RE: newbie - finding class files
What's wrong with putting them in CATALINA_HOME/common/lib? -Original Message- From: P.van Kemenade [mailto:[EMAIL PROTECTED] Sent: 26 August 2003 16:49 To: Tomcat List Subject: RE: newbie - finding class files Hi I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can *not* see the Catalina class loader. thanks, *-pike --- Editorship Styling 'Techniek is waistline, Publish the plan!' What make the method strong until for instance one newspaperman who wish publish and not with technique wish turn troublesome fallen? The clientèle with all the bye bye the handshake with examples decrepit. The motto: 'Techniek is waistline, publish the plan!' http://www.worldlanguage.com/Translation.htm == The key words MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL in this document are to be interpreted as described in [RFC2119] I wasted time, and now doth time waste me. Or now hath time made me his numbring clock: My thoughts are minutes; and, with sighs, they jar Their watches on to mine eyes, the outward watch, Whereto my finger, like a dials point, Is pointing still, in cleansing them from tears. http://framework.v2.nl/archive/archive/node/text/default.py/nodenr-67731 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: newbie - finding class files
Hi thanks for your response (sorry about the repeated post - my mistake) What's wrong with putting them in CATALINA_HOME/common/lib? well, nothing. it just sounds very ugly, having the same jar files running twice in one tomcat, once in server/lib and once in common/lib. is this how its _normally_ done ? another point is, tomcat starts complaining about 'bundles' then, but this may be solvable... I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can*not* see the Catalina class loader. thanks, *-pike == Signature #1 == - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: newbie - finding class files
Well actually if you have them in 2 places it can cause terminal errors, and at the very least will waste time and memory on startup. Common/lib is not an ideal solution, but you might want to try it at least to see if it works. In any case, if you install things like Slide (a Jakarta DMS/CMS webDAV-based framework), all the webDAV Servlets (and indeed everything else) goes in common/lib. Alternatively, have you try putting it inside the /lib directory of your webapp? It will then only be accessible to that webapp tho. -Original Message- From: Pike [mailto:[EMAIL PROTECTED] Sent: 27 August 2003 00:25 To: Tomcat Users List Subject: Re: newbie - finding class files Hi thanks for your response (sorry about the repeated post - my mistake) What's wrong with putting them in CATALINA_HOME/common/lib? well, nothing. it just sounds very ugly, having the same jar files running twice in one tomcat, once in server/lib and once in common/lib. is this how its _normally_ done ? another point is, tomcat starts complaining about 'bundles' then, but this may be solvable... I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can*not* see the Catalina class loader. thanks, *-pike == Signature #1 == - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: newbie - finding class files
Hi I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can *not* see the Catalina class loader. thanks, *-pike I wasted time, and now doth time waste me. Or now hath time made me his numbring clock: My thoughts are minutes; and, with sighs, they jar Their watches on to mine eyes, the outward watch, Whereto my finger, like a dials point, Is pointing still, in cleansing them from tears. http://framework.v2.nl/archive/archive/node/text/default.py/nodenr-67731 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: newbie - finding class files
Hi I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can *not* see the Catalina class loader. thanks, *-pike --- Editorship Styling 'Techniek is waistline, Publish the plan!' What make the method strong until for instance one newspaperman who wish publish and not with technique wish turn troublesome fallen? The clientèle with all the bye bye the handshake with examples decrepit. The motto: 'Techniek is waistline, publish the plan!' http://www.worldlanguage.com/Translation.htm - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: newbie - finding class files
Hi I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can *not* see the Catalina class loader. thanks, *-pike --- Editorship Styling 'Techniek is waistline, Publish the plan!' What make the method strong until for instance one newspaperman who wish publish and not with technique wish turn troublesome fallen? The clientle with all the bye bye the handshake with examples decrepit. The motto: 'Techniek is waistline, publish the plan!' http://www.worldlanguage.com/Translation.htm? == The key words MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL in this document are to be interpreted as described in [RFC2119] I wasted time, and now doth time waste me. Or now hath time made me his numbring clock: My thoughts are minutes; and, with sighs, they jar Their watches on to mine eyes, the outward watch, Whereto my finger, like a dials point, Is pointing still, in cleansing them from tears. http://framework.v2.nl/archive/archive/node/text/default.py/nodenr-67731 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: newbie - finding class files
Hi I found this old thread about extending WebdavServlet, in which Andreas Probst notes his webapp cant load classes from the $CATALINA_HOME/servlet/lib/ dir. this url http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html makes it clear why. but now: how should I extend WebdavServlet inside my webapp ? If i put my own classes in the org.apache.bla package, it can't load the classes from my webapp, ofcourse. should I copy all jar files from $CATALINA_HOME/servlet/lib/*jar to my webapps /WEB-INF/lib ? that should work, but it sounds ugly. On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader- howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can *not* see the Catalina class loader. thanks, *-pike --- Editorship Styling 'Techniek is waistline, Publish the plan!' What make the method strong until for instance one newspaperman who wish publish and not with technique wish turn troublesome fallen? The clientèle with all the bye bye the handshake with examples decrepit. The motto: 'Techniek is waistline, publish the plan!' http://www.worldlanguage.com/Translation.htm == The key words MUST, MUST NOT, REQUIRED, SHALL, SHALL NOT SHOULD, SHOULD NOT, RECOMMENDED, MAY, and OPTIONAL in this document are to be interpreted as described in [RFC2119] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: newbie - finding class files
On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Bye. Andreas On the one hand the original webapp /webdav runs without errors. On the other hand, when I deploy a class that extends the original webdav-class org.apache.catalina.servlets.WebdavServlet (located in catalinahome\server\lib\servlets-webdav.jar) I get an java.lang.NoClassDefFoundError: org/apache/catalina/servlets/WebdavServlet. When I then copy catalinahome\server\lib\servlets-webdav.jar into catalinahome\webapps\mywebdav\WEB-INF\lib I get a different java.lang.NoClassDefFoundError: org/apache/catalina/servlets/DefaultServlet. DefaultServlet is located in catalinahome\server\lib\servlets-default.jar. So it seems Tomcat doesn't look into the catalinahome\server\lib\ directory. But why then runs the original /webdav app? What do I do wrong? Do I have to tell Tomcat somehow to look into the catalinahome\server\lib\ directory when running my webapp? Or do I have to copy all needed files from catalinahome\server\lib\ to my webapp's lib-directory? I suppose this shouldn't be the solution. By the way: I'm running Tomcat 4.0.4 on Windows 2000. Thanks a lot in advance. Andreas -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: newbie - finding class files
On Tue, 16 Jul 2002, Andreas Probst wrote: Date: Tue, 16 Jul 2002 13:59:49 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files On Mon, 15 Jul 2002, Andreas Probst wrote: Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig Thank you Craig. Could you please tell more about the rule or give a pointer. The class-loader-info of the Tomcat-Docu says nothing about the rule, but says, that These classes and resources are TOTALLY invisible to web applications. Actually, the rule is very simple, and it is there in the docs. Look at the picture of the class loader hierarchy in the Tomcat docs: http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html The classes that are visible to a web application are those in the class loader for that webapp, and any of it's parent class loaders. In other words, an application can see the WebappX class loader for itself, plus the Shared, Common, System, and Bootstrap class loaders. It can *not* see the Catalina class loader. Now, go down the page a few inches, and you'll see that the Catalina class loader contains everything in server/classes and server/lib (including servlets-webdav.jar that contains the WebDAV servlet). Bye. Andreas Craig On the one hand the original webapp /webdav runs without errors. On the other hand, when I deploy a class that extends the original webdav-class org.apache.catalina.servlets.WebdavServlet (located in catalinahome\server\lib\servlets-webdav.jar) I get an java.lang.NoClassDefFoundError: org/apache/catalina/servlets/WebdavServlet. When I then copy catalinahome\server\lib\servlets-webdav.jar into catalinahome\webapps\mywebdav\WEB-INF\lib I get a different java.lang.NoClassDefFoundError: org/apache/catalina/servlets/DefaultServlet. DefaultServlet is located in catalinahome\server\lib\servlets-default.jar. So it seems Tomcat doesn't look into the catalinahome\server\lib\ directory. But why then runs the original /webdav app? What do I do wrong? Do I have to tell Tomcat somehow to look into the catalinahome\server\lib\ directory when running my webapp? Or do I have to copy all needed files from catalinahome\server\lib\ to my webapp's lib-directory? I suppose this shouldn't be the solution. By the way: I'm running Tomcat 4.0.4 on Windows 2000. Thanks a lot in advance. Andreas -- 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]
RE: newbie - finding class files
Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. On the one hand the original webapp /webdav runs without errors. On the other hand, when I deploy a class that extends the original webdav-class org.apache.catalina.servlets.WebdavServlet (located in catalinahome\server\lib\servlets-webdav.jar) I get an java.lang.NoClassDefFoundError: org/apache/catalina/servlets/WebdavServlet. When I then copy catalinahome\server\lib\servlets-webdav.jar into catalinahome\webapps\mywebdav\WEB-INF\lib I get a different java.lang.NoClassDefFoundError: org/apache/catalina/servlets/DefaultServlet. DefaultServlet is located in catalinahome\server\lib\servlets-default.jar. So it seems Tomcat doesn't look into the catalinahome\server\lib\ directory. But why then runs the original /webdav app? What do I do wrong? Do I have to tell Tomcat somehow to look into the catalinahome\server\lib\ directory when running my webapp? Or do I have to copy all needed files from catalinahome\server\lib\ to my webapp's lib-directory? I suppose this shouldn't be the solution. By the way: I'm running Tomcat 4.0.4 on Windows 2000. Thanks a lot in advance. Andreas Probst Brian, Tomcat looks for your classes under Tomcatdir/webapps/yourapp/WEB-INF/classes and Tomcatdir/common/classes and looks for your jars in Tomcatdir/webapps/yourapp/WEB-INF/lib , Tomcatdir/common/lib (and Tomcatdir/server/lib but you shouldn't put your stuff in here) Andy -Original Message- From: Brian Wolf [mailto:[EMAIL PROTECTED]] Sent: 11 July 2002 22:12 To: Tomcat Users List Subject: newbie - finding class files Hi I am having problems with servlets finding class files. On Windows 98 I have the classpath and path environmental variables set to c:\jdk1.4\bin and c:\jdk1.4 respectively. The Servlet works fine when converted to a command line application. -Brian --- Error: 500 Location: /examples/servlet/processOptions Internal Servlet Error: java.lang.NoClassDefFoundError: com/sun/java/util/collections/AbstractSequentialList at org.jdom.input.SAXBuilder.createContentHandler(SAXBuilder.java) at org.jdom.input.SAXBuilder.build(SAXBuilder.java) -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: newbie - finding class files
Check this link for more info on class loading. http://jakarta.apache.org/tomcat/tomcat-4.0-doc/class-loader-howto.html But it was my understanding that only Tomcat loads the classes and jars located in the /server directory. If you need access to it in your webapp, you have to either put the jar in yourwebapp/WEB-INF/lib or in the shared library section. For 4.0.4, shared libraries go in %CATALINA%\lib. With 4.1.x, they go in %CATALINA%\shared\lib. - Andrew -Original Message- From: Andreas Probst [mailto:[EMAIL PROTECTED]] Sent: Monday, July 15, 2002 7:07 AM To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. On the one hand the original webapp /webdav runs without errors. On the other hand, when I deploy a class that extends the original webdav-class org.apache.catalina.servlets.WebdavServlet (located in catalinahome\server\lib\servlets-webdav.jar) I get an java.lang.NoClassDefFoundError: org/apache/catalina/servlets/WebdavServlet. When I then copy catalinahome\server\lib\servlets-webdav.jar into catalinahome\webapps\mywebdav\WEB-INF\lib I get a different java.lang.NoClassDefFoundError: org/apache/catalina/servlets/DefaultServlet. DefaultServlet is located in catalinahome\server\lib\servlets-default.jar. So it seems Tomcat doesn't look into the catalinahome\server\lib\ directory. But why then runs the original /webdav app? What do I do wrong? Do I have to tell Tomcat somehow to look into the catalinahome\server\lib\ directory when running my webapp? Or do I have to copy all needed files from catalinahome\server\lib\ to my webapp's lib-directory? I suppose this shouldn't be the solution. By the way: I'm running Tomcat 4.0.4 on Windows 2000. Thanks a lot in advance. Andreas Probst Brian, Tomcat looks for your classes under Tomcatdir/webapps/yourapp/WEB-INF/classes and Tomcatdir/common/classes and looks for your jars in Tomcatdir/webapps/yourapp/WEB-INF/lib , Tomcatdir/common/lib (and Tomcatdir/server/lib but you shouldn't put your stuff in here) Andy -Original Message- From: Brian Wolf [mailto:[EMAIL PROTECTED]] Sent: 11 July 2002 22:12 To: Tomcat Users List Subject: newbie - finding class files Hi I am having problems with servlets finding class files. On Windows 98 I have the classpath and path environmental variables set to c:\jdk1.4\bin and c:\jdk1.4 respectively. The Servlet works fine when converted to a command line application. -Brian --- Error: 500 Location: /examples/servlet/processOptions Internal Servlet Error: java.lang.NoClassDefFoundError: com/sun/java/util/collections/AbstractSequentialList at org.jdom.input.SAXBuilder.createContentHandler(SAXBuilder.java) at org.jdom.input.SAXBuilder.build(SAXBuilder.java) -- To unsubscribe, e-mail: mailto:tomcat-user- [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]
RE: newbie - finding class files
On Mon, 15 Jul 2002, Andreas Probst wrote: Date: Mon, 15 Jul 2002 13:07:11 +0200 From: Andreas Probst [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: RE: newbie - finding class files Hi all, does Tomcat really look into tomcatdir/server/lib? For me it seems Tomcat doesn't. This directory is only visible to the classloader for Tomcat itself, not for webapps. There is a special rule that makes servlet classes in package org.apache.catalina available to webapps anyway, however, which is why the standard WebdavServlet (as well as the other Tomcat features that are available via servlets) can be loaded. Craig On the one hand the original webapp /webdav runs without errors. On the other hand, when I deploy a class that extends the original webdav-class org.apache.catalina.servlets.WebdavServlet (located in catalinahome\server\lib\servlets-webdav.jar) I get an java.lang.NoClassDefFoundError: org/apache/catalina/servlets/WebdavServlet. When I then copy catalinahome\server\lib\servlets-webdav.jar into catalinahome\webapps\mywebdav\WEB-INF\lib I get a different java.lang.NoClassDefFoundError: org/apache/catalina/servlets/DefaultServlet. DefaultServlet is located in catalinahome\server\lib\servlets-default.jar. So it seems Tomcat doesn't look into the catalinahome\server\lib\ directory. But why then runs the original /webdav app? What do I do wrong? Do I have to tell Tomcat somehow to look into the catalinahome\server\lib\ directory when running my webapp? Or do I have to copy all needed files from catalinahome\server\lib\ to my webapp's lib-directory? I suppose this shouldn't be the solution. By the way: I'm running Tomcat 4.0.4 on Windows 2000. Thanks a lot in advance. Andreas Probst Brian, Tomcat looks for your classes under Tomcatdir/webapps/yourapp/WEB-INF/classes and Tomcatdir/common/classes and looks for your jars in Tomcatdir/webapps/yourapp/WEB-INF/lib , Tomcatdir/common/lib (and Tomcatdir/server/lib but you shouldn't put your stuff in here) Andy -Original Message- From: Brian Wolf [mailto:[EMAIL PROTECTED]] Sent: 11 July 2002 22:12 To: Tomcat Users List Subject: newbie - finding class files Hi I am having problems with servlets finding class files. On Windows 98 I have the classpath and path environmental variables set to c:\jdk1.4\bin and c:\jdk1.4 respectively. The Servlet works fine when converted to a command line application. -Brian --- Error: 500 Location: /examples/servlet/processOptions Internal Servlet Error: java.lang.NoClassDefFoundError: com/sun/java/util/collections/AbstractSequentialList at org.jdom.input.SAXBuilder.createContentHandler(SAXBuilder.java) at org.jdom.input.SAXBuilder.build(SAXBuilder.java) -- 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]
newbie - finding class files
Hi I am having problems with servlets finding class files. On Windows 98 I have the classpath and path environmental variables set to c:\jdk1.4\bin and c:\jdk1.4 respectively. The Servlet works fine when converted to a command line application. -Brian --- Error: 500 Location: /examples/servlet/processOptions Internal Servlet Error: java.lang.NoClassDefFoundError: com/sun/java/util/collections/AbstractSequentialList at org.jdom.input.SAXBuilder.createContentHandler(SAXBuilder.java) at org.jdom.input.SAXBuilder.build(SAXBuilder.java)
RE: newbie - finding class files
Brian, Tomcat looks for your classes under Tomcatdir/webapps/yourapp/WEB-INF/classes and Tomcatdir/common/classes and looks for your jars in Tomcatdir/webapps/yourapp/WEB-INF/lib , Tomcatdir/common/lib (and Tomcatdir/server/lib but you shouldn't put your stuff in here) Andy -Original Message- From: Brian Wolf [mailto:[EMAIL PROTECTED]] Sent: 11 July 2002 22:12 To: Tomcat Users List Subject: newbie - finding class files Hi I am having problems with servlets finding class files. On Windows 98 I have the classpath and path environmental variables set to c:\jdk1.4\bin and c:\jdk1.4 respectively. The Servlet works fine when converted to a command line application. -Brian --- Error: 500 Location: /examples/servlet/processOptions Internal Servlet Error: java.lang.NoClassDefFoundError: com/sun/java/util/collections/AbstractSequentialList at org.jdom.input.SAXBuilder.createContentHandler(SAXBuilder.java) at org.jdom.input.SAXBuilder.build(SAXBuilder.java) -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
