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tomcat problem

tomcat problem

2007-10-04       - By Omar Chebaro

 Back





Dear,I have an "Apache Tomcat/6.0.14" installed on the latest version of ubuntu
osI am trying to add a servlet to the example application, I put my class in a
jar file and put it in "tomcat_home/webapps/examples/WEB-INF/lib/"and i made
the necessary modification to the web.xml fileand when I call the servlet I got
this error:
type Status report
message Servlet BrowseRegions is not available
description The requested resource (Servlet BrowseRegions is not available) is
not available.so I made an " export CLASSPATH=/tmp/tomcat/webapps/examples/WEB
-INF/lib/my-jar.jar"and after restarting tomcat The error message changed to
this,
type Exception report
message
description The server encountered an internal error () that prevented it from
fulfilling this request.
exception javax.servlet.ServletException: Error allocating a servlet instance
  org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase
.java:433)   org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve
.java:102)   org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter
.java:263)   org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:844)   org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process
(Http11Protocol.java:584)   org.apache.tomcat.util.net.JIoEndpoint$Worker.run
(JIoEndpoint.java:447)   java.lang.Thread.run(Thread.java:619)
root cause java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet   java
.lang.ClassLoader.defineClass1(Native Method)   java.lang.ClassLoader.defineClass
(ClassLoader.java:620)   java.security.SecureClassLoader.defineClass
(SecureClassLoader.java:124)   java.net.URLClassLoader.defineClass(URLClassLoader
.java:260)   java.net.URLClassLoader.access$000(URLClassLoader.java:56)   java.net
.URLClassLoader$1.run(URLClassLoader.java:195)   java.security.AccessController
.doPrivileged(Native Method)   java.net.URLClassLoader.findClass(URLClassLoader
.java:188)   java.lang.ClassLoader.loadClass(ClassLoader.java:306)   sun.misc
.Launcher$AppClassLoader.loadClass(Launcher.java:276)   java.lang.ClassLoader
.loadClass(ClassLoader.java:251)   java.lang.ClassLoader.loadClassInternal
(ClassLoader.java:319)   java.lang.ClassLoader.defineClass1(Native Method)   java
.lang.ClassLoader.defineClass(ClassLoader.java:620)   java.security
.SecureClassLoader.defineClass(SecureClassLoader.java:124)   java.net
.URLClassLoader.defineClass(URLClassLoader.java:260)   java.net.URLClassLoader
.access$000(URLClassLoader.java:56)   java.net.URLClassLoader$1.run(URLClassLoader
.java:195)   java.security.AccessController.doPrivileged(Native Method)   java.net
.URLClassLoader.findClass(URLClassLoader.java:188)   java.lang.ClassLoader
.loadClass(ClassLoader.java:306)   sun.misc.Launcher$AppClassLoader.loadClass
(Launcher.java:276)   java.lang.ClassLoader.loadClass(ClassLoader.java:251)   org
.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1273)
  org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java
:1204)   org.apache.catalina.authenticator.AuthenticatorBase.invoke
(AuthenticatorBase.java:433)   org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java:102)   org.apache.catalina.connector.CoyoteAdapter.service
(CoyoteAdapter.java:263)   org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:844)   org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.process(Http11Protocol.java:584)   org.apache.tomcat.util
.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)   java.lang.Thread.run(Thread
.java:619)what could possibly be the reason that it was not loading the jar file
at first, and why can't it find the httpServlet now although the example
HelloWorldExample is working fineThank you for your timeRegardsOmar

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