Howdy, This error happens when the HttpServlet class that was on the classpath with the error-throwing servlet was compiled is not present at runtime. The person may have installed tomcat improperly, accidentally removed $CATALINA_HOME/common/lib/servlet.jar, or added an older version of servlet.jar to his WEB-INF/lib directory.
Yoav Shapira Millennium ChemInformatics >-----Original Message----- >From: Robyne Vaughn [mailto:[EMAIL PROTECTED] >Sent: Thursday, November 06, 2003 9:18 AM >To: Tomcat Users List >Subject: RE: How could I solve this error > > >Error snippet: >root cause > >java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet > > > >I think I remember this happening to me when I saved my servlet as one >name, but inside the servlet, the class name was something else. >robyne > >-----Original Message----- >From: Javier [mailto:[EMAIL PROTECTED] >Sent: Thursday, November 06, 2003 5:26 AM >To: Tomcat Users List >Subject: How could I solve this error > > > >I tried to run my first servlet and got this error: > > >description The server encountered an internal error () that prevented >it from fulfilling this request. > >exception > >javax.servlet.ServletException: Error allocating a servlet instance > >org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav a >:16 >4) > >org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:57 8 >) > >org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:209) > >org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:7 8 >1) > >org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process C >onn >ection(Http11Protocol.java:549) > >org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:5 8 >9) > >org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPoo l >.ja >va:666) > java.lang.Thread.run(Unknown Source) > > >root cause > >java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet > java.lang.ClassLoader.defineClass0(Native Method) > java.lang.ClassLoader.defineClass(Unknown Source) > java.security.SecureClassLoader.defineClass(Unknown Source) > java.net.URLClassLoader.defineClass(Unknown Source) > java.net.URLClassLoader.access$100(Unknown Source) > java.net.URLClassLoader$1.run(Unknown Source) > java.security.AccessController.doPrivileged(Native Method) > java.net.URLClassLoader.findClass(Unknown Source) > java.lang.ClassLoader.loadClass(Unknown Source) > java.lang.ClassLoader.loadClass(Unknown Source) > sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) > java.lang.ClassLoader.loadClass(Unknown Source) > >org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoade r >.ja >va:1278) > >org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoade r >.ja >va:1212) > java.lang.ClassLoader.loadClassInternal(Unknown Source) > java.lang.ClassLoader.defineClass0(Native Method) > java.lang.ClassLoader.defineClass(Unknown Source) > java.security.SecureClassLoader.defineClass(Unknown Source) > >org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappCl a >ssL >oader.java:1652) > >org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoade r >.ja >va:883) > >org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoade r >.ja >va:1332) > >org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoade r >.ja >va:1212) > >org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.jav a >:16 >4) > >org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:57 8 >) > >org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:209) > >org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:7 8 >1) > >org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process C >onn >ection(Http11Protocol.java:549) > >org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:5 8 >9) > >org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPoo l >.ja >va:666) > java.lang.Thread.run(Unknown Source) > > > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
