Hi everybody. I finally figured a way out to debug my web application. I start Tomcat standalone, but changed the start command to
C:\j2sdk1.4.1_01\bin\java.exe -Xdebug -Xrunjdwp:transport=dt_socket,server=y,address=8000 -jar -Duser.dir="C:\Tomcat4.1" "c:\Tomcat4.1\bin\bootstrap.jar" start That enables the remote dubgging feature of the JSDK. Then I attach my Eclipse debugger using the "Remote Java Application"-Debugger-Option in Eclipse. For now it seems to work! Thanks everybody for the help!! Oliver Adolph -----Ursprüngliche Nachricht----- Von: Howard Miller [mailto:[EMAIL PROTECTED]] Gesendet: Dienstag, 24. Dezember 2002 10:41 An: Struts Users Mailing List Betreff: Re: AW: Problems with Eclipse and Struts Well..... Maybe I'm just getting old, but I tend to add additional debug code into my applications and use a lot of log statements. I am in the position that I sometimes (well often) have to debug client's applications over a Telnet connection, so I can't rely on the abilities of an IDE. I have got used to working in this way, although I accept that it probably isn't very efficient. You may not have these "restrictions" of course. HM On 24 Dec 2002 at 10:33, Oliver Adolph wrote: > Hi Howard, > > But how do you debug your application ? > > Oliver Adolph > > -----Ursprüngliche Nachricht----- > Von: Howard Miller [mailto:[EMAIL PROTECTED]] > Gesendet: Dienstag, 24. Dezember 2002 10:30 > An: Struts Users Mailing List > Betreff: Re: Problems with Eclipse and Struts > > > Hi, > > I use much the same set up as you and had lots of problems with those > plugins. Personally I don't use them, I find it *much* easier just to > keep a terminal/dos window > open and use Ant to build and test the application. The Ant build script > that is > described in the Tomcat documentation (although it has a couple of > mistakes!), gets > the job done. > > I take the attitude that I always want to be able to modify and build > my applications from the command line if I'm stuck and can't use the > IDE. > > HM > > On 24 Dec 2002 at 10:10, Oliver Adolph wrote: > > > Hi, > > > > I hope anybody can help me with this issue. > > I have a web application, which runs under Tomcat 4.1.18. It uses > > Struts 1.1B2. I also use Eclipse 2.0.2 with the Lomboz and the > > Sysdeo plugins. > > > > Now I run into the following problem: > > When I try to start Tomcat through one of the plugins to debug the > > application I always get the following error > > > > 24.12.2002 09:57:38 org.apache.commons.digester.Digester > > startElement > > SCHWERWIEGEND: Begin event threw exception > > java.lang.ClassNotFoundException: org.apache.catalina.core.StandardServer > > at java.net.URLClassLoader$1.run(URLClassLoader.java:198) > > at java.security.AccessController.doPrivileged(Native Method) > > at java.net.URLClassLoader.findClass(URLClassLoader.java:186) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:299) > > at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:265) > > at java.lang.ClassLoader.loadClass(ClassLoader.java:255) > > at > > org.apache.commons.digester.ObjectCreateRule.begin(ObjectCreateRule.ja > > va:252 > > ) > > at > > org.apache.commons.digester.Digester.startElement(Digester.java:1237) > > at > > > org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXPa > rser.j > > ava:459) > > at > > > org.apache.xerces.impl.XMLNamespaceBinder.startElement(XMLNamespaceBin > der.ja > > va:572) > > at > > > org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidato > r.java > > :727) > > at > > > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement > (XMLDo > > cumentFragmentScannerImpl.java:759) > > at > > > org.apache.xerces.impl.XMLDocumentScannerImpl$ContentDispatcher.scanRo > otElem > > entHook(XMLDocumentScannerImpl.java:957) > > at > > > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentD > ispatc > > her.dispatch(XMLDocumentFragmentScannerImpl.java:1544) > > at > > > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XML > Docume > > ntFragmentScannerImpl.java:329) > > at > > > org.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java > :525) > > at > > > org.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java > :581) > > at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:152) > > at > > > org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.ja > va:117 > > 5) > > at org.apache.commons.digester.Digester.parse(Digester.java:1495) > > at org.apache.catalina.startup.Catalina.start(Catalina.java:449) > > at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) > > at org.apache.catalina.startup.Catalina.process(Catalina.java:180) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.j > ava:39 > > ) > > at > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess > orImpl > > .java:25) > > at java.lang.reflect.Method.invoke(Method.java:324) > > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203) > > Catalina.start: java.lang.ClassNotFoundException: > > org.apache.catalina.core.StandardServer > > java.lang.ClassNotFoundException: org.apache.catalina.core.StandardServer > > at > > > org.apache.commons.digester.Digester.createSAXException(Digester.java: > 2312) > > at > > > org.apache.commons.digester.Digester.createSAXException(Digester.java: > 2332) > > at > > org.apache.commons.digester.Digester.startElement(Digester.java:1240) > > at > > > org.apache.xerces.parsers.AbstractSAXParser.startElement(AbstractSAXPa > rser.j > > ava:459) > > at > > > org.apache.xerces.impl.XMLNamespaceBinder.startElement(XMLNamespaceBin > der.ja > > va:572) > > at > > > org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidato > r.java > > :727) > > at > > > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement > (XMLDo > > cumentFragmentScannerImpl.java:759) > > at > > > org.apache.xerces.impl.XMLDocumentScannerImpl$ContentDispatcher.scanRo > otElem > > entHook(XMLDocumentScannerImpl.java:957) > > at > > > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentD > ispatc > > her.dispatch(XMLDocumentFragmentScannerImpl.java:1544) > > at > > > org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(XML > Docume > > ntFragmentScannerImpl.java:329) > > at > > > org.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java > :525) > > at > > > org.apache.xerces.parsers.DTDConfiguration.parse(DTDConfiguration.java > :581) > > at org.apache.xerces.parsers.XMLParser.parse(XMLParser.java:152) > > at > > > org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.ja > va:117 > > 5) > > at org.apache.commons.digester.Digester.parse(Digester.java:1495) > > at org.apache.catalina.startup.Catalina.start(Catalina.java:449) > > at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) > > at org.apache.catalina.startup.Catalina.process(Catalina.java:180) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.j > ava:39 > > ) > > at > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess > orImpl > > .java:25) > > at java.lang.reflect.Method.invoke(Method.java:324) > > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203) > > > > > > > > > > > > > > > > > > I finally found out that this problem is related to the > > commons-digester.jar. When I remove this jar from my project Tomcat > > starts. But then struts is not able to load it's config file: > > > > > > 2002-12-24 10:07:15 StandardWrapper[/intercard:action]: Marking > > servlet action as unavailable 2002-12-24 10:07:15 > > StandardContext[/intercard]: Servlet /intercard threw > > load() exception > > javax.servlet.ServletException: Error instantiating servlet class > > org.apache.struts.action.ActionServlet > > at > > org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.j > > ava:91 > > 1) > > at > > org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:821) > > at > > > org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext > .java: > > 3420) > > at > > org.apache.catalina.core.StandardContext.start(StandardContext.java:3608) > > at > > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188) > > at > > org.apache.catalina.core.StandardHost.start(StandardHost.java:738) > > at > > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188) > > at > > org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347) > > at > > org.apache.catalina.core.StandardService.start(StandardService.java:497) > > at > > org.apache.catalina.core.StandardServer.start(StandardServer.java:2189) > > at org.apache.catalina.startup.Catalina.start(Catalina.java:512) > > at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) > > at org.apache.catalina.startup.Catalina.process(Catalina.java:180) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.j > ava:39 > > ) > > at > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess > orImpl > > .java:25) > > at java.lang.reflect.Method.invoke(Method.java:324) > > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203) > > ----- Root Cause ----- > > java.lang.NoClassDefFoundError: org/apache/commons/digester/RuleSet > > at java.lang.Class.getDeclaredConstructors0(Native Method) > > at java.lang.Class.privateGetDeclaredConstructors(Class.java:1590) > > at java.lang.Class.getConstructor0(Class.java:1762) > > at java.lang.Class.newInstance0(Class.java:276) > > at java.lang.Class.newInstance(Class.java:259) > > at > > > org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.j > ava:90 > > 2) > > at > > org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:821) > > at > > > org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext > .java: > > 3420) > > at > > org.apache.catalina.core.StandardContext.start(StandardContext.java:3608) > > at > > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188) > > at > > org.apache.catalina.core.StandardHost.start(StandardHost.java:738) > > at > > org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1188) > > at > > org.apache.catalina.core.StandardEngine.start(StandardEngine.java:347) > > at > > org.apache.catalina.core.StandardService.start(StandardService.java:497) > > at > > org.apache.catalina.core.StandardServer.start(StandardServer.java:2189) > > at org.apache.catalina.startup.Catalina.start(Catalina.java:512) > > at org.apache.catalina.startup.Catalina.execute(Catalina.java:400) > > at org.apache.catalina.startup.Catalina.process(Catalina.java:180) > > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > > at > > > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.j > ava:39 > > ) > > at > > > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccess > orImpl > > .java:25) > > at java.lang.reflect.Method.invoke(Method.java:324) > > at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:203) > > > > > > > > > > > > > > > > When I start Tomcat not through the plugins as a standalone > > application everything works fine. To me it looks like a problem of > > the ClassLoader because the digester is also part of Tomcat, but I'm > > not shure. > > > > By the way with Struts 1.0 it worked without any problem. > > > > > > Oliver Adolph > > > > -- > > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: > > <mailto:[EMAIL PROTECTED]> > > > > > > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > -- > To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > > -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
