
            <parameter><name>password</name><value></value></parameter>
            <parameter><name>driverClassName</name>
              <value>org.hsql.jdbcDriver</value></parameter>
            <parameter><name>driverName</name>
              <value>jdbc:HypersonicSQL:database</value></parameter>
          </ResourceParams>
          <Resource name="mail/Session" auth="Container"
                    type="javax.mail.Session"/>
          <ResourceParams name="mail/Session">
            <parameter>
              <name>mail.smtp.host</name>
              <value>localhost</value>
            </parameter>
          </ResourceParams>
          <ResourceLink name="linkToGlobalResource" 
                    global="simpleValue"
                    type="java.lang.Integer"/>
        </Context>

      </Host>

    </Engine>

  </Service>

</Server>
----------------------------------------------------------------------------

i am trying to configure this since last three days.

All your helps are welcome.

Thanks,
Bharat


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