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Posted to users@tomcat.apache.org by Tim Funk <fu...@joedog.org> on 2005/12/06 12:30:15 UTC
Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
See - http://tomcat.apache.org/faq/classnotfound.html
Odds are you have your own servlet-api.jar somewhere in the webapp or system
classpath and that is conflicting with the one in common/lib (installed by
tomcat)
-Tim
John Poley wrote:
> Please forgive my intrusion if this is not the proper place to post a questoon of this sort. I am new to servlets, and am working on my first deployment- but I am running in to a problem that I can't find a solution to. I have installed Tomcat 5.5 and am using Eclipse (as well as a tomcat plugin) to manage my project. A colleague of mine sent me a war file of out working projected, which I imported to my IDE. I start tomcat, which seems to load properly, and attempt to run the project on the server- where I am faced with the following:
>
>
> javax.servlet.ServletException: Servlet.init() for servlet RequestTranslator threw exception
>
> root cause
>
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> java.lang.Class.getDeclaredConstructors0(Native Method)
> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
> java.lang.Class.getConstructor0(Unknown Source)
> java.lang.Class.getConstructor(Unknown Source)
> freemarker.template.Configuration.setServletContextForTemplateLoading(Configuration.java:331)
> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:663)
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
> java.lang.Thread.run(Unknown Source)
> I am using the most recent J2RE 5 and I am certain that Tomcat's servlet-api.jar is within my application's class path. I am not sure why the source cannot be found. Any helpin locating my problem would be greatly appreciated, and I would be happy to prove more information if needed (I'm not entirely sure what would be helpful). And again, I am sorry if this is not the place for this kind of question!Happy coding!John
>
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Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by John Poley <jo...@jpoley.com>.
*sigh* it just had to be something simple, didn't it? Even right in front
of me with the
http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html page that
someone suggested earlier. I put freemarker in the tomcat/shared/lib
directory and all is well. I am having serious issues grasping this
classloader thing, apparently =)
Thanks for the help, all!
----- Original Message -----
From: "Tim Funk" <fu...@joedog.org>
To: "Tomcat Users List" <us...@tomcat.apache.org>
Sent: Wednesday, December 07, 2005 9:01 PM
Subject: Re: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
> BINGO!!!!!
>
> freemarker.jar does not belong in the system classloader. It belongs in
> WEB-INF/lib.
>
> [ Quick rule of thumb - putting a lib in java/lib/ext will cause problems
99%
> of the time. ]
>
> -Tim
>
> John Poley wrote:
> > And as for me, since we seem to be having similar issues, I cut out
eclipse
> > all together, worried that somehow it was cause some kind of issue. I
have
> > a .war file that was was exported by a colleague who is running the same
> > .war within tomcat and having no trouble at all with it. I copy that
.war
> > file into the webapps directory of a freshly installed tomcat where I
have
> > changed no settings. I start tomcat, and then open a browser to either
the
> > simple HelloServlet file he included in the .war as a test or the actual
> > servlet we are preparing- in both cases I get this same
> > NoClassDefFoundError. I do not have j2ee on this system, and I have
run a
> > complete search for servlet.jar and j2ee.jar files in the hard drive and
> > found none other than servlet-api.jar that lies within
tomcat/common/lib.
> > I am using a newly installed J2SE, JDK 5.0 Update 6, with no other java
> > libraries installed. The only files I have added to java/lib/ext are
> > freemarker.jar and and a mysql-connector jar.
> > Am I missing something somewhere?
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
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Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by Tim Funk <fu...@joedog.org>.
BINGO!!!!!
freemarker.jar does not belong in the system classloader. It belongs in
WEB-INF/lib.
[ Quick rule of thumb - putting a lib in java/lib/ext will cause problems 99%
of the time. ]
-Tim
John Poley wrote:
> And as for me, since we seem to be having similar issues, I cut out eclipse
> all together, worried that somehow it was cause some kind of issue. I have
> a .war file that was was exported by a colleague who is running the same
> .war within tomcat and having no trouble at all with it. I copy that .war
> file into the webapps directory of a freshly installed tomcat where I have
> changed no settings. I start tomcat, and then open a browser to either the
> simple HelloServlet file he included in the .war as a test or the actual
> servlet we are preparing- in both cases I get this same
> NoClassDefFoundError. I do not have j2ee on this system, and I have run a
> complete search for servlet.jar and j2ee.jar files in the hard drive and
> found none other than servlet-api.jar that lies within tomcat/common/lib.
> I am using a newly installed J2SE, JDK 5.0 Update 6, with no other java
> libraries installed. The only files I have added to java/lib/ext are
> freemarker.jar and and a mysql-connector jar.
> Am I missing something somewhere?
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Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by John Poley <jo...@jpoley.com>.
And as for me, since we seem to be having similar issues, I cut out eclipse
all together, worried that somehow it was cause some kind of issue. I have
a .war file that was was exported by a colleague who is running the same
.war within tomcat and having no trouble at all with it. I copy that .war
file into the webapps directory of a freshly installed tomcat where I have
changed no settings. I start tomcat, and then open a browser to either the
simple HelloServlet file he included in the .war as a test or the actual
servlet we are preparing- in both cases I get this same
NoClassDefFoundError. I do not have j2ee on this system, and I have run a
complete search for servlet.jar and j2ee.jar files in the hard drive and
found none other than servlet-api.jar that lies within tomcat/common/lib.
I am using a newly installed J2SE, JDK 5.0 Update 6, with no other java
libraries installed. The only files I have added to java/lib/ext are
freemarker.jar and and a mysql-connector jar.
Am I missing something somewhere?
----- Original Message -----
From: "Armand Rock" <ro...@gilmore.ca>
To: "Tomcat Users List" <us...@tomcat.apache.org>
Sent: Wednesday, December 07, 2005 5:32 PM
Subject: RE: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
> I personally have not changed any classpath settings. The classes are
build
> using Eclipse SDK Version 3.1.1 with
> the Tomcat plugin from sysdeo (3.1.0.beta).
> I have noticed that the NoClassDefFoundError occurs on specific pages but
> only the first time
> the pages are loaded, everything else within the page works perfectly
after
> I reload the page.
> In every instance that I have issues I'm using a Servlet which in turn
makes
> use of the ClassFinder,
> it first calls a Java file (specific to the current command being run)
> followed by a redirection to a Jsp.
>
> As for ClassFileFinder here is the code. I can't find where this code was
> from but it was originally found online...
> I usually leave credit information at the top but this particuliar class
did
> not contain any.
>
> public class ClassFileFinder extends ClassLoader
> {
> List cpath = new LinkedList();
> Hashtable loadedClasses = new Hashtable();
>
> public void addFile(File f) {
> if(f.isDirectory() || (f.isFile() && f.canRead() &&
> f.getName().endsWith(".jar")))
> cpath.add(f);
> }
>
> public byte[] classData(String className) {
> String cname = className.replace('.', File.separatorChar) + ".class";
> Iterator it = cpath.iterator();
> while(it.hasNext()) {
> File f = (File)it.next();
> try {
> if(f.isDirectory()) {
> File cFile = new File(f, cname);
> if(cFile.isFile()) {
> byte[] buf = new byte[(int)cFile.length()];
> InputStream in = new FileInputStream(cFile);
> int off = 0, l;
> while((l = in.read(buf, off, buf.length - off)) > 0) {
> off += l;
> if(off >= buf.length) break;
> }
> in.read(buf);
> in.close();
> return buf;
> }
>
> } else if (f.isFile()) {
> JarFile jar = new JarFile(f);
> JarEntry ent = jar.getJarEntry(cname);
> if(ent != null) {
>
> byte[] buf = new byte[(int)ent.getSize()];
> int off = 0, l;
> InputStream in = jar.getInputStream(ent);
> while((l = in.read(buf, off, buf.length - off)) > 0) {
> off += l;
> if(off >= buf.length) break;
> }
>
> in.close();
> return buf;
> }
> }
> } catch (IOException e) {
>
> }
> }
> return null;
> }
>
> public Class findClass(String className) throws ClassNotFoundException{
> if (loadedClasses.get(className)!=null) {
> return Class.forName(className);
> }
>
> loadedClasses.put(className, className);
>
> byte[] data = classData(className);
> if(data == null)
> return getParent().loadClass(className);
> else
> return defineClass(className,data,0, data.length);
> }
> }
>
> -----Original Message-----
> From: David Smith [mailto:dns4@cornell.edu]
> Sent: December 7, 2005 7:47 AM
> To: Tomcat Users List
> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
> javax/servlet/ServletContext
>
>
> > ...and that servlet-api.jar from tomcat is in the path.
>
> You wouldn't happen to be messing with the classpath at all would you?
> That will cause headaches. Best advise is to leave the classpath alone
> and let tomcat's classloader hierarchy handle finding classes.
>
> Thought 2: Tell me more about this ClassFinder class. It's not a part
> of Java's API and I'm wondering if it's not running it's own classloader
> independant of tomcat's classloader mechanism.
>
> --David
>
> John Poley wrote:
>
> > Thank you for your comments thus far.
> > I have been unable to solve my problem as well. I even went so far as
> > to start with a machine with no development tools on it, downloading
> > just the elements I required, and then trying to redeploy. I am
> > fairly certain that there are no extra servlet jars anywhere, and that
> > servlet-api.jar from tomcat is in the path. Still I face the
> > java.lang.NoClassDefFoundError: javax/servlet/ServletContext error. I
> > am using java 1.5.0_06 and and a 5.5 server. Well, trying to anyway!
> > =) I'll place the error information at the very bottom of this email
> > to avoid pushing down the previous responses too far. Any more ideas
> > would be appreciated!
> >
> > ----- Original Message ----- From: "Armand Rock" <ro...@gilmore.ca>
> > To: "Tomcat Users List" <us...@tomcat.apache.org>
> > Sent: Tuesday, December 06, 2005 12:44 PM
> > Subject: RE: Question concerning java.lang.NoClassDefFoundError:
> > javax/servlet/ServletContext
> >
> >
> >> Hello David,
> >> I included all jar & zip files on my computer, including j2ee.jar and
> >> I'm
> >> still having the problem.
> >> I have just noticed a weird behaviour though, if I try to reload the
jsp
> >> right after the jsp fails the first
> >> time it seems to run without throwing the exception. If I restart
> >> Tomcat
> >> and try again the problem starts
> >> again. I could get this to work in theory by forcing it to run
> >> through the
> >> code once on startup
> >> but I shouldn't have to do that and I honestly would prefer getting
> >> it to
> >> work as it should.
> >>
> >> -----Original Message-----
> >> From: David Smith [mailto:dns4@cornell.edu]
> >> Sent: December 6, 2005 11:57 AM
> >> To: Tomcat Users List
> >> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
> >> javax/servlet/ServletContext
> >>
> >>
> >> I take it you also included j2ee.jar in that search?
> >>
> >> --David
> >>
> >> Armand Rock wrote:
> >>
> >>> Hi,
> >>> I'm getting the same error. I searched my entire computer for any
> >>> jar/zip
> >>> files containing javax.servlet.ServletContext
> >>> and renamed all of them to ".original" so that they wouldn't be read
> >>> by the
> >>> JVM. I did this to all the files except for the file
> >>> common/lib/servlet-api.jar
> >>>
> >>> I'm still getting the problem.
> >>>
> >>> I'm using java version 1.4.2_10
> >>>
> >>> The code i'm using used to work under Orion version 1.4.5 (I'm now
> >>> using
> >>> Tomcat 5.5)
> >>> The code that eventually throws the exception is basically:
> >>>
> >>> ClassFinder classFinder = new ClassFinder();
> >>> classFinder.addFile("/opt/classes/com/canlink/commands/");
> >>> Class usrClass =
> >>> classFinder.findClass("com.canlink.commands.TestClass");
> >>>
> >>> This line is what throws the exception:
> >>> Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
> >>> {Boolean.class});
> >>>
> >>> The stack trace is:
> >>> SEVERE: Servlet.service() for servlet RunCmd threw exception
> >>> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> >>> at java.lang.Class.getDeclaredMethods0(Native Method)
> >>> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
> >>> at java.lang.Class.getMethod0(Unknown Source)
> >>> at java.lang.Class.getMethod0(Unknown Source)
> >>> at java.lang.Class.getMethod(Unknown Source)
> >>> at com.canlink.commands.RunCmd.service(RunCmd.java:240)
> >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
> >>>
> >>
> >> n
> >>
> >>> FilterChain.java:252)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
> >>>
> >>
> >> h
> >>
> >>> ain.java:173)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
> >>>
> >>
> >> .
> >>
> >>> java:672)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
> >>>
> >>
> >> s
> >>
> >>> patcher.java:463)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
> >>>
> >>
> >> h
> >>
> >>> er.java:398)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
> >>>
> >>
> >> r
> >>
> >>> .java:301)
> >>> at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
> >>> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
> >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> >>> at
> >>>
>
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
> >>>
> >>
> >> 3
> >>
> >>> 22)
> >>> at
> >>
> >>
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
> >>
> >>> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
> >>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
> >>>
> >>
> >> n
> >>
> >>> FilterChain.java:252)
> >>> at
> >>>
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
> >>>
> >>
> >> h
> >>
> >>> ain.java:173)
> >>> at
> >>>
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
> >>>
> >>
> >> a
> >>
> >>> va:213)
> >>> at
> >>>
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
> >>>
> >>
> >> a
> >>
> >>> va:178)
> >>> at
> >>>
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
> >>>
> >>
> >> 6
> >>
> >>> )
> >>> at
> >>>
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
> >>>
> >>
> >> 5
> >>
> >>> )
> >>> at
> >>>
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
> >>>
> >>
> >> a
> >>
> >>> :107)
> >>> at
> >>>
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> >>>
> >>> at
> >>>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> >>>
> >>> at
> >>>
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
> >>>
> >>
> >> C
> >>
> >>> onnection(Http11BaseProtocol.java:663)
> >>> at
> >>>
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
> >>>
> >>
> >> v
> >>
> >>> a:527)
> >>> at
> >>>
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
> >>>
> >>
> >> o
> >>
> >>> rkerThread.java:80)
> >>> at
> >>>
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
> >>>
> >>
> >> v
> >>
> >>> a:684)
> >>> at java.lang.Thread.run(Unknown Source)
> >>>
> >>> -----Original Message-----
> >>> From: Tim Funk [mailto:funkman@joedog.org]
> >>> Sent: December 6, 2005 6:30 AM
> >>> To: Tomcat Users List
> >>> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
> >>> javax/servlet/ServletContext
> >>>
> >>>
> >>> See - http://tomcat.apache.org/faq/classnotfound.html
> >>>
> >>> Odds are you have your own servlet-api.jar somewhere in the webapp or
> >>
> >> system
> >>
> >>> classpath and that is conflicting with the one in common/lib
> >>> (installed by
> >>> tomcat)
> >>>
> >>> -Tim
> >>>
> >>> John Poley wrote:
> >>>
> >>>
> >>>> Please forgive my intrusion if this is not the proper place to post a
> >>>>
> >>>>
> >>> questoon of this sort. I am new to servlets, and am working on my
> >>> first
> >>> deployment- but I am running in to a problem that I can't find a
> >>> solution
> >>> to. I have installed Tomcat 5.5 and am using Eclipse (as well as a
> >>> tomcat
> >>> plugin) to manage my project. A colleague of mine sent me a war
> >>> file of
> >>> out working projected, which I imported to my IDE. I start tomcat,
> >>> which
> >>> seems to load properly, and attempt to run the project on the
> >>> server- where
> >>> I am faced with the following:
> >>>
> >>>
> >>>> javax.servlet.ServletException: Servlet.init() for servlet
> >>>>
> >>>>
> >>> RequestTranslator threw exception
> >>>
> >>>
> >>>> root cause
> >>>>
> >>>> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> >>>> java.lang.Class.getDeclaredConstructors0(Native Method)
> >>>> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
> >>>> java.lang.Class.getConstructor0(Unknown Source)
> >>>> java.lang.Class.getConstructor(Unknown Source)
> >>>>
> >>>>
> >>>>
> >>>
>
freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
> >>>
> >>
> >> g
> >>
> >>> uration.java:331)
> >>>
> >>>
> >>>
> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
> >>>
> >>>
> >>>
> >>>> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
> >>>>
> >>>>
> >>>>
> >>>
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
> >>>
> >>
> >> 5
> >>
> >>> )
> >>>
> >>>
> >>>
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> >>>
> >>>
> >>>
> >>>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> >>>
> >>>
> >>>
> >>>
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
> >>>
> >>
> >> C
> >>
> >>> onnection(Http11BaseProtocol.java:663)
> >>>
> >>>
> >>>
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
> >>>
> >>
> >> v
> >>
> >>> a:527)
> >>>
> >>>
> >>>
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
> >>>
> >>
> >> o
> >>
> >>> rkerThread.java:80)
> >>>
> >>>
> >>>
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
> >>>
> >>
> >> v
> >>
> >>> a:684)
> >>>
> >>>
> >>>> java.lang.Thread.run(Unknown Source)
> >>>> I am using the most recent J2RE 5 and I am certain that Tomcat's
> >>>>
> >>>>
> >>> servlet-api.jar is within my application's class path. I am not
> >>> sure why
> >>> the source cannot be found. Any helpin locating my problem would be
> >>
> >> greatly
> >>
> >>> appreciated, and I would be happy to prove more information if
> >>> needed (I'm
> >>> not entirely sure what would be helpful). And again, I am sorry if
> >>> this is
> >>> not the place for this kind of question!Happy coding!John
> >>>
> >>>
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> >>> For additional commands, e-mail: users-help@tomcat.apache.org
> >>>
> >>>
> >>>
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> >>> For additional commands, e-mail: users-help@tomcat.apache.org
> >>>
> >>>
> >>>
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> >> For additional commands, e-mail: users-help@tomcat.apache.org
> >>
> >>
> >>
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> >> For additional commands, e-mail: users-help@tomcat.apache.org
> >>
> >
> >
> >
> >
> > INFO: Server startup in 1891 ms
> >
> > Dec 6, 2005 9:59:25 PM org.apache.catalina.core.ApplicationContext log
> >
> > SEVERE: StandardWrapper.Throwable
> >
> > java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> >
> > at java.lang.Class.getDeclaredConstructors0(Native Method)
> >
> > at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
> >
> > at java.lang.Class.getConstructor0(Class.java:2640)
> >
> > at java.lang.Class.getConstructor(Class.java:1629)
> >
> > at
> >
>
freemarker.template.Configuration.setServletContextForTemplateLoading(Config
> uration.java:331)
> >
> >
> > at
> >
verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
> >
> >
> > at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
> >
> > at
> >
>
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:11
> 05)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:130)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:178)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
> )
> >
> >
> > at
> >
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
> )
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :107)
> >
> >
> > at
> >
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> >
> >
> > at
> >
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
> >
> >
> > at
> >
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
> onnection(Http11BaseProtocol.java:667)
> >
> >
> > at
> >
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
> a:527)
> >
> >
> > at
> >
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
> rkerThread.java:80)
> >
> >
> > at
> >
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
> a:684)
> >
> >
> > at java.lang.Thread.run(Thread.java:595)
> >
> >
> >
> > Dec 6, 2005 9:59:25 PM org.apache.catalina.core.StandardWrapperValve
> > invoke
> >
> > SEVERE: Allocate exception for servlet RequestTranslator
> >
> > java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> >
> > at java.lang.Class.getDeclaredConstructors0(Native Method)
> >
> > at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
> >
> > at java.lang.Class.getConstructor0(Class.java:2640)
> >
> > at java.lang.Class.getConstructor(Class.java:1629)
> >
> > at
> >
>
freemarker.template.Configuration.setServletContextForTemplateLoading(Config
> uration.java:331)
> >
> >
> > at
> >
verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
> >
> >
> > at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
> >
> > at
> >
>
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:11
> 05)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:130)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:178)
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
> )
> >
> >
> > at
> >
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
> )
> >
> >
> > at
> >
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :107)
> >
> >
> > at
> >
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> >
> >
> > at
> >
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
> >
> >
> > at
> >
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
> onnection(Http11BaseProtocol.java:667)
> >
> >
> > at
> >
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
> a:527)
> >
> >
> > at
> >
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
> rkerThread.java:80)
> >
> >
> > at
> >
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
> a:684)
> >
> >
> > at java.lang.Thread.run(Thread.java:595)
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> > For additional commands, e-mail: users-help@tomcat.apache.org
> >
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
RE: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by Armand Rock <ro...@gilmore.ca>.
Hello,
Thanks for your help I got it working by scrapping the custom classloader
altogether and calling Class.forName()
to retreive an instance of the desired class.
Thanks again!
-----Original Message-----
From: David Smith [mailto:dns4@cornell.edu]
Sent: December 8, 2005 9:12 AM
To: Tomcat Users List
Subject: Re: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
Ok. I won't pretend to know all the ramifications to using this
ClassFinder class. To my limited understanding, it's a classloader
working without knowledge of Tomcat's classloaders and designed to help
you reference classes stored outside the webapp.
As a test, try removing the ClassFinder class and moving a copy of these
external classes to WEB-INF/classes of your webapp. If that works, you
issue has to do with the way your independent classloader is ignoring
Tomcat's classloader structure.
Anyone else with more experience in custom classloaders care to comment
on this?
--David
Armand Rock wrote:
>I personally have not changed any classpath settings. The classes are
build
>using Eclipse SDK Version 3.1.1 with
>the Tomcat plugin from sysdeo (3.1.0.beta).
>I have noticed that the NoClassDefFoundError occurs on specific pages but
>only the first time
>the pages are loaded, everything else within the page works perfectly after
>I reload the page.
>In every instance that I have issues I'm using a Servlet which in turn
makes
>use of the ClassFinder,
>it first calls a Java file (specific to the current command being run)
>followed by a redirection to a Jsp.
>
>As for ClassFileFinder here is the code. I can't find where this code was
>from but it was originally found online...
>I usually leave credit information at the top but this particuliar class
did
>not contain any.
>
>public class ClassFileFinder extends ClassLoader
>{
> List cpath = new LinkedList();
> Hashtable loadedClasses = new Hashtable();
>
> public void addFile(File f) {
> if(f.isDirectory() || (f.isFile() && f.canRead() &&
> f.getName().endsWith(".jar")))
> cpath.add(f);
> }
>
> public byte[] classData(String className) {
> String cname = className.replace('.', File.separatorChar) + ".class";
> Iterator it = cpath.iterator();
> while(it.hasNext()) {
> File f = (File)it.next();
> try {
> if(f.isDirectory()) {
> File cFile = new File(f, cname);
> if(cFile.isFile()) {
> byte[] buf = new byte[(int)cFile.length()];
> InputStream in = new FileInputStream(cFile);
> int off = 0, l;
> while((l = in.read(buf, off, buf.length - off)) > 0) {
> off += l;
> if(off >= buf.length) break;
> }
> in.read(buf);
> in.close();
> return buf;
> }
>
> } else if (f.isFile()) {
> JarFile jar = new JarFile(f);
> JarEntry ent = jar.getJarEntry(cname);
> if(ent != null) {
>
> byte[] buf = new byte[(int)ent.getSize()];
> int off = 0, l;
> InputStream in = jar.getInputStream(ent);
> while((l = in.read(buf, off, buf.length - off)) > 0) {
> off += l;
> if(off >= buf.length) break;
> }
>
> in.close();
> return buf;
> }
> }
> } catch (IOException e) {
>
> }
> }
> return null;
> }
>
> public Class findClass(String className) throws ClassNotFoundException{
> if (loadedClasses.get(className)!=null) {
> return Class.forName(className);
> }
>
> loadedClasses.put(className, className);
>
> byte[] data = classData(className);
> if(data == null)
> return getParent().loadClass(className);
> else
> return defineClass(className,data,0, data.length);
> }
>}
>
>-----Original Message-----
>From: David Smith [mailto:dns4@cornell.edu]
>Sent: December 7, 2005 7:47 AM
>To: Tomcat Users List
>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>javax/servlet/ServletContext
>
>
> > ...and that servlet-api.jar from tomcat is in the path.
>
>You wouldn't happen to be messing with the classpath at all would you?
>That will cause headaches. Best advise is to leave the classpath alone
>and let tomcat's classloader hierarchy handle finding classes.
>
>Thought 2: Tell me more about this ClassFinder class. It's not a part
>of Java's API and I'm wondering if it's not running it's own classloader
>independant of tomcat's classloader mechanism.
>
>--David
>
>John Poley wrote:
>
>
>
>>Thank you for your comments thus far.
>>I have been unable to solve my problem as well. I even went so far as
>>to start with a machine with no development tools on it, downloading
>>just the elements I required, and then trying to redeploy. I am
>>fairly certain that there are no extra servlet jars anywhere, and that
>>servlet-api.jar from tomcat is in the path. Still I face the
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext error. I
>>am using java 1.5.0_06 and and a 5.5 server. Well, trying to anyway!
>>=) I'll place the error information at the very bottom of this email
>>to avoid pushing down the previous responses too far. Any more ideas
>>would be appreciated!
>>
>>----- Original Message ----- From: "Armand Rock" <ro...@gilmore.ca>
>>To: "Tomcat Users List" <us...@tomcat.apache.org>
>>Sent: Tuesday, December 06, 2005 12:44 PM
>>Subject: RE: Question concerning java.lang.NoClassDefFoundError:
>>javax/servlet/ServletContext
>>
>>
>>
>>
>>>Hello David,
>>>I included all jar & zip files on my computer, including j2ee.jar and
>>>I'm
>>>still having the problem.
>>>I have just noticed a weird behaviour though, if I try to reload the jsp
>>>right after the jsp fails the first
>>>time it seems to run without throwing the exception. If I restart
>>>Tomcat
>>>and try again the problem starts
>>>again. I could get this to work in theory by forcing it to run
>>>through the
>>>code once on startup
>>>but I shouldn't have to do that and I honestly would prefer getting
>>>it to
>>>work as it should.
>>>
>>>-----Original Message-----
>>>From: David Smith [mailto:dns4@cornell.edu]
>>>Sent: December 6, 2005 11:57 AM
>>>To: Tomcat Users List
>>>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>>javax/servlet/ServletContext
>>>
>>>
>>>I take it you also included j2ee.jar in that search?
>>>
>>>--David
>>>
>>>Armand Rock wrote:
>>>
>>>
>>>
>>>>Hi,
>>>>I'm getting the same error. I searched my entire computer for any
>>>>jar/zip
>>>>files containing javax.servlet.ServletContext
>>>>and renamed all of them to ".original" so that they wouldn't be read
>>>>by the
>>>>JVM. I did this to all the files except for the file
>>>>common/lib/servlet-api.jar
>>>>
>>>>I'm still getting the problem.
>>>>
>>>>I'm using java version 1.4.2_10
>>>>
>>>>The code i'm using used to work under Orion version 1.4.5 (I'm now
>>>>using
>>>>Tomcat 5.5)
>>>>The code that eventually throws the exception is basically:
>>>>
>>>>ClassFinder classFinder = new ClassFinder();
>>>>classFinder.addFile("/opt/classes/com/canlink/commands/");
>>>>Class usrClass =
>>>>classFinder.findClass("com.canlink.commands.TestClass");
>>>>
>>>>This line is what throws the exception:
>>>>Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>>>>{Boolean.class});
>>>>
>>>>The stack trace is:
>>>>SEVERE: Servlet.service() for servlet RunCmd threw exception
>>>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>>>at java.lang.Class.getDeclaredMethods0(Native Method)
>>>>at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
>>>>at java.lang.Class.getMethod0(Unknown Source)
>>>>at java.lang.Class.getMethod0(Unknown Source)
>>>>at java.lang.Class.getMethod(Unknown Source)
>>>>at com.canlink.commands.RunCmd.service(RunCmd.java:240)
>>>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>
>
>>>n
>>>
>>>
>>>
>>>>FilterChain.java:252)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>
>
>>>h
>>>
>>>
>>>
>>>>ain.java:173)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
>
>
>>>.
>>>
>>>
>>>
>>>>java:672)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
>
>
>>>s
>>>
>>>
>>>
>>>>patcher.java:463)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
>
>
>>>h
>>>
>>>
>>>
>>>>er.java:398)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
>
>
>>>r
>>>
>>>
>>>
>>>>.java:301)
>>>>at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
>>>>at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>>>at
>>>>
>>>>
>>>>
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
>
>
>>>3
>>>
>>>
>>>
>>>>22)
>>>>at
>>>>
>>>>
>>>org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>>
>>>
>>>
>>>>at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>
>
>>>n
>>>
>>>
>>>
>>>>FilterChain.java:252)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>
>
>>>h
>>>
>>>
>>>
>>>>ain.java:173)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
>
>
>>>a
>>>
>>>
>>>
>>>>va:213)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
>
>
>>>a
>>>
>>>
>>>
>>>>va:178)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
>
>
>>>6
>>>
>>>
>>>
>>>>)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>
>
>>>5
>>>
>>>
>>>
>>>>)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
>
>
>>>a
>>>
>>>
>>>
>>>>:107)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>>>at
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
>
>>>>at
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>
>
>>>C
>>>
>>>
>>>
>>>>onnection(Http11BaseProtocol.java:663)
>>>>at
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:527)
>>>>at
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>
>
>>>o
>>>
>>>
>>>
>>>>rkerThread.java:80)
>>>>at
>>>>
>>>>
>>>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:684)
>>>>at java.lang.Thread.run(Unknown Source)
>>>>
>>>>-----Original Message-----
>>>>From: Tim Funk [mailto:funkman@joedog.org]
>>>>Sent: December 6, 2005 6:30 AM
>>>>To: Tomcat Users List
>>>>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>>>javax/servlet/ServletContext
>>>>
>>>>
>>>>See - http://tomcat.apache.org/faq/classnotfound.html
>>>>
>>>>Odds are you have your own servlet-api.jar somewhere in the webapp or
>>>>
>>>>
>>>system
>>>
>>>
>>>
>>>>classpath and that is conflicting with the one in common/lib
>>>>(installed by
>>>>tomcat)
>>>>
>>>>-Tim
>>>>
>>>>John Poley wrote:
>>>>
>>>>
>>>>
>>>>
>>>>>Please forgive my intrusion if this is not the proper place to post a
>>>>>
>>>>>
>>>>>
>>>>>
>>>>questoon of this sort. I am new to servlets, and am working on my
>>>>first
>>>>deployment- but I am running in to a problem that I can't find a
>>>>solution
>>>>to. I have installed Tomcat 5.5 and am using Eclipse (as well as a
>>>>tomcat
>>>>plugin) to manage my project. A colleague of mine sent me a war
>>>>file of
>>>>out working projected, which I imported to my IDE. I start tomcat,
>>>>which
>>>>seems to load properly, and attempt to run the project on the
>>>>server- where
>>>>I am faced with the following:
>>>>
>>>>
>>>>
>>>>
>>>>>javax.servlet.ServletException: Servlet.init() for servlet
>>>>>
>>>>>
>>>>>
>>>>>
>>>>RequestTranslator threw exception
>>>>
>>>>
>>>>
>>>>
>>>>>root cause
>>>>>
>>>>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>>>>java.lang.Class.getDeclaredConstructors0(Native Method)
>>>>>java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>>>>>java.lang.Class.getConstructor0(Unknown Source)
>>>>>java.lang.Class.getConstructor(Unknown Source)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
>
>
>>>g
>>>
>>>
>>>
>>>>uration.java:331)
>>>>
>>>>
>>>>
>>>>
>>>>
>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
>>>>
>>>>
>>>>
>>>>>verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>
>
>>>5
>>>
>>>
>>>
>>>>)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>>>
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
>
>>>>
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>
>
>>>C
>>>
>>>
>>>
>>>>onnection(Http11BaseProtocol.java:663)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:527)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>
>
>>>o
>>>
>>>
>>>
>>>>rkerThread.java:80)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:684)
>>>>
>>>>
>>>>
>>>>
>>>>>java.lang.Thread.run(Unknown Source)
>>>>>I am using the most recent J2RE 5 and I am certain that Tomcat's
>>>>>
>>>>>
>>>>>
>>>>>
>>>>servlet-api.jar is within my application's class path. I am not
>>>>sure why
>>>>the source cannot be found. Any helpin locating my problem would be
>>>>
>>>>
>>>greatly
>>>
>>>
>>>
>>>>appreciated, and I would be happy to prove more information if
>>>>needed (I'm
>>>>not entirely sure what would be helpful). And again, I am sorry if
>>>>this is
>>>>not the place for this kind of question!Happy coding!John
>>>>
>>>>
>>>>
>>>>---------------------------------------------------------------------
>>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>>
>>>>
>>>>
>>>>---------------------------------------------------------------------
>>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>>
>>>>
>>>>
>>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>
>>
>>INFO: Server startup in 1891 ms
>>
>>Dec 6, 2005 9:59:25 PM org.apache.catalina.core.ApplicationContext log
>>
>>SEVERE: StandardWrapper.Throwable
>>
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>
>>at java.lang.Class.getDeclaredConstructors0(Native Method)
>>
>>at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>>
>>at java.lang.Class.getConstructor0(Class.java:2640)
>>
>>at java.lang.Class.getConstructor(Class.java:1629)
>>
>>at
>>
>>
>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
g
>uration.java:331)
>
>
>>at
>>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>
>>
>>at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1
1
>05)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
a
>va:130)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
a
>va:178)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
6
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
5
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
a
>:107)
>
>
>>at
>>
>>
>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>at
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>>
>>
>>at
>>
>>
>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
C
>onnection(Http11BaseProtocol.java:667)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
v
>a:527)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
o
>rkerThread.java:80)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
v
>a:684)
>
>
>>at java.lang.Thread.run(Thread.java:595)
>>
>>
>>
>>Dec 6, 2005 9:59:25 PM org.apache.catalina.core.StandardWrapperValve
>>invoke
>>
>>SEVERE: Allocate exception for servlet RequestTranslator
>>
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>
>>at java.lang.Class.getDeclaredConstructors0(Native Method)
>>
>>at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>>
>>at java.lang.Class.getConstructor0(Class.java:2640)
>>
>>at java.lang.Class.getConstructor(Class.java:1629)
>>
>>at
>>
>>
>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
g
>uration.java:331)
>
>
>>at
>>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>
>>
>>at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1
1
>05)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
a
>va:130)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
a
>va:178)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
6
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
5
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
a
>:107)
>
>
>>at
>>
>>
>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>at
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>>
>>
>>at
>>
>>
>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
C
>onnection(Http11BaseProtocol.java:667)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
v
>a:527)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
o
>rkerThread.java:80)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
v
>a:684)
>
>
>>at java.lang.Thread.run(Thread.java:595)
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by David Smith <dn...@cornell.edu>.
Ok. I won't pretend to know all the ramifications to using this
ClassFinder class. To my limited understanding, it's a classloader
working without knowledge of Tomcat's classloaders and designed to help
you reference classes stored outside the webapp.
As a test, try removing the ClassFinder class and moving a copy of these
external classes to WEB-INF/classes of your webapp. If that works, you
issue has to do with the way your independent classloader is ignoring
Tomcat's classloader structure.
Anyone else with more experience in custom classloaders care to comment
on this?
--David
Armand Rock wrote:
>I personally have not changed any classpath settings. The classes are build
>using Eclipse SDK Version 3.1.1 with
>the Tomcat plugin from sysdeo (3.1.0.beta).
>I have noticed that the NoClassDefFoundError occurs on specific pages but
>only the first time
>the pages are loaded, everything else within the page works perfectly after
>I reload the page.
>In every instance that I have issues I'm using a Servlet which in turn makes
>use of the ClassFinder,
>it first calls a Java file (specific to the current command being run)
>followed by a redirection to a Jsp.
>
>As for ClassFileFinder here is the code. I can't find where this code was
>from but it was originally found online...
>I usually leave credit information at the top but this particuliar class did
>not contain any.
>
>public class ClassFileFinder extends ClassLoader
>{
> List cpath = new LinkedList();
> Hashtable loadedClasses = new Hashtable();
>
> public void addFile(File f) {
> if(f.isDirectory() || (f.isFile() && f.canRead() &&
> f.getName().endsWith(".jar")))
> cpath.add(f);
> }
>
> public byte[] classData(String className) {
> String cname = className.replace('.', File.separatorChar) + ".class";
> Iterator it = cpath.iterator();
> while(it.hasNext()) {
> File f = (File)it.next();
> try {
> if(f.isDirectory()) {
> File cFile = new File(f, cname);
> if(cFile.isFile()) {
> byte[] buf = new byte[(int)cFile.length()];
> InputStream in = new FileInputStream(cFile);
> int off = 0, l;
> while((l = in.read(buf, off, buf.length - off)) > 0) {
> off += l;
> if(off >= buf.length) break;
> }
> in.read(buf);
> in.close();
> return buf;
> }
>
> } else if (f.isFile()) {
> JarFile jar = new JarFile(f);
> JarEntry ent = jar.getJarEntry(cname);
> if(ent != null) {
>
> byte[] buf = new byte[(int)ent.getSize()];
> int off = 0, l;
> InputStream in = jar.getInputStream(ent);
> while((l = in.read(buf, off, buf.length - off)) > 0) {
> off += l;
> if(off >= buf.length) break;
> }
>
> in.close();
> return buf;
> }
> }
> } catch (IOException e) {
>
> }
> }
> return null;
> }
>
> public Class findClass(String className) throws ClassNotFoundException{
> if (loadedClasses.get(className)!=null) {
> return Class.forName(className);
> }
>
> loadedClasses.put(className, className);
>
> byte[] data = classData(className);
> if(data == null)
> return getParent().loadClass(className);
> else
> return defineClass(className,data,0, data.length);
> }
>}
>
>-----Original Message-----
>From: David Smith [mailto:dns4@cornell.edu]
>Sent: December 7, 2005 7:47 AM
>To: Tomcat Users List
>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>javax/servlet/ServletContext
>
>
> > ...and that servlet-api.jar from tomcat is in the path.
>
>You wouldn't happen to be messing with the classpath at all would you?
>That will cause headaches. Best advise is to leave the classpath alone
>and let tomcat's classloader hierarchy handle finding classes.
>
>Thought 2: Tell me more about this ClassFinder class. It's not a part
>of Java's API and I'm wondering if it's not running it's own classloader
>independant of tomcat's classloader mechanism.
>
>--David
>
>John Poley wrote:
>
>
>
>>Thank you for your comments thus far.
>>I have been unable to solve my problem as well. I even went so far as
>>to start with a machine with no development tools on it, downloading
>>just the elements I required, and then trying to redeploy. I am
>>fairly certain that there are no extra servlet jars anywhere, and that
>>servlet-api.jar from tomcat is in the path. Still I face the
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext error. I
>>am using java 1.5.0_06 and and a 5.5 server. Well, trying to anyway!
>>=) I'll place the error information at the very bottom of this email
>>to avoid pushing down the previous responses too far. Any more ideas
>>would be appreciated!
>>
>>----- Original Message ----- From: "Armand Rock" <ro...@gilmore.ca>
>>To: "Tomcat Users List" <us...@tomcat.apache.org>
>>Sent: Tuesday, December 06, 2005 12:44 PM
>>Subject: RE: Question concerning java.lang.NoClassDefFoundError:
>>javax/servlet/ServletContext
>>
>>
>>
>>
>>>Hello David,
>>>I included all jar & zip files on my computer, including j2ee.jar and
>>>I'm
>>>still having the problem.
>>>I have just noticed a weird behaviour though, if I try to reload the jsp
>>>right after the jsp fails the first
>>>time it seems to run without throwing the exception. If I restart
>>>Tomcat
>>>and try again the problem starts
>>>again. I could get this to work in theory by forcing it to run
>>>through the
>>>code once on startup
>>>but I shouldn't have to do that and I honestly would prefer getting
>>>it to
>>>work as it should.
>>>
>>>-----Original Message-----
>>>From: David Smith [mailto:dns4@cornell.edu]
>>>Sent: December 6, 2005 11:57 AM
>>>To: Tomcat Users List
>>>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>>javax/servlet/ServletContext
>>>
>>>
>>>I take it you also included j2ee.jar in that search?
>>>
>>>--David
>>>
>>>Armand Rock wrote:
>>>
>>>
>>>
>>>>Hi,
>>>>I'm getting the same error. I searched my entire computer for any
>>>>jar/zip
>>>>files containing javax.servlet.ServletContext
>>>>and renamed all of them to ".original" so that they wouldn't be read
>>>>by the
>>>>JVM. I did this to all the files except for the file
>>>>common/lib/servlet-api.jar
>>>>
>>>>I'm still getting the problem.
>>>>
>>>>I'm using java version 1.4.2_10
>>>>
>>>>The code i'm using used to work under Orion version 1.4.5 (I'm now
>>>>using
>>>>Tomcat 5.5)
>>>>The code that eventually throws the exception is basically:
>>>>
>>>>ClassFinder classFinder = new ClassFinder();
>>>>classFinder.addFile("/opt/classes/com/canlink/commands/");
>>>>Class usrClass =
>>>>classFinder.findClass("com.canlink.commands.TestClass");
>>>>
>>>>This line is what throws the exception:
>>>>Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>>>>{Boolean.class});
>>>>
>>>>The stack trace is:
>>>>SEVERE: Servlet.service() for servlet RunCmd threw exception
>>>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>>>at java.lang.Class.getDeclaredMethods0(Native Method)
>>>>at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
>>>>at java.lang.Class.getMethod0(Unknown Source)
>>>>at java.lang.Class.getMethod0(Unknown Source)
>>>>at java.lang.Class.getMethod(Unknown Source)
>>>>at com.canlink.commands.RunCmd.service(RunCmd.java:240)
>>>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>
>
>>>n
>>>
>>>
>>>
>>>>FilterChain.java:252)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>
>
>>>h
>>>
>>>
>>>
>>>>ain.java:173)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
>
>
>>>.
>>>
>>>
>>>
>>>>java:672)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
>
>
>>>s
>>>
>>>
>>>
>>>>patcher.java:463)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
>
>
>>>h
>>>
>>>
>>>
>>>>er.java:398)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
>
>
>>>r
>>>
>>>
>>>
>>>>.java:301)
>>>>at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
>>>>at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>>>at
>>>>
>>>>
>>>>
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
>
>
>>>3
>>>
>>>
>>>
>>>>22)
>>>>at
>>>>
>>>>
>>>org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>>
>>>
>>>
>>>>at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>>>at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>
>
>>>n
>>>
>>>
>>>
>>>>FilterChain.java:252)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>
>
>>>h
>>>
>>>
>>>
>>>>ain.java:173)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
>
>
>>>a
>>>
>>>
>>>
>>>>va:213)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
>
>
>>>a
>>>
>>>
>>>
>>>>va:178)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
>
>
>>>6
>>>
>>>
>>>
>>>>)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>
>
>>>5
>>>
>>>
>>>
>>>>)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
>
>
>>>a
>>>
>>>
>>>
>>>>:107)
>>>>at
>>>>
>>>>
>>>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>>>at
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
>
>>>>at
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>
>
>>>C
>>>
>>>
>>>
>>>>onnection(Http11BaseProtocol.java:663)
>>>>at
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:527)
>>>>at
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>
>
>>>o
>>>
>>>
>>>
>>>>rkerThread.java:80)
>>>>at
>>>>
>>>>
>>>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:684)
>>>>at java.lang.Thread.run(Unknown Source)
>>>>
>>>>-----Original Message-----
>>>>From: Tim Funk [mailto:funkman@joedog.org]
>>>>Sent: December 6, 2005 6:30 AM
>>>>To: Tomcat Users List
>>>>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>>>javax/servlet/ServletContext
>>>>
>>>>
>>>>See - http://tomcat.apache.org/faq/classnotfound.html
>>>>
>>>>Odds are you have your own servlet-api.jar somewhere in the webapp or
>>>>
>>>>
>>>system
>>>
>>>
>>>
>>>>classpath and that is conflicting with the one in common/lib
>>>>(installed by
>>>>tomcat)
>>>>
>>>>-Tim
>>>>
>>>>John Poley wrote:
>>>>
>>>>
>>>>
>>>>
>>>>>Please forgive my intrusion if this is not the proper place to post a
>>>>>
>>>>>
>>>>>
>>>>>
>>>>questoon of this sort. I am new to servlets, and am working on my
>>>>first
>>>>deployment- but I am running in to a problem that I can't find a
>>>>solution
>>>>to. I have installed Tomcat 5.5 and am using Eclipse (as well as a
>>>>tomcat
>>>>plugin) to manage my project. A colleague of mine sent me a war
>>>>file of
>>>>out working projected, which I imported to my IDE. I start tomcat,
>>>>which
>>>>seems to load properly, and attempt to run the project on the
>>>>server- where
>>>>I am faced with the following:
>>>>
>>>>
>>>>
>>>>
>>>>>javax.servlet.ServletException: Servlet.init() for servlet
>>>>>
>>>>>
>>>>>
>>>>>
>>>>RequestTranslator threw exception
>>>>
>>>>
>>>>
>>>>
>>>>>root cause
>>>>>
>>>>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>>>>java.lang.Class.getDeclaredConstructors0(Native Method)
>>>>>java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>>>>>java.lang.Class.getConstructor0(Unknown Source)
>>>>>java.lang.Class.getConstructor(Unknown Source)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
>
>
>>>g
>>>
>>>
>>>
>>>>uration.java:331)
>>>>
>>>>
>>>>
>>>>
>>>>
>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
>>>>
>>>>
>>>>
>>>>>verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>
>
>>>5
>>>
>>>
>>>
>>>>)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>>>
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
>
>>>>
>>>>
>>>>
>>>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>
>
>>>C
>>>
>>>
>>>
>>>>onnection(Http11BaseProtocol.java:663)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:527)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>
>
>>>o
>>>
>>>
>>>
>>>>rkerThread.java:80)
>>>>
>>>>
>>>>
>>>>
>>>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>
>
>>>v
>>>
>>>
>>>
>>>>a:684)
>>>>
>>>>
>>>>
>>>>
>>>>>java.lang.Thread.run(Unknown Source)
>>>>>I am using the most recent J2RE 5 and I am certain that Tomcat's
>>>>>
>>>>>
>>>>>
>>>>>
>>>>servlet-api.jar is within my application's class path. I am not
>>>>sure why
>>>>the source cannot be found. Any helpin locating my problem would be
>>>>
>>>>
>>>greatly
>>>
>>>
>>>
>>>>appreciated, and I would be happy to prove more information if
>>>>needed (I'm
>>>>not entirely sure what would be helpful). And again, I am sorry if
>>>>this is
>>>>not the place for this kind of question!Happy coding!John
>>>>
>>>>
>>>>
>>>>---------------------------------------------------------------------
>>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>>
>>>>
>>>>
>>>>---------------------------------------------------------------------
>>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>>
>>>>
>>>>
>>>>
>>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>>
>>>---------------------------------------------------------------------
>>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>>For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>
>>
>>INFO: Server startup in 1891 ms
>>
>>Dec 6, 2005 9:59:25 PM org.apache.catalina.core.ApplicationContext log
>>
>>SEVERE: StandardWrapper.Throwable
>>
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>
>>at java.lang.Class.getDeclaredConstructors0(Native Method)
>>
>>at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>>
>>at java.lang.Class.getConstructor0(Class.java:2640)
>>
>>at java.lang.Class.getConstructor(Class.java:1629)
>>
>>at
>>
>>
>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Config
>uration.java:331)
>
>
>>at
>>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>
>>
>>at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:11
>05)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
>va:130)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
>va:178)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
>:107)
>
>
>>at
>>
>>
>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>at
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>>
>>
>>at
>>
>>
>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
>onnection(Http11BaseProtocol.java:667)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
>a:527)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
>rkerThread.java:80)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
>a:684)
>
>
>>at java.lang.Thread.run(Thread.java:595)
>>
>>
>>
>>Dec 6, 2005 9:59:25 PM org.apache.catalina.core.StandardWrapperValve
>>invoke
>>
>>SEVERE: Allocate exception for servlet RequestTranslator
>>
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>
>>at java.lang.Class.getDeclaredConstructors0(Native Method)
>>
>>at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>>
>>at java.lang.Class.getConstructor0(Class.java:2640)
>>
>>at java.lang.Class.getConstructor(Class.java:1629)
>>
>>at
>>
>>
>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Config
>uration.java:331)
>
>
>>at
>>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>
>>
>>at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:11
>05)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
>va:130)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
>va:178)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
>)
>
>
>>at
>>
>>
>>
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
>:107)
>
>
>>at
>>
>>
>>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>>at
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>>
>>
>>at
>>
>>
>>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
>onnection(Http11BaseProtocol.java:667)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
>a:527)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
>rkerThread.java:80)
>
>
>>at
>>
>>
>>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
>a:684)
>
>
>>at java.lang.Thread.run(Thread.java:595)
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
RE: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by Armand Rock <ro...@gilmore.ca>.
I personally have not changed any classpath settings. The classes are build
using Eclipse SDK Version 3.1.1 with
the Tomcat plugin from sysdeo (3.1.0.beta).
I have noticed that the NoClassDefFoundError occurs on specific pages but
only the first time
the pages are loaded, everything else within the page works perfectly after
I reload the page.
In every instance that I have issues I'm using a Servlet which in turn makes
use of the ClassFinder,
it first calls a Java file (specific to the current command being run)
followed by a redirection to a Jsp.
As for ClassFileFinder here is the code. I can't find where this code was
from but it was originally found online...
I usually leave credit information at the top but this particuliar class did
not contain any.
public class ClassFileFinder extends ClassLoader
{
List cpath = new LinkedList();
Hashtable loadedClasses = new Hashtable();
public void addFile(File f) {
if(f.isDirectory() || (f.isFile() && f.canRead() &&
f.getName().endsWith(".jar")))
cpath.add(f);
}
public byte[] classData(String className) {
String cname = className.replace('.', File.separatorChar) + ".class";
Iterator it = cpath.iterator();
while(it.hasNext()) {
File f = (File)it.next();
try {
if(f.isDirectory()) {
File cFile = new File(f, cname);
if(cFile.isFile()) {
byte[] buf = new byte[(int)cFile.length()];
InputStream in = new FileInputStream(cFile);
int off = 0, l;
while((l = in.read(buf, off, buf.length - off)) > 0) {
off += l;
if(off >= buf.length) break;
}
in.read(buf);
in.close();
return buf;
}
} else if (f.isFile()) {
JarFile jar = new JarFile(f);
JarEntry ent = jar.getJarEntry(cname);
if(ent != null) {
byte[] buf = new byte[(int)ent.getSize()];
int off = 0, l;
InputStream in = jar.getInputStream(ent);
while((l = in.read(buf, off, buf.length - off)) > 0) {
off += l;
if(off >= buf.length) break;
}
in.close();
return buf;
}
}
} catch (IOException e) {
}
}
return null;
}
public Class findClass(String className) throws ClassNotFoundException{
if (loadedClasses.get(className)!=null) {
return Class.forName(className);
}
loadedClasses.put(className, className);
byte[] data = classData(className);
if(data == null)
return getParent().loadClass(className);
else
return defineClass(className,data,0, data.length);
}
}
-----Original Message-----
From: David Smith [mailto:dns4@cornell.edu]
Sent: December 7, 2005 7:47 AM
To: Tomcat Users List
Subject: Re: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
> ...and that servlet-api.jar from tomcat is in the path.
You wouldn't happen to be messing with the classpath at all would you?
That will cause headaches. Best advise is to leave the classpath alone
and let tomcat's classloader hierarchy handle finding classes.
Thought 2: Tell me more about this ClassFinder class. It's not a part
of Java's API and I'm wondering if it's not running it's own classloader
independant of tomcat's classloader mechanism.
--David
John Poley wrote:
> Thank you for your comments thus far.
> I have been unable to solve my problem as well. I even went so far as
> to start with a machine with no development tools on it, downloading
> just the elements I required, and then trying to redeploy. I am
> fairly certain that there are no extra servlet jars anywhere, and that
> servlet-api.jar from tomcat is in the path. Still I face the
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext error. I
> am using java 1.5.0_06 and and a 5.5 server. Well, trying to anyway!
> =) I'll place the error information at the very bottom of this email
> to avoid pushing down the previous responses too far. Any more ideas
> would be appreciated!
>
> ----- Original Message ----- From: "Armand Rock" <ro...@gilmore.ca>
> To: "Tomcat Users List" <us...@tomcat.apache.org>
> Sent: Tuesday, December 06, 2005 12:44 PM
> Subject: RE: Question concerning java.lang.NoClassDefFoundError:
> javax/servlet/ServletContext
>
>
>> Hello David,
>> I included all jar & zip files on my computer, including j2ee.jar and
>> I'm
>> still having the problem.
>> I have just noticed a weird behaviour though, if I try to reload the jsp
>> right after the jsp fails the first
>> time it seems to run without throwing the exception. If I restart
>> Tomcat
>> and try again the problem starts
>> again. I could get this to work in theory by forcing it to run
>> through the
>> code once on startup
>> but I shouldn't have to do that and I honestly would prefer getting
>> it to
>> work as it should.
>>
>> -----Original Message-----
>> From: David Smith [mailto:dns4@cornell.edu]
>> Sent: December 6, 2005 11:57 AM
>> To: Tomcat Users List
>> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>> javax/servlet/ServletContext
>>
>>
>> I take it you also included j2ee.jar in that search?
>>
>> --David
>>
>> Armand Rock wrote:
>>
>>> Hi,
>>> I'm getting the same error. I searched my entire computer for any
>>> jar/zip
>>> files containing javax.servlet.ServletContext
>>> and renamed all of them to ".original" so that they wouldn't be read
>>> by the
>>> JVM. I did this to all the files except for the file
>>> common/lib/servlet-api.jar
>>>
>>> I'm still getting the problem.
>>>
>>> I'm using java version 1.4.2_10
>>>
>>> The code i'm using used to work under Orion version 1.4.5 (I'm now
>>> using
>>> Tomcat 5.5)
>>> The code that eventually throws the exception is basically:
>>>
>>> ClassFinder classFinder = new ClassFinder();
>>> classFinder.addFile("/opt/classes/com/canlink/commands/");
>>> Class usrClass =
>>> classFinder.findClass("com.canlink.commands.TestClass");
>>>
>>> This line is what throws the exception:
>>> Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>>> {Boolean.class});
>>>
>>> The stack trace is:
>>> SEVERE: Servlet.service() for servlet RunCmd threw exception
>>> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>> at java.lang.Class.getDeclaredMethods0(Native Method)
>>> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
>>> at java.lang.Class.getMethod0(Unknown Source)
>>> at java.lang.Class.getMethod0(Unknown Source)
>>> at java.lang.Class.getMethod(Unknown Source)
>>> at com.canlink.commands.RunCmd.service(RunCmd.java:240)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>> at
>>>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>>>
>>
>> n
>>
>>> FilterChain.java:252)
>>> at
>>>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>>>
>>
>> h
>>
>>> ain.java:173)
>>> at
>>>
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
>>>
>>
>> .
>>
>>> java:672)
>>> at
>>>
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
>>>
>>
>> s
>>
>>> patcher.java:463)
>>> at
>>>
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
>>>
>>
>> h
>>
>>> er.java:398)
>>> at
>>>
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
>>>
>>
>> r
>>
>>> .java:301)
>>> at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
>>> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>> at
>>>
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
>>>
>>
>> 3
>>
>>> 22)
>>> at
>>
>> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>
>>> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>> at
>>>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>>>
>>
>> n
>>
>>> FilterChain.java:252)
>>> at
>>>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>>>
>>
>> h
>>
>>> ain.java:173)
>>> at
>>>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
>>>
>>
>> a
>>
>>> va:213)
>>> at
>>>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
>>>
>>
>> a
>>
>>> va:178)
>>> at
>>>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
>>>
>>
>> 6
>>
>>> )
>>> at
>>>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>>>
>>
>> 5
>>
>>> )
>>> at
>>>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
>>>
>>
>> a
>>
>>> :107)
>>> at
>>>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>>
>>> at
>>>
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>>
>>> at
>>>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>>>
>>
>> C
>>
>>> onnection(Http11BaseProtocol.java:663)
>>> at
>>>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>>>
>>
>> v
>>
>>> a:527)
>>> at
>>>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>>>
>>
>> o
>>
>>> rkerThread.java:80)
>>> at
>>>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>>>
>>
>> v
>>
>>> a:684)
>>> at java.lang.Thread.run(Unknown Source)
>>>
>>> -----Original Message-----
>>> From: Tim Funk [mailto:funkman@joedog.org]
>>> Sent: December 6, 2005 6:30 AM
>>> To: Tomcat Users List
>>> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>> javax/servlet/ServletContext
>>>
>>>
>>> See - http://tomcat.apache.org/faq/classnotfound.html
>>>
>>> Odds are you have your own servlet-api.jar somewhere in the webapp or
>>
>> system
>>
>>> classpath and that is conflicting with the one in common/lib
>>> (installed by
>>> tomcat)
>>>
>>> -Tim
>>>
>>> John Poley wrote:
>>>
>>>
>>>> Please forgive my intrusion if this is not the proper place to post a
>>>>
>>>>
>>> questoon of this sort. I am new to servlets, and am working on my
>>> first
>>> deployment- but I am running in to a problem that I can't find a
>>> solution
>>> to. I have installed Tomcat 5.5 and am using Eclipse (as well as a
>>> tomcat
>>> plugin) to manage my project. A colleague of mine sent me a war
>>> file of
>>> out working projected, which I imported to my IDE. I start tomcat,
>>> which
>>> seems to load properly, and attempt to run the project on the
>>> server- where
>>> I am faced with the following:
>>>
>>>
>>>> javax.servlet.ServletException: Servlet.init() for servlet
>>>>
>>>>
>>> RequestTranslator threw exception
>>>
>>>
>>>> root cause
>>>>
>>>> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>>> java.lang.Class.getDeclaredConstructors0(Native Method)
>>>> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>>>> java.lang.Class.getConstructor0(Unknown Source)
>>>> java.lang.Class.getConstructor(Unknown Source)
>>>>
>>>>
>>>>
>>>
freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
>>>
>>
>> g
>>
>>> uration.java:331)
>>>
>>>
>>>
verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>>
>>>
>>>
>>>> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>>>
>>>>
>>>>
>>>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>>>
>>
>> 5
>>
>>> )
>>>
>>>
>>>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>>
>>>
>>>
>>>
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>>
>>>
>>>
>>>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>>>
>>
>> C
>>
>>> onnection(Http11BaseProtocol.java:663)
>>>
>>>
>>>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>>>
>>
>> v
>>
>>> a:527)
>>>
>>>
>>>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>>>
>>
>> o
>>
>>> rkerThread.java:80)
>>>
>>>
>>>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>>>
>>
>> v
>>
>>> a:684)
>>>
>>>
>>>> java.lang.Thread.run(Unknown Source)
>>>> I am using the most recent J2RE 5 and I am certain that Tomcat's
>>>>
>>>>
>>> servlet-api.jar is within my application's class path. I am not
>>> sure why
>>> the source cannot be found. Any helpin locating my problem would be
>>
>> greatly
>>
>>> appreciated, and I would be happy to prove more information if
>>> needed (I'm
>>> not entirely sure what would be helpful). And again, I am sorry if
>>> this is
>>> not the place for this kind of question!Happy coding!John
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>
>
>
> INFO: Server startup in 1891 ms
>
> Dec 6, 2005 9:59:25 PM org.apache.catalina.core.ApplicationContext log
>
> SEVERE: StandardWrapper.Throwable
>
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>
> at java.lang.Class.getDeclaredConstructors0(Native Method)
>
> at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>
> at java.lang.Class.getConstructor0(Class.java:2640)
>
> at java.lang.Class.getConstructor(Class.java:1629)
>
> at
>
freemarker.template.Configuration.setServletContextForTemplateLoading(Config
uration.java:331)
>
>
> at
> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
> at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>
> at
>
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:11
05)
>
>
> at
>
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
> at
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:130)
>
>
> at
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
>
>
> at
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
>
>
> at
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
>
>
> at
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:107)
>
>
> at
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>
>
> at
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
onnection(Http11BaseProtocol.java:667)
>
>
> at
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:527)
>
>
> at
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
>
>
> at
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
>
>
> at java.lang.Thread.run(Thread.java:595)
>
>
>
> Dec 6, 2005 9:59:25 PM org.apache.catalina.core.StandardWrapperValve
> invoke
>
> SEVERE: Allocate exception for servlet RequestTranslator
>
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>
> at java.lang.Class.getDeclaredConstructors0(Native Method)
>
> at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>
> at java.lang.Class.getConstructor0(Class.java:2640)
>
> at java.lang.Class.getConstructor(Class.java:1629)
>
> at
>
freemarker.template.Configuration.setServletContextForTemplateLoading(Config
uration.java:331)
>
>
> at
> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
> at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>
> at
>
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:11
05)
>
>
> at
>
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
> at
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:130)
>
>
> at
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
>
>
> at
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
>
>
> at
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
>
>
> at
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:107)
>
>
> at
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>
>
> at
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
onnection(Http11BaseProtocol.java:667)
>
>
> at
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:527)
>
>
> at
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
>
>
> at
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
>
>
> at java.lang.Thread.run(Thread.java:595)
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by David Smith <dn...@cornell.edu>.
> ...and that servlet-api.jar from tomcat is in the path.
You wouldn't happen to be messing with the classpath at all would you?
That will cause headaches. Best advise is to leave the classpath alone
and let tomcat's classloader hierarchy handle finding classes.
Thought 2: Tell me more about this ClassFinder class. It's not a part
of Java's API and I'm wondering if it's not running it's own classloader
independant of tomcat's classloader mechanism.
--David
John Poley wrote:
> Thank you for your comments thus far.
> I have been unable to solve my problem as well. I even went so far as
> to start with a machine with no development tools on it, downloading
> just the elements I required, and then trying to redeploy. I am
> fairly certain that there are no extra servlet jars anywhere, and that
> servlet-api.jar from tomcat is in the path. Still I face the
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext error. I
> am using java 1.5.0_06 and and a 5.5 server. Well, trying to anyway!
> =) I'll place the error information at the very bottom of this email
> to avoid pushing down the previous responses too far. Any more ideas
> would be appreciated!
>
> ----- Original Message ----- From: "Armand Rock" <ro...@gilmore.ca>
> To: "Tomcat Users List" <us...@tomcat.apache.org>
> Sent: Tuesday, December 06, 2005 12:44 PM
> Subject: RE: Question concerning java.lang.NoClassDefFoundError:
> javax/servlet/ServletContext
>
>
>> Hello David,
>> I included all jar & zip files on my computer, including j2ee.jar and
>> I'm
>> still having the problem.
>> I have just noticed a weird behaviour though, if I try to reload the jsp
>> right after the jsp fails the first
>> time it seems to run without throwing the exception. If I restart
>> Tomcat
>> and try again the problem starts
>> again. I could get this to work in theory by forcing it to run
>> through the
>> code once on startup
>> but I shouldn't have to do that and I honestly would prefer getting
>> it to
>> work as it should.
>>
>> -----Original Message-----
>> From: David Smith [mailto:dns4@cornell.edu]
>> Sent: December 6, 2005 11:57 AM
>> To: Tomcat Users List
>> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>> javax/servlet/ServletContext
>>
>>
>> I take it you also included j2ee.jar in that search?
>>
>> --David
>>
>> Armand Rock wrote:
>>
>>> Hi,
>>> I'm getting the same error. I searched my entire computer for any
>>> jar/zip
>>> files containing javax.servlet.ServletContext
>>> and renamed all of them to ".original" so that they wouldn't be read
>>> by the
>>> JVM. I did this to all the files except for the file
>>> common/lib/servlet-api.jar
>>>
>>> I'm still getting the problem.
>>>
>>> I'm using java version 1.4.2_10
>>>
>>> The code i'm using used to work under Orion version 1.4.5 (I'm now
>>> using
>>> Tomcat 5.5)
>>> The code that eventually throws the exception is basically:
>>>
>>> ClassFinder classFinder = new ClassFinder();
>>> classFinder.addFile("/opt/classes/com/canlink/commands/");
>>> Class usrClass =
>>> classFinder.findClass("com.canlink.commands.TestClass");
>>>
>>> This line is what throws the exception:
>>> Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>>> {Boolean.class});
>>>
>>> The stack trace is:
>>> SEVERE: Servlet.service() for servlet RunCmd threw exception
>>> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>> at java.lang.Class.getDeclaredMethods0(Native Method)
>>> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
>>> at java.lang.Class.getMethod0(Unknown Source)
>>> at java.lang.Class.getMethod0(Unknown Source)
>>> at java.lang.Class.getMethod(Unknown Source)
>>> at com.canlink.commands.RunCmd.service(RunCmd.java:240)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>>>
>>
>> n
>>
>>> FilterChain.java:252)
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>>>
>>
>> h
>>
>>> ain.java:173)
>>> at
>>> org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
>>>
>>
>> .
>>
>>> java:672)
>>> at
>>> org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
>>>
>>
>> s
>>
>>> patcher.java:463)
>>> at
>>> org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
>>>
>>
>> h
>>
>>> er.java:398)
>>> at
>>> org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
>>>
>>
>> r
>>
>>> .java:301)
>>> at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
>>> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>> at
>>> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
>>>
>>
>> 3
>>
>>> 22)
>>> at
>>
>> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>>
>>> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
>>>
>>
>> n
>>
>>> FilterChain.java:252)
>>> at
>>> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
>>>
>>
>> h
>>
>>> ain.java:173)
>>> at
>>> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
>>>
>>
>> a
>>
>>> va:213)
>>> at
>>> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
>>>
>>
>> a
>>
>>> va:178)
>>> at
>>> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
>>>
>>
>> 6
>>
>>> )
>>> at
>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>>>
>>
>> 5
>>
>>> )
>>> at
>>> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
>>>
>>
>> a
>>
>>> :107)
>>> at
>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>>
>>> at
>>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>>
>>> at
>>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>>>
>>
>> C
>>
>>> onnection(Http11BaseProtocol.java:663)
>>> at
>>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>>>
>>
>> v
>>
>>> a:527)
>>> at
>>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>>>
>>
>> o
>>
>>> rkerThread.java:80)
>>> at
>>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>>>
>>
>> v
>>
>>> a:684)
>>> at java.lang.Thread.run(Unknown Source)
>>>
>>> -----Original Message-----
>>> From: Tim Funk [mailto:funkman@joedog.org]
>>> Sent: December 6, 2005 6:30 AM
>>> To: Tomcat Users List
>>> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>> javax/servlet/ServletContext
>>>
>>>
>>> See - http://tomcat.apache.org/faq/classnotfound.html
>>>
>>> Odds are you have your own servlet-api.jar somewhere in the webapp or
>>
>> system
>>
>>> classpath and that is conflicting with the one in common/lib
>>> (installed by
>>> tomcat)
>>>
>>> -Tim
>>>
>>> John Poley wrote:
>>>
>>>
>>>> Please forgive my intrusion if this is not the proper place to post a
>>>>
>>>>
>>> questoon of this sort. I am new to servlets, and am working on my
>>> first
>>> deployment- but I am running in to a problem that I can't find a
>>> solution
>>> to. I have installed Tomcat 5.5 and am using Eclipse (as well as a
>>> tomcat
>>> plugin) to manage my project. A colleague of mine sent me a war
>>> file of
>>> out working projected, which I imported to my IDE. I start tomcat,
>>> which
>>> seems to load properly, and attempt to run the project on the
>>> server- where
>>> I am faced with the following:
>>>
>>>
>>>> javax.servlet.ServletException: Servlet.init() for servlet
>>>>
>>>>
>>> RequestTranslator threw exception
>>>
>>>
>>>> root cause
>>>>
>>>> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>>> java.lang.Class.getDeclaredConstructors0(Native Method)
>>>> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>>>> java.lang.Class.getConstructor0(Unknown Source)
>>>> java.lang.Class.getConstructor(Unknown Source)
>>>>
>>>>
>>>>
>>> freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
>>>
>>
>> g
>>
>>> uration.java:331)
>>>
>>>
>>> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>>
>>>
>>>
>>>> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>>>
>>>>
>>>>
>>> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
>>>
>>
>> 5
>>
>>> )
>>>
>>>
>>> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>>
>>>
>>>
>>> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>>
>>>
>>>
>>> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
>>>
>>
>> C
>>
>>> onnection(Http11BaseProtocol.java:663)
>>>
>>>
>>> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
>>>
>>
>> v
>>
>>> a:527)
>>>
>>>
>>> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
>>>
>>
>> o
>>
>>> rkerThread.java:80)
>>>
>>>
>>> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
>>>
>>
>> v
>>
>>> a:684)
>>>
>>>
>>>> java.lang.Thread.run(Unknown Source)
>>>> I am using the most recent J2RE 5 and I am certain that Tomcat's
>>>>
>>>>
>>> servlet-api.jar is within my application's class path. I am not
>>> sure why
>>> the source cannot be found. Any helpin locating my problem would be
>>
>> greatly
>>
>>> appreciated, and I would be happy to prove more information if
>>> needed (I'm
>>> not entirely sure what would be helpful). And again, I am sorry if
>>> this is
>>> not the place for this kind of question!Happy coding!John
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>> For additional commands, e-mail: users-help@tomcat.apache.org
>>>
>>>
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>> For additional commands, e-mail: users-help@tomcat.apache.org
>>
>
>
>
>
> INFO: Server startup in 1891 ms
>
> Dec 6, 2005 9:59:25 PM org.apache.catalina.core.ApplicationContext log
>
> SEVERE: StandardWrapper.Throwable
>
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>
> at java.lang.Class.getDeclaredConstructors0(Native Method)
>
> at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>
> at java.lang.Class.getConstructor0(Class.java:2640)
>
> at java.lang.Class.getConstructor(Class.java:1629)
>
> at
> freemarker.template.Configuration.setServletContextForTemplateLoading(Configuration.java:331)
>
>
> at
> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
> at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>
> at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
>
>
> at
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
>
>
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
>
>
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
>
>
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
>
>
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
>
>
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>
>
> at
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
>
>
> at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
>
>
> at
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
>
>
> at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
>
>
> at java.lang.Thread.run(Thread.java:595)
>
>
>
> Dec 6, 2005 9:59:25 PM org.apache.catalina.core.StandardWrapperValve
> invoke
>
> SEVERE: Allocate exception for servlet RequestTranslator
>
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>
> at java.lang.Class.getDeclaredConstructors0(Native Method)
>
> at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
>
> at java.lang.Class.getConstructor0(Class.java:2640)
>
> at java.lang.Class.getConstructor(Class.java:1629)
>
> at
> freemarker.template.Configuration.setServletContextForTemplateLoading(Configuration.java:331)
>
>
> at
> verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
> at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>
> at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
>
>
> at
> org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
>
>
> at
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
>
>
> at
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
>
>
> at
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
>
>
> at
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
>
>
> at
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
>
>
> at
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
> at
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
>
>
> at
> org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
>
>
> at
> org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
>
>
> at
> org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
>
>
> at
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
>
>
> at java.lang.Thread.run(Thread.java:595)
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org
Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by John Poley <jo...@jpoley.com>.
Thank you for your comments thus far.
I have been unable to solve my problem as well. I even went so far as to
start with a machine with no development tools on it, downloading just the
elements I required, and then trying to redeploy. I am fairly certain that
there are no extra servlet jars anywhere, and that servlet-api.jar from
tomcat is in the path. Still I face the java.lang.NoClassDefFoundError:
javax/servlet/ServletContext error. I am using java 1.5.0_06 and and a 5.5
server. Well, trying to anyway! =) I'll place the error information at
the very bottom of this email to avoid pushing down the previous responses
too far. Any more ideas would be appreciated!
----- Original Message -----
From: "Armand Rock" <ro...@gilmore.ca>
To: "Tomcat Users List" <us...@tomcat.apache.org>
Sent: Tuesday, December 06, 2005 12:44 PM
Subject: RE: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
> Hello David,
> I included all jar & zip files on my computer, including j2ee.jar and I'm
> still having the problem.
> I have just noticed a weird behaviour though, if I try to reload the jsp
> right after the jsp fails the first
> time it seems to run without throwing the exception. If I restart Tomcat
> and try again the problem starts
> again. I could get this to work in theory by forcing it to run through
> the
> code once on startup
> but I shouldn't have to do that and I honestly would prefer getting it to
> work as it should.
>
> -----Original Message-----
> From: David Smith [mailto:dns4@cornell.edu]
> Sent: December 6, 2005 11:57 AM
> To: Tomcat Users List
> Subject: Re: Question concerning java.lang.NoClassDefFoundError:
> javax/servlet/ServletContext
>
>
> I take it you also included j2ee.jar in that search?
>
> --David
>
> Armand Rock wrote:
>
>>Hi,
>>I'm getting the same error. I searched my entire computer for any jar/zip
>>files containing javax.servlet.ServletContext
>>and renamed all of them to ".original" so that they wouldn't be read by
>>the
>>JVM. I did this to all the files except for the file
>>common/lib/servlet-api.jar
>>
>>I'm still getting the problem.
>>
>>I'm using java version 1.4.2_10
>>
>>The code i'm using used to work under Orion version 1.4.5 (I'm now using
>>Tomcat 5.5)
>>The code that eventually throws the exception is basically:
>>
>>ClassFinder classFinder = new ClassFinder();
>>classFinder.addFile("/opt/classes/com/canlink/commands/");
>>Class usrClass = classFinder.findClass("com.canlink.commands.TestClass");
>>
>>This line is what throws the exception:
>> Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>>{Boolean.class});
>>
>>The stack trace is:
>>SEVERE: Servlet.service() for servlet RunCmd threw exception
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>> at java.lang.Class.getDeclaredMethods0(Native Method)
>> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
>> at java.lang.Class.getMethod0(Unknown Source)
>> at java.lang.Class.getMethod0(Unknown Source)
>> at java.lang.Class.getMethod(Unknown Source)
>> at com.canlink.commands.RunCmd.service(RunCmd.java:240)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>> at
>>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
> n
>>FilterChain.java:252)
>> at
>>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
> h
>>ain.java:173)
>> at
>>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
> .
>>java:672)
>> at
>>org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
> s
>>patcher.java:463)
>> at
>>org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
> h
>>er.java:398)
>> at
>>org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
> r
>>.java:301)
>> at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
>> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>> at
>>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
> 3
>>22)
>> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
>> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
>> at
>>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
> n
>>FilterChain.java:252)
>> at
>>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
> h
>>ain.java:173)
>> at
>>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
> a
>>va:213)
>> at
>>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
> a
>>va:178)
>> at
>>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
> 6
>>)
>> at
>>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
> 5
>>)
>> at
>>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
> a
>>:107)
>> at
>>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>> at
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>> at
>>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
> C
>>onnection(Http11BaseProtocol.java:663)
>> at
>>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
> v
>>a:527)
>> at
>>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
> o
>>rkerThread.java:80)
>> at
>>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
> v
>>a:684)
>> at java.lang.Thread.run(Unknown Source)
>>
>>-----Original Message-----
>>From: Tim Funk [mailto:funkman@joedog.org]
>>Sent: December 6, 2005 6:30 AM
>>To: Tomcat Users List
>>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>>javax/servlet/ServletContext
>>
>>
>>See - http://tomcat.apache.org/faq/classnotfound.html
>>
>>Odds are you have your own servlet-api.jar somewhere in the webapp or
> system
>>classpath and that is conflicting with the one in common/lib (installed by
>>tomcat)
>>
>>-Tim
>>
>>John Poley wrote:
>>
>>
>>>Please forgive my intrusion if this is not the proper place to post a
>>>
>>>
>>questoon of this sort. I am new to servlets, and am working on my first
>>deployment- but I am running in to a problem that I can't find a solution
>>to. I have installed Tomcat 5.5 and am using Eclipse (as well as a tomcat
>>plugin) to manage my project. A colleague of mine sent me a war file of
>>out working projected, which I imported to my IDE. I start tomcat, which
>>seems to load properly, and attempt to run the project on the server-
>>where
>>I am faced with the following:
>>
>>
>>>javax.servlet.ServletException: Servlet.init() for servlet
>>>
>>>
>>RequestTranslator threw exception
>>
>>
>>>root cause
>>>
>>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>>> java.lang.Class.getDeclaredConstructors0(Native Method)
>>> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>>> java.lang.Class.getConstructor0(Unknown Source)
>>> java.lang.Class.getConstructor(Unknown Source)
>>>
>>>
>>>
>>freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
> g
>>uration.java:331)
>>
>>
>>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>>
>>
>>> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>>
>>>
>>>
>>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
> 5
>>)
>>
>>
>>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>>
>>
>>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>>
>>
>>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
> C
>>onnection(Http11BaseProtocol.java:663)
>>
>>
>>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
> v
>>a:527)
>>
>>
>>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
> o
>>rkerThread.java:80)
>>
>>
>>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
> v
>>a:684)
>>
>>
>>> java.lang.Thread.run(Unknown Source)
>>>I am using the most recent J2RE 5 and I am certain that Tomcat's
>>>
>>>
>>servlet-api.jar is within my application's class path. I am not sure why
>>the source cannot be found. Any helpin locating my problem would be
> greatly
>>appreciated, and I would be happy to prove more information if needed (I'm
>>not entirely sure what would be helpful). And again, I am sorry if this
>>is
>>not the place for this kind of question!Happy coding!John
>>
>>
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>>
>>---------------------------------------------------------------------
>>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>>For additional commands, e-mail: users-help@tomcat.apache.org
>>
>>
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
INFO: Server startup in 1891 ms
Dec 6, 2005 9:59:25 PM org.apache.catalina.core.ApplicationContext log
SEVERE: StandardWrapper.Throwable
java.lang.NoClassDefFoundError: javax/servlet/ServletContext
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
at java.lang.Class.getConstructor0(Class.java:2640)
at java.lang.Class.getConstructor(Class.java:1629)
at
freemarker.template.Configuration.setServletContextForTemplateLoading(Configuration.java:331)
at
verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
Dec 6, 2005 9:59:25 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Allocate exception for servlet RequestTranslator
java.lang.NoClassDefFoundError: javax/servlet/ServletContext
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2328)
at java.lang.Class.getConstructor0(Class.java:2640)
at java.lang.Class.getConstructor(Class.java:1629)
at
freemarker.template.Configuration.setServletContextForTemplateLoading(Configuration.java:331)
at
verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
at verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1105)
at
org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:757)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:130)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:667)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
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Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by Chris Birch <cp...@mac.com>.
NoClassDefinition errors are normally thrown if the class or JAR isn't
in the classpath, the only other time this happens is when the
ClassLoader isn't able to load the class path because an exception is
thrown on any static initialisers.
(This is conjecture...) It may be the ServletContext has a static { ...
} block that is throwing an error for some reason, the class can't be
loaded and is therefore not available, hence the NoClassDefinition
found error.
However, I don't understand why your code is moaning about
ServletContext when it doesn't look like you are anywhere near it.
Kind Regards,
Chris.
On 6 Dec 2005, at 17:44, Armand Rock wrote:
> Hello David,
> I included all jar & zip files on my computer, including j2ee.jar and
> I'm
> still having the problem.
> I have just noticed a weird behaviour though, if I try to reload the
> jsp
> right after the jsp fails the first
> time it seems to run without throwing the exception. If I restart
> Tomcat
> and try again the problem starts
> again. I could get this to work in theory by forcing it to run
> through the
> code once on startup
> but I shouldn't have to do that and I honestly would prefer getting it
> to
> work as it should.
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RE: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by Armand Rock <ro...@gilmore.ca>.
Hello David,
I included all jar & zip files on my computer, including j2ee.jar and I'm
still having the problem.
I have just noticed a weird behaviour though, if I try to reload the jsp
right after the jsp fails the first
time it seems to run without throwing the exception. If I restart Tomcat
and try again the problem starts
again. I could get this to work in theory by forcing it to run through the
code once on startup
but I shouldn't have to do that and I honestly would prefer getting it to
work as it should.
-----Original Message-----
From: David Smith [mailto:dns4@cornell.edu]
Sent: December 6, 2005 11:57 AM
To: Tomcat Users List
Subject: Re: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
I take it you also included j2ee.jar in that search?
--David
Armand Rock wrote:
>Hi,
>I'm getting the same error. I searched my entire computer for any jar/zip
>files containing javax.servlet.ServletContext
>and renamed all of them to ".original" so that they wouldn't be read by the
>JVM. I did this to all the files except for the file
>common/lib/servlet-api.jar
>
>I'm still getting the problem.
>
>I'm using java version 1.4.2_10
>
>The code i'm using used to work under Orion version 1.4.5 (I'm now using
>Tomcat 5.5)
>The code that eventually throws the exception is basically:
>
>ClassFinder classFinder = new ClassFinder();
>classFinder.addFile("/opt/classes/com/canlink/commands/");
>Class usrClass = classFinder.findClass("com.canlink.commands.TestClass");
>
>This line is what throws the exception:
> Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>{Boolean.class});
>
>The stack trace is:
>SEVERE: Servlet.service() for servlet RunCmd threw exception
>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
> at java.lang.Class.getMethod0(Unknown Source)
> at java.lang.Class.getMethod0(Unknown Source)
> at java.lang.Class.getMethod(Unknown Source)
> at com.canlink.commands.RunCmd.service(RunCmd.java:240)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
n
>FilterChain.java:252)
> at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
h
>ain.java:173)
> at
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher
.
>java:672)
> at
>org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDi
s
>patcher.java:463)
> at
>org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatc
h
>er.java:398)
> at
>org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatche
r
>.java:301)
> at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:
3
>22)
> at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Applicatio
n
>FilterChain.java:252)
> at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterC
h
>ain.java:173)
> at
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.j
a
>va:213)
> at
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.j
a
>va:178)
> at
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:12
6
>)
> at
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
5
>)
> at
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.jav
a
>:107)
> at
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> at
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> at
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
C
>onnection(Http11BaseProtocol.java:663)
> at
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
v
>a:527)
> at
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
o
>rkerThread.java:80)
> at
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
v
>a:684)
> at java.lang.Thread.run(Unknown Source)
>
>-----Original Message-----
>From: Tim Funk [mailto:funkman@joedog.org]
>Sent: December 6, 2005 6:30 AM
>To: Tomcat Users List
>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>javax/servlet/ServletContext
>
>
>See - http://tomcat.apache.org/faq/classnotfound.html
>
>Odds are you have your own servlet-api.jar somewhere in the webapp or
system
>classpath and that is conflicting with the one in common/lib (installed by
>tomcat)
>
>-Tim
>
>John Poley wrote:
>
>
>>Please forgive my intrusion if this is not the proper place to post a
>>
>>
>questoon of this sort. I am new to servlets, and am working on my first
>deployment- but I am running in to a problem that I can't find a solution
>to. I have installed Tomcat 5.5 and am using Eclipse (as well as a tomcat
>plugin) to manage my project. A colleague of mine sent me a war file of
>out working projected, which I imported to my IDE. I start tomcat, which
>seems to load properly, and attempt to run the project on the server- where
>I am faced with the following:
>
>
>>javax.servlet.ServletException: Servlet.init() for servlet
>>
>>
>RequestTranslator threw exception
>
>
>>root cause
>>
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>> java.lang.Class.getDeclaredConstructors0(Native Method)
>> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>> java.lang.Class.getConstructor0(Unknown Source)
>> java.lang.Class.getConstructor(Unknown Source)
>>
>>
>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Confi
g
>uration.java:331)
>
>
>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
>> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>
>>
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:10
5
>)
>
>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.process
C
>onnection(Http11BaseProtocol.java:663)
>
>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.ja
v
>a:527)
>
>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerW
o
>rkerThread.java:80)
>
>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.ja
v
>a:684)
>
>
>> java.lang.Thread.run(Unknown Source)
>>I am using the most recent J2RE 5 and I am certain that Tomcat's
>>
>>
>servlet-api.jar is within my application's class path. I am not sure why
>the source cannot be found. Any helpin locating my problem would be
greatly
>appreciated, and I would be happy to prove more information if needed (I'm
>not entirely sure what would be helpful). And again, I am sorry if this is
>not the place for this kind of question!Happy coding!John
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
>---------------------------------------------------------------------
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>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
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---------------------------------------------------------------------
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For additional commands, e-mail: users-help@tomcat.apache.org
Re: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by David Smith <dn...@cornell.edu>.
I take it you also included j2ee.jar in that search?
--David
Armand Rock wrote:
>Hi,
>I'm getting the same error. I searched my entire computer for any jar/zip
>files containing javax.servlet.ServletContext
>and renamed all of them to ".original" so that they wouldn't be read by the
>JVM. I did this to all the files except for the file
>common/lib/servlet-api.jar
>
>I'm still getting the problem.
>
>I'm using java version 1.4.2_10
>
>The code i'm using used to work under Orion version 1.4.5 (I'm now using
>Tomcat 5.5)
>The code that eventually throws the exception is basically:
>
>ClassFinder classFinder = new ClassFinder();
>classFinder.addFile("/opt/classes/com/canlink/commands/");
>Class usrClass = classFinder.findClass("com.canlink.commands.TestClass");
>
>This line is what throws the exception:
> Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
>{Boolean.class});
>
>The stack trace is:
>SEVERE: Servlet.service() for servlet RunCmd threw exception
>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> at java.lang.Class.getDeclaredMethods0(Native Method)
> at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
> at java.lang.Class.getMethod0(Unknown Source)
> at java.lang.Class.getMethod0(Unknown Source)
> at java.lang.Class.getMethod(Unknown Source)
> at com.canlink.commands.RunCmd.service(RunCmd.java:240)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>FilterChain.java:252)
> at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>ain.java:173)
> at
>org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
>java:672)
> at
>org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDis
>patcher.java:463)
> at
>org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatch
>er.java:398)
> at
>org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher
>.java:301)
> at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
> at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
>22)
> at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
>FilterChain.java:252)
> at
>org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
>ain.java:173)
> at
>org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
>va:213)
> at
>org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
>va:178)
> at
>org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
>)
> at
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
>)
> at
>org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
>:107)
> at
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
> at
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
> at
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
>onnection(Http11BaseProtocol.java:663)
> at
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
>a:527)
> at
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
>rkerThread.java:80)
> at
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
>a:684)
> at java.lang.Thread.run(Unknown Source)
>
>-----Original Message-----
>From: Tim Funk [mailto:funkman@joedog.org]
>Sent: December 6, 2005 6:30 AM
>To: Tomcat Users List
>Subject: Re: Question concerning java.lang.NoClassDefFoundError:
>javax/servlet/ServletContext
>
>
>See - http://tomcat.apache.org/faq/classnotfound.html
>
>Odds are you have your own servlet-api.jar somewhere in the webapp or system
>classpath and that is conflicting with the one in common/lib (installed by
>tomcat)
>
>-Tim
>
>John Poley wrote:
>
>
>>Please forgive my intrusion if this is not the proper place to post a
>>
>>
>questoon of this sort. I am new to servlets, and am working on my first
>deployment- but I am running in to a problem that I can't find a solution
>to. I have installed Tomcat 5.5 and am using Eclipse (as well as a tomcat
>plugin) to manage my project. A colleague of mine sent me a war file of
>out working projected, which I imported to my IDE. I start tomcat, which
>seems to load properly, and attempt to run the project on the server- where
>I am faced with the following:
>
>
>>javax.servlet.ServletException: Servlet.init() for servlet
>>
>>
>RequestTranslator threw exception
>
>
>>root cause
>>
>>java.lang.NoClassDefFoundError: javax/servlet/ServletContext
>> java.lang.Class.getDeclaredConstructors0(Native Method)
>> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
>> java.lang.Class.getConstructor0(Unknown Source)
>> java.lang.Class.getConstructor(Unknown Source)
>>
>>
>>
>freemarker.template.Configuration.setServletContextForTemplateLoading(Config
>uration.java:331)
>
>
>verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
>
>
>> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>>
>>
>>
>org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
>)
>
>
>org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
>
>org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
>
>org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
>onnection(Http11BaseProtocol.java:663)
>
>
>org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
>a:527)
>
>
>org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
>rkerThread.java:80)
>
>
>org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
>a:684)
>
>
>> java.lang.Thread.run(Unknown Source)
>>I am using the most recent J2RE 5 and I am certain that Tomcat's
>>
>>
>servlet-api.jar is within my application's class path. I am not sure why
>the source cannot be found. Any helpin locating my problem would be greatly
>appreciated, and I would be happy to prove more information if needed (I'm
>not entirely sure what would be helpful). And again, I am sorry if this is
>not the place for this kind of question!Happy coding!John
>
>
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
>
>---------------------------------------------------------------------
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>For additional commands, e-mail: users-help@tomcat.apache.org
>
>
>
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RE: Question concerning java.lang.NoClassDefFoundError: javax/servlet/ServletContext
Posted by Armand Rock <ro...@gilmore.ca>.
Hi,
I'm getting the same error. I searched my entire computer for any jar/zip
files containing javax.servlet.ServletContext
and renamed all of them to ".original" so that they wouldn't be read by the
JVM. I did this to all the files except for the file
common/lib/servlet-api.jar
I'm still getting the problem.
I'm using java version 1.4.2_10
The code i'm using used to work under Orion version 1.4.5 (I'm now using
Tomcat 5.5)
The code that eventually throws the exception is basically:
ClassFinder classFinder = new ClassFinder();
classFinder.addFile("/opt/classes/com/canlink/commands/");
Class usrClass = classFinder.findClass("com.canlink.commands.TestClass");
This line is what throws the exception:
Method setCmdLog = usrClass.getMethod("setCmdLog", new Class[]
{Boolean.class});
The stack trace is:
SEVERE: Servlet.service() for servlet RunCmd threw exception
java.lang.NoClassDefFoundError: javax/servlet/ServletContext
at java.lang.Class.getDeclaredMethods0(Native Method)
at java.lang.Class.privateGetDeclaredMethods(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod0(Unknown Source)
at java.lang.Class.getMethod(Unknown Source)
at com.canlink.commands.RunCmd.service(RunCmd.java:240)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:173)
at
org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.
java:672)
at
org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDis
patcher.java:463)
at
org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatch
er.java:398)
at
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher
.java:301)
at org.apache.jsp.web.Login_jsp._jspService(Login_jsp.java:67)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:3
22)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:252)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:173)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:213)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:178)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126
)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:107)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
onnection(Http11BaseProtocol.java:663)
at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:527)
at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
at java.lang.Thread.run(Unknown Source)
-----Original Message-----
From: Tim Funk [mailto:funkman@joedog.org]
Sent: December 6, 2005 6:30 AM
To: Tomcat Users List
Subject: Re: Question concerning java.lang.NoClassDefFoundError:
javax/servlet/ServletContext
See - http://tomcat.apache.org/faq/classnotfound.html
Odds are you have your own servlet-api.jar somewhere in the webapp or system
classpath and that is conflicting with the one in common/lib (installed by
tomcat)
-Tim
John Poley wrote:
> Please forgive my intrusion if this is not the proper place to post a
questoon of this sort. I am new to servlets, and am working on my first
deployment- but I am running in to a problem that I can't find a solution
to. I have installed Tomcat 5.5 and am using Eclipse (as well as a tomcat
plugin) to manage my project. A colleague of mine sent me a war file of
out working projected, which I imported to my IDE. I start tomcat, which
seems to load properly, and attempt to run the project on the server- where
I am faced with the following:
>
>
> javax.servlet.ServletException: Servlet.init() for servlet
RequestTranslator threw exception
>
> root cause
>
> java.lang.NoClassDefFoundError: javax/servlet/ServletContext
> java.lang.Class.getDeclaredConstructors0(Native Method)
> java.lang.Class.privateGetDeclaredConstructors(Unknown Source)
> java.lang.Class.getConstructor0(Unknown Source)
> java.lang.Class.getConstructor(Unknown Source)
>
freemarker.template.Configuration.setServletContextForTemplateLoading(Config
uration.java:331)
>
verkoopen.boundary.UserInterfaceOutput.<init>(UserInterfaceOutput.java:31)
> verkoopen.boundary.RequestTranslator.init(RequestTranslator.java:25)
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105
)
>
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
>
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:868)
>
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processC
onnection(Http11BaseProtocol.java:663)
>
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.jav
a:527)
>
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWo
rkerThread.java:80)
>
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:684)
> java.lang.Thread.run(Unknown Source)
> I am using the most recent J2RE 5 and I am certain that Tomcat's
servlet-api.jar is within my application's class path. I am not sure why
the source cannot be found. Any helpin locating my problem would be greatly
appreciated, and I would be happy to prove more information if needed (I'm
not entirely sure what would be helpful). And again, I am sorry if this is
not the place for this kind of question!Happy coding!John
>
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