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Posted to users@tomcat.apache.org by Fabbris Pierluigi <pi...@poste.it> on 2007/08/02 22:00:05 UTC
javax.servlet.ServletException: Cannot allocate servlet instancefor
path /servlet/HelloWorld (repost I don't resolve the problem with your reply)
Hi,
I've read the reply for the my question about
javax.servlet.ServletException: Cannot allocate servlet instancefor path
/servlet/HelloWorld.
I ask again because I don't understand how apply it.
*My Exception is:*
HTTP Status 500 -
------------------------------------------------------------------------
*type* Exception report
*message*
*description* _The server encountered an internal error () that
prevented it from fulfilling this request._
*exception*
javax.servlet.ServletException: Cannot allocate servlet instance for path /servlet/HelloWorld
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:380)
org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:134)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
*root cause*
java.lang.IllegalAccessException: Class org.apache.catalina.core.StandardWrapper can not access a member of class HelloWorld with modifiers ""
sun.reflect.Reflection.ensureMemberAccess(Unknown Source)
java.lang.Class.newInstance0(Unknown Source)
java.lang.Class.newInstance(Unknown Source)
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:361)
org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:134)
javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
*note* _The full stack trace of the root cause is available in the
Apache Tomcat/6.0.13 logs._
------------------------------------------------------------------------
Apache Tomcat/6.0.13
*My first servlet in directory classes is:*
class HelloWorld {
public static void main(String[] args)
{
System.out.println("Hello World!");
}
}
*The web.xml is:*
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<!-- ======================== Introduction
============================== -->
<!-- This document defines default values for *all* web
applications -->
<!-- loaded into this instance of Tomcat. As each application
is -->
<!-- deployed, this file is processed, followed by
the -->
<!-- "/WEB-INF/web.xml" deployment descriptor from your
own -->
<!--
applications. -->
<!--
-->
<!-- WARNING: Do not configure application-specific resources
here! -->
<!-- They should go in the "/WEB-INF/web.xml" file in your
application. -->
<!-- ================== Built In Servlet Definitions
==================== -->
<!-- The default servlet for all web applications, that serves
static -->
<!-- resources. It processes all requests that are not mapped to
other -->
<!-- servlets with servlet mappings (defined either here or in your
own -->
<!-- web.xml file. This servlet supports the following
initialization -->
<!-- parameters (default values are in square
brackets): -->
<!--
-->
<!-- debug Debugging detail level for messages
logged -->
<!-- by this servlet.
[0] -->
<!--
-->
<!-- fileEncoding Encoding to be used to read static
resources -->
<!-- [platform
default] -->
<!--
-->
<!-- input Input buffer size (in bytes) when
reading -->
<!-- resources to be served.
[2048] -->
<!--
-->
<!-- listings Should directory listings be produced if
there -->
<!-- is no welcome file in this directory?
[false] -->
<!-- WARNING: Listings for directories with
many -->
<!-- entries can be slow and may
consume -->
<!-- significant proportions of server
resources. -->
<!--
-->
<!-- output Output buffer size (in bytes) when
writing -->
<!-- resources to be served.
[2048] -->
<!--
-->
<!-- readonly Is this context "read only", so
HTTP -->
<!-- commands like PUT and DELETE
are -->
<!-- rejected?
[true] -->
<!--
-->
<!-- readmeFile File name to display with the
directory -->
<!-- contents.
[null] -->
<!--
-->
<!-- sendfileSize If the connector used supports sendfile,
this -->
<!-- represents the minimal file size in KB
for -->
<!-- which sendfile will be used. Use a
negative -->
<!-- value to always disable sendfile.
[48] -->
<!--
-->
<!-- For directory listing customization. Checks localXsltFile,
then -->
<!-- globalXsltFile, then defaults to original
behavior. -->
<!--
-->
<!-- localXsltFile Make directory listings an XML doc
and -->
<!-- pass the result to this style sheet
residing -->
<!-- in that directory. This
overrides -->
<!--
globalXsltFile[null] -->
<!--
-->
<!-- globalXsltFile Site wide configuration version
of -->
<!-- localXsltFile This argument is
expected -->
<!-- to be a physical file.
[null] -->
<!--
-->
<!--
-->
<servlet>
<servlet-name>default</servlet-name>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- The "invoker" servlet, which executes anonymous servlet
classes -->
<!-- that have not been defined in a web.xml file. Traditionally,
this -->
<!-- servlet is mapped to the URL pattern "/servlet/*", but you can
map -->
<!-- it to other patterns as well. The extra path info portion of
such a -->
<!-- request must be the fully qualified class name of a Java class
that -->
<!-- implements Servlet (or extends HttpServlet), or the servlet
name -->
<!-- of an existing servlet definition. This servlet supports
the -->
<!-- following initialization parameters (default values are in
square -->
<!--
brackets): -->
<!--
-->
<!-- debug Debugging detail level for messages
logged -->
<!-- by this servlet.
[0] -->
<servlet>
<servlet-name>invoker</servlet-name>
<servlet-class>
org.apache.catalina.servlets.InvokerServlet
</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- The JSP page compiler and execution servlet, which is the
mechanism -->
<!-- used by Tomcat to support JSP pages. Traditionally, this
servlet -->
<!-- is mapped to the URL pattern "*.jsp". This servlet supports
the -->
<!-- following initialization parameters (default values are in
square -->
<!--
brackets): -->
<!--
-->
<!-- checkInterval If development is false and checkInterval
is -->
<!-- greater than zero, background compilations
are -->
<!-- enabled. checkInterval is the time in
seconds -->
<!-- between checks to see if a JSP page needs
to -->
<!-- be recompiled.
[0] -->
<!--
-->
<!--
modificationTestInterval -->
<!-- Causes a JSP (and its dependent files) to
not -->
<!-- be checked for modification during
the -->
<!-- specified time interval (in seconds) from
the -->
<!-- last time the JSP was checked
for -->
<!-- modification. A value of 0 will cause the
JSP -->
<!-- to be checked on every
access. -->
<!-- Used in development mode only.
[4] -->
<!--
-->
<!-- compiler Which compiler Ant should use to compile
JSP -->
<!-- pages. See the jasper documentation for
more -->
<!--
information. -->
<!--
-->
<!-- classdebuginfo Should the class file be compiled
with -->
<!-- debugging information?
[true] -->
<!--
-->
<!-- classpath What class path should I use while
compiling -->
<!-- generated servlets? [Created
dynamically -->
<!-- based on the current web
application] -->
<!--
-->
<!-- development Is Jasper used in development mode? If
true, -->
<!-- the frequency at which JSPs are checked
for -->
<!-- modification may be specified via
the -->
<!-- modificationTestInterval parameter.
[true] -->
<!--
-->
<!-- enablePooling Determines whether tag handler pooling
is -->
<!-- enabled
[true] -->
<!--
-->
<!-- fork Tell Ant to fork compiles of JSP pages so
that -->
<!-- a separate JVM is used for JSP page
compiles -->
<!-- from the one Tomcat is running in.
[true] -->
<!--
-->
<!-- ieClassId The class-id value to be sent to
Internet -->
<!-- Explorer when using <jsp:plugin>
tags. -->
<!--
[clsid:8AD9C840-044E-11D1-B3E9-00805F499D93] -->
<!--
-->
<!-- javaEncoding Java file encoding to use for generating
java -->
<!-- source files.
[UTF8] -->
<!--
-->
<!-- keepgenerated Should we keep the generated Java source
code -->
<!-- for each page instead of deleting it?
[true] -->
<!--
-->
<!-- mappedfile Should we generate static content with
one -->
<!-- print statement per input line, to
ease -->
<!-- debugging?
[true] -->
<!--
-->
<!-- trimSpaces Should white spaces in template text
between -->
<!-- actions or directives be trimmed?
[false] -->
<!--
-->
<!-- suppressSmap Should the generation of SMAP info for
JSR45 -->
<!-- debugging be suppressed?
[false] -->
<!--
-->
<!-- dumpSmap Should the SMAP info for JSR45 debugging
be -->
<!-- dumped to a file?
[false] -->
<!-- False if suppressSmap is
true -->
<!--
-->
<!-- genStrAsCharArray Should text strings be generated as
char -->
<!-- arrays, to improve performance in some
cases? -->
<!--
[false] -->
<!--
-->
<!--
errorOnUseBeanInvalidClassAttribute -->
<!-- Should Jasper issue an error when the value
of -->
<!-- the class attribute in an useBean action
is -->
<!-- not a valid bean class?
[true] -->
<!--
-->
<!-- scratchdir What scratch directory should we use
when -->
<!-- compiling JSP pages? [default work
directory -->
<!-- for the current web
application] -->
<!--
-->
<!-- xpoweredBy Determines whether X-Powered-By
response -->
<!-- header is added by generated servlet
[false] -->
<!--
-->
<!-- compilerTargetVM Compiler target
VM -->
<!-- default is
System.properties -->
<!-- java.specification.version >
1.4 -->
<!-- [1.5] else
[1.4] -->
<!--
-->
<!-- compilerSourceVM Compiler source
VM -->
<!-- default is
System.properties -->
<!-- java.specification.version >
1.4 -->
<!-- [1.5] else
[1.4] -->
<!--
-->
<!-- If you wish to use Jikes to compile JSP
pages: -->
<!-- Please see the "Using Jikes" section of the
Jasper-HowTo -->
<!-- page in the Tomcat
documentation. -->
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>xpoweredBy</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>
<!-- NOTE: An SSI Filter is also available as an alternative
SSI -->
<!-- implementation. Use either the Servlet or the Filter but NOT
both. -->
<!--
-->
<!-- Server Side Includes processing servlet, which processes
SSI -->
<!-- directives in HTML pages consistent with similar support in
web -->
<!-- servers like Apache. Traditionally, this servlet is mapped to
the -->
<!-- URL pattern "*.shtml". This servlet supports the
following -->
<!-- initialization parameters (default values are in square
brackets): -->
<!--
-->
<!-- buffered Should output from this servlet be
buffered? -->
<!-- (0=false, 1=true)
[0] -->
<!--
-->
<!-- debug Debugging detail level for messages
logged -->
<!-- by this servlet.
[0] -->
<!--
-->
<!-- expires The number of seconds before a page with
SSI -->
<!-- directives will expire. [No
default] -->
<!--
-->
<!--
isVirtualWebappRelative -->
<!-- Should "virtual" paths be interpreted
as -->
<!-- relative to the context root, instead
of -->
<!-- the server root? (0=false, 1=true)
[0] -->
<!--
-->
<!-- inputEncoding The encoding to assume for SSI resources
if -->
<!-- one is not available from the
resource. -->
<!-- [Platform
default] -->
<!--
-->
<!-- outputEncoding The encoding to use for the page that
results -->
<!-- from the SSI processing.
[UTF-8] -->
<!--
-->
<!--
-->
<!-- IMPORTANT: To use the SSI servlet, you also need to rename
the -->
<!-- $CATALINA_HOME/server/lib/servlets-ssi.renametojar
file -->
<!-- to
$CATALINA_HOME/server/lib/servlets-ssi.jar -->
<!--
<servlet>
<servlet-name>ssi</servlet-name>
<servlet-class>
org.apache.catalina.ssi.SSIServlet
</servlet-class>
<init-param>
<param-name>buffered</param-name>
<param-value>1</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>expires</param-name>
<param-value>666</param-value>
</init-param>
<init-param>
<param-name>isVirtualWebappRelative</param-name>
<param-value>0</param-value>
</init-param>
<load-on-startup>4</load-on-startup>
</servlet>
-->
<!-- Common Gateway Includes (CGI) processing servlet, which
supports -->
<!-- execution of external applications that conform to the CGI
spec -->
<!-- requirements. Typically, this servlet is mapped to the URL
pattern -->
<!-- "/cgi-bin/*", which means that any CGI applications that
are -->
<!-- executed must be present within the web application. This
servlet -->
<!-- supports the following initialization parameters (default
values -->
<!-- are in square
brackets): -->
<!--
-->
<!-- cgiPathPrefix The CGI search path will start
at -->
<!-- webAppRootDir + File.separator + this
prefix. -->
<!--
[WEB-INF/cgi] -->
<!--
-->
<!-- debug Debugging detail level for messages
logged -->
<!-- by this servlet.
[0] -->
<!--
-->
<!-- executable Name of the exectuable used to run
the -->
<!-- script.
[perl] -->
<!--
-->
<!-- parameterEncoding Name of parameter encoding to be used
with -->
<!-- CGI
servlet. -->
<!--
[System.getProperty("file.encoding","UTF-8")] -->
<!--
-->
<!-- passShellEnvironment Should the shell environment variables
(if -->
<!-- any) be passed to the CGI script?
[false] -->
<!--
-->
<!-- IMPORTANT: To use the CGI servlet, you also need to rename
the -->
<!-- $CATALINA_HOME/server/lib/servlets-cgi.renametojar
file -->
<!-- to
$CATALINA_HOME/server/lib/servlets-cgi.jar -->
<!--
<servlet>
<servlet-name>cgi</servlet-name>
<servlet-class>org.apache.catalina.servlets.CGIServlet</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>cgiPathPrefix</param-name>
<param-value>WEB-INF/cgi</param-value>
</init-param>
<load-on-startup>5</load-on-startup>
</servlet>
-->
<!-- ================ Built In Servlet Mappings
========================= -->
<!-- The servlet mappings for the built in servlets defined above.
Note -->
<!-- that, by default, the CGI and SSI servlets are *not* mapped.
You -->
<!-- must uncomment these mappings (or add them to your application's
own -->
<!-- web.xml deployment descriptor) to enable these
services -->
<!-- The mapping for the default servlet -->
<servlet-mapping>
<servlet-name>default</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- The mapping for the invoker servlet -->
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
<!-- The mapping for the JSP servlet -->
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jspx</url-pattern>
</servlet-mapping>
<!-- The mapping for the SSI servlet -->
<!--
<servlet-mapping>
<servlet-name>ssi</servlet-name>
<url-pattern>*.shtml</url-pattern>
</servlet-mapping>
-->
<!-- The mapping for the CGI Gateway servlet -->
<!--
<servlet-mapping>
<servlet-name>cgi</servlet-name>
<url-pattern>/cgi-bin/*</url-pattern>
</servlet-mapping>
-->
<!-- ================== Built In Filter Definitions
===================== -->
<!-- NOTE: An SSI Servlet is also available as an alternative
SSI -->
<!-- implementation. Use either the Servlet or the Filter but NOT
both. -->
<!--
-->
<!-- Server Side Includes processing filter, which processes
SSI -->
<!-- directives in HTML pages consistent with similar support in
web -->
<!-- servers like Apache. Traditionally, this filter is mapped to
the -->
<!-- URL pattern "*.shtml", though it can be mapped to "*" as it
will -->
<!-- selectively enable/disable SSI processing based on mime types.
For -->
<!-- this to work you will need to uncomment the .shtml mime
type -->
<!-- definition towards the bottom of this
file. -->
<!-- The contentType init param allows you to apply SSI processing to
JSP -->
<!-- pages, javascript, or any other content you wish. This
filter -->
<!-- supports the following initialization parameters (default values
are -->
<!-- in square
brackets): -->
<!--
-->
<!-- contentType A regex pattern that must be matched
before -->
<!-- SSI processing is
applied. -->
<!--
[text/x-server-parsed-html(;.*)?] -->
<!--
-->
<!-- debug Debugging detail level for messages
logged -->
<!-- by this servlet.
[0] -->
<!--
-->
<!-- expires The number of seconds before a page with
SSI -->
<!-- directives will expire. [No
default] -->
<!--
-->
<!--
isVirtualWebappRelative -->
<!-- Should "virtual" paths be interpreted
as -->
<!-- relative to the context root, instead
of -->
<!-- the server root? (0=false, 1=true)
[0] -->
<!--
-->
<!--
-->
<!-- IMPORTANT: To use the SSI filter, you also need to rename
the -->
<!-- $CATALINA_HOME/server/lib/servlets-ssi.renametojar
file -->
<!-- to
$CATALINA_HOME/server/lib/servlets-ssi.jar -->
<!--
<filter>
<filter-name>ssi</filter-name>
<filter-class>
org.apache.catalina.ssi.SSIFilter
</filter-class>
<init-param>
<param-name>contentType</param-name>
<param-value>text/x-server-parsed-html(;.*)?</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>expires</param-name>
<param-value>666</param-value>
</init-param>
<init-param>
<param-name>isVirtualWebappRelative</param-name>
<param-value>0</param-value>
</init-param>
</filter>
-->
<!-- ==================== Built In Filter Mappings
====================== -->
<!-- The mapping for the SSI Filter -->
<!--
<filter-mapping>
<filter-name>ssi</filter-name>
<url-pattern>*.shtml</url-pattern>
</filter-mapping>
-->
<!-- ==================== Default Session Configuration
================= -->
<!-- You can set the default session timeout (in minutes) for all
newly -->
<!-- created sessions by modifying the value
below. -->
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<!-- ===================== Default MIME Type Mappings
=================== -->
<!-- When serving static resources, Tomcat will automatically
generate -->
<!-- a "Content-Type" header based on the resource's filename
extension, -->
<!-- based on these mappings. Additional mappings can be added here
(to -->
<!-- apply to all web applications), or in your own application's
web.xml -->
<!-- deployment
descriptor. -->
<mime-mapping>
<extension>abs</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ai</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aif</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aifc</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aiff</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aim</extension>
<mime-type>application/x-aim</mime-type>
</mime-mapping>
<mime-mapping>
<extension>art</extension>
<mime-type>image/x-jg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>asf</extension>
<mime-type>video/x-ms-asf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>asx</extension>
<mime-type>video/x-ms-asf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>au</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>avi</extension>
<mime-type>video/x-msvideo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>avx</extension>
<mime-type>video/x-rad-screenplay</mime-type>
</mime-mapping>
<mime-mapping>
<extension>bcpio</extension>
<mime-type>application/x-bcpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>bin</extension>
<mime-type>application/octet-stream</mime-type>
</mime-mapping>
<mime-mapping>
<extension>bmp</extension>
<mime-type>image/bmp</mime-type>
</mime-mapping>
<mime-mapping>
<extension>body</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cdf</extension>
<mime-type>application/x-cdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cer</extension>
<mime-type>application/x-x509-ca-cert</mime-type>
</mime-mapping>
<mime-mapping>
<extension>class</extension>
<mime-type>application/java</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cpio</extension>
<mime-type>application/x-cpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>csh</extension>
<mime-type>application/x-csh</mime-type>
</mime-mapping>
<mime-mapping>
<extension>css</extension>
<mime-type>text/css</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dib</extension>
<mime-type>image/bmp</mime-type>
</mime-mapping>
<mime-mapping>
<extension>doc</extension>
<mime-type>application/msword</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dtd</extension>
<mime-type>application/xml-dtd</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dv</extension>
<mime-type>video/x-dv</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dvi</extension>
<mime-type>application/x-dvi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>eps</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>etx</extension>
<mime-type>text/x-setext</mime-type>
</mime-mapping>
<mime-mapping>
<extension>exe</extension>
<mime-type>application/octet-stream</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gif</extension>
<mime-type>image/gif</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gtar</extension>
<mime-type>application/x-gtar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gz</extension>
<mime-type>application/x-gzip</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hdf</extension>
<mime-type>application/x-hdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hqx</extension>
<mime-type>application/mac-binhex40</mime-type>
</mime-mapping>
<mime-mapping>
<extension>htc</extension>
<mime-type>text/x-component</mime-type>
</mime-mapping>
<mime-mapping>
<extension>htm</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hqx</extension>
<mime-type>application/mac-binhex40</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ief</extension>
<mime-type>image/ief</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jad</extension>
<mime-type>text/vnd.sun.j2me.app-descriptor</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jar</extension>
<mime-type>application/java-archive</mime-type>
</mime-mapping>
<mime-mapping>
<extension>java</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jnlp</extension>
<mime-type>application/x-java-jnlp-file</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpe</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpeg</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpg</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>js</extension>
<mime-type>text/javascript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jsf</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jspf</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>kar</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>latex</extension>
<mime-type>application/x-latex</mime-type>
</mime-mapping>
<mime-mapping>
<extension>m3u</extension>
<mime-type>audio/x-mpegurl</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mac</extension>
<mime-type>image/x-macpaint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>man</extension>
<mime-type>application/x-troff-man</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mathml</extension>
<mime-type>application/mathml+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>me</extension>
<mime-type>application/x-troff-me</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mid</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>midi</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mif</extension>
<mime-type>application/x-mif</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mov</extension>
<mime-type>video/quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>movie</extension>
<mime-type>video/x-sgi-movie</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp1</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp2</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp3</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp4</extension>
<mime-type>video/mp4</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpa</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpe</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpeg</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpega</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpg</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpv2</extension>
<mime-type>video/mpeg2</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ms</extension>
<mime-type>application/x-wais-source</mime-type>
</mime-mapping>
<mime-mapping>
<extension>nc</extension>
<mime-type>application/x-netcdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>oda</extension>
<mime-type>application/oda</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Database -->
<extension>odb</extension>
<mime-type>application/vnd.oasis.opendocument.database</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Chart -->
<extension>odc</extension>
<mime-type>application/vnd.oasis.opendocument.chart</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Formula -->
<extension>odf</extension>
<mime-type>application/vnd.oasis.opendocument.formula</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Drawing -->
<extension>odg</extension>
<mime-type>application/vnd.oasis.opendocument.graphics</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Image -->
<extension>odi</extension>
<mime-type>application/vnd.oasis.opendocument.image</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Master Document -->
<extension>odm</extension>
<mime-type>application/vnd.oasis.opendocument.text-master</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Presentation -->
<extension>odp</extension>
<mime-type>application/vnd.oasis.opendocument.presentation</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Spreadsheet -->
<extension>ods</extension>
<mime-type>application/vnd.oasis.opendocument.spreadsheet</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Text -->
<extension>odt</extension>
<mime-type>application/vnd.oasis.opendocument.text</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ogg</extension>
<mime-type>application/ogg</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Drawing Template -->
<extension>otg </extension>
<mime-type>application/vnd.oasis.opendocument.graphics-template</mime-type>
</mime-mapping>
<mime-mapping>
<!-- HTML Document Template -->
<extension>oth</extension>
<mime-type>application/vnd.oasis.opendocument.text-web</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Presentation Template -->
<extension>otp</extension>
<mime-type>application/vnd.oasis.opendocument.presentation-template</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Spreadsheet Template -->
<extension>ots</extension>
<mime-type>application/vnd.oasis.opendocument.spreadsheet-template
</mime-type>
</mime-mapping>
<mime-mapping>
<!-- OpenDocument Text Template -->
<extension>ott</extension>
<mime-type>application/vnd.oasis.opendocument.text-template</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pbm</extension>
<mime-type>image/x-portable-bitmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pct</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pdf</extension>
<mime-type>application/pdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pgm</extension>
<mime-type>image/x-portable-graymap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pic</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pict</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pls</extension>
<mime-type>audio/x-scpls</mime-type>
</mime-mapping>
<mime-mapping>
<extension>png</extension>
<mime-type>image/png</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pnm</extension>
<mime-type>image/x-portable-anymap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pnt</extension>
<mime-type>image/x-macpaint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppm</extension>
<mime-type>image/x-portable-pixmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppt</extension>
<mime-type>application/powerpoint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ps</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>psd</extension>
<mime-type>image/x-photoshop</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qt</extension>
<mime-type>video/quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qti</extension>
<mime-type>image/x-quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qtif</extension>
<mime-type>image/x-quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ras</extension>
<mime-type>image/x-cmu-raster</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rdf</extension>
<mime-type>application/rdf+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rgb</extension>
<mime-type>image/x-rgb</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rm</extension>
<mime-type>application/vnd.rn-realmedia</mime-type>
</mime-mapping>
<mime-mapping>
<extension>roff</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rtf</extension>
<mime-type>application/rtf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rtx</extension>
<mime-type>text/richtext</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sh</extension>
<mime-type>application/x-sh</mime-type>
</mime-mapping>
<mime-mapping>
<extension>shar</extension>
<mime-type>application/x-shar</mime-type>
</mime-mapping>
<!--
<mime-mapping>
<extension>shtml</extension>
<mime-type>text/x-server-parsed-html</mime-type>
</mime-mapping>
-->
<mime-mapping>
<extension>smf</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sit</extension>
<mime-type>application/x-stuffit</mime-type>
</mime-mapping>
<mime-mapping>
<extension>snd</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>src</extension>
<mime-type>application/x-wais-source</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sv4cpio</extension>
<mime-type>application/x-sv4cpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sv4crc</extension>
<mime-type>application/x-sv4crc</mime-type>
</mime-mapping>
<mime-mapping>
<extension>swf</extension>
<mime-type>application/x-shockwave-flash</mime-type>
</mime-mapping>
<mime-mapping>
<extension>t</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tar</extension>
<mime-type>application/x-tar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tcl</extension>
<mime-type>application/x-tcl</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tex</extension>
<mime-type>application/x-tex</mime-type>
</mime-mapping>
<mime-mapping>
<extension>texi</extension>
<mime-type>application/x-texinfo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>texinfo</extension>
<mime-type>application/x-texinfo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tif</extension>
<mime-type>image/tiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tiff</extension>
<mime-type>image/tiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tr</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tsv</extension>
<mime-type>text/tab-separated-values</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ulw</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ustar</extension>
<mime-type>application/x-ustar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>vxml</extension>
<mime-type>application/voicexml+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xbm</extension>
<mime-type>image/x-xbitmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xht</extension>
<mime-type>application/xhtml+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xhtml</extension>
<mime-type>application/xhtml+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xml</extension>
<mime-type>application/xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xpm</extension>
<mime-type>image/x-xpixmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xsl</extension>
<mime-type>application/xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xslt</extension>
<mime-type>application/xslt+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xul</extension>
<mime-type>application/vnd.mozilla.xul+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xwd</extension>
<mime-type>image/x-xwindowdump</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wav</extension>
<mime-type>audio/x-wav</mime-type>
</mime-mapping>
<mime-mapping>
<extension>svg</extension>
<mime-type>image/svg+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>svgz</extension>
<mime-type>image/svg+xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>vsd</extension>
<mime-type>application/x-visio</mime-type>
</mime-mapping>
<mime-mapping>
<!-- Wireless Bitmap -->
<extension>wbmp</extension>
<mime-type>image/vnd.wap.wbmp</mime-type>
</mime-mapping>
<mime-mapping>
<!-- WML Source -->
<extension>wml</extension>
<mime-type>text/vnd.wap.wml</mime-type>
</mime-mapping>
<mime-mapping>
<!-- Compiled WML -->
<extension>wmlc</extension>
<mime-type>application/vnd.wap.wmlc</mime-type>
</mime-mapping>
<mime-mapping>
<!-- WML Script Source -->
<extension>wmls</extension>
<mime-type>text/vnd.wap.wmlscript</mime-type>
</mime-mapping>
<mime-mapping>
<!-- Compiled WML Script -->
<extension>wmlscriptc</extension>
<mime-type>application/vnd.wap.wmlscriptc</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wmv</extension>
<mime-type>video/x-ms-wmv</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wrl</extension>
<mime-type>x-world/x-vrml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>Z</extension>
<mime-type>application/x-compress</mime-type>
</mime-mapping>
<mime-mapping>
<extension>z</extension>
<mime-type>application/x-compress</mime-type>
</mime-mapping>
<mime-mapping>
<extension>zip</extension>
<mime-type>application/zip</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xls</extension>
<mime-type>application/vnd.ms-excel</mime-type>
</mime-mapping>
<mime-mapping>
<extension>doc</extension>
<mime-type>application/vnd.ms-word</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppt</extension>
<mime-type>application/vnd.ms-powerpoint</mime-type>
</mime-mapping>
<!-- ==================== Default Welcome File List
===================== -->
<!-- When a request URI refers to a directory, the default servlet
looks -->
<!-- for a "welcome file" within that directory and, if
present, -->
<!-- to the corresponding resource URI for display. If no welcome
file -->
<!-- is present, the default servlet either serves a directory
listing, -->
<!-- or returns a 404 status, depending on how it is
configured. -->
<!--
-->
<!-- If you define welcome files in your own application's
web.xml -->
<!-- deployment descriptor, that list *replaces* the list
configured -->
<!-- here, so be sure that you include any of the default values
that -->
<!-- you wish to
include. -->
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
I write this long email to describe better the problem to get your help.
How can I resolve this Exception?
Sincerally yours,
Fabbris Pierluigi
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Re: javax.servlet.ServletException: Cannot allocate servlet instancefor path /servlet/HelloWorld (repost I don't resolve the problem with your reply)
Posted by Hassan Schroeder <ha...@gmail.com>.
On 8/2/07, Fabbris Pierluigi <pi...@poste.it> wrote:
> javax.servlet.ServletException: Cannot allocate servlet instance for path /servlet/HelloWorld
> *My first servlet in directory classes is:*
Uh, well -- this *isn't* a servlet. I'm guessing that's the problem :-)
javax.servlet.Servlet is an interface -- your servlet needs to extend
it (actually HttpServlet in this case).
> class HelloWorld {
> public static void main(String[] args)
> {
> System.out.println("Hello World!");
> }
> }
See the examples packaged with Tomcat, and take a look at the
Servlet Spec JavaDocs.
HTH,
--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com
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