RE: java.lang.NoClassDefFoundError -- solved
This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml. It didn't work!? Sounds simple, but we see a number of common mistakes: - Most people simply forget to uncomment it. Check and double check that. - Some set it to OPENEJB_HOME, which won't work. An actual path is required. - Some set it to point to the OpenEJB /bin directory. - The rest are usually typos in the path. Hope this helps everyone out. As an archive-searcher, I always appreciate finding emails like this. If anyone has any ideas on making the integration process even easier, I am all ears. -David -Original Message- From: Jon Wingfield [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:44 PM To: Tomcat Users List Subject: Re: java.lang.NoClassDefFoundError Looks like you've using OpenEJB ;) The OpenEJB distro comes with a war file, which looks like it's been expanded to a context by your tomcat install. However, the war file doesn't contain the required OpenEJB jar files (which probably need to be put in common/lib or server/lib). The class file for org/openejb/OpenEJB is in the openejb-0.9.1.jar. Deploy that and you should be set (well, this error will go away, at least) . HTH, Jon Jeremy Whitlock wrote: Tomcat List, This might not be a Tomcat problem but I imagine that you might be able to help anyways. Every time I start Tomcat, I get this error: StandardContext[/openejb_loader-0.9.1]: Servlet /openejb_loader-0.9.1 threw load() exception javax.servlet.ServletException: Servlet.init() for servlet loader threw exception at org.apache.catalina.core.StandardWrapper.loadServlet(Standard Wrapper.ja v a:962) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper .java:821) at org.apache.catalina.core.StandardContext.loadOnStartup(Standa rdContext. j ava:3420) at org.apache.catalina.core.StandardContext.start(StandardContex t.java:360 8 ) at org.apache.catalina.core.ContainerBase.addChildInternal(Conta inerBase.j a va:821) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase .java:807) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:579) at org.apache.catalina.core.StandardHostDeployer.install(Standar dHostDeplo y er.java:257) at org.apache.catalina.core.StandardHost.install(StandardHost.java:772) at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig. java:502) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig. java:410) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:879) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostCon fig.java:3 6 8) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent( LifecycleS u pport.java:166) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1196) 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(StandardServic e.java:497 ) at org.apache.catalina.core.StandardServer.start(StandardServer. java:2189) at org.apache.catalina.startup.Catalina.start(Catalina.java:512)
RE: java.lang.NoClassDefFoundError -- solved
Filip, I didn't register my servlet in web.xml because I didn't know I had to. I have this same setup on my Windows 2000 machine and I didn't have a web.xml file for that EJB. Also, your first statement, can you give me an example of how you do that? Thanks, Jeremy -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:33 PM To: Tomcat Users List Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml. It didn't work!? Sounds simple, but we see a number of common mistakes: - Most people simply forget to uncomment it. Check and double check that. - Some set it to OPENEJB_HOME, which won't work. An actual path is required. - Some set it to point to the OpenEJB /bin directory. - The rest are usually typos in the path. Hope this helps everyone out. As an archive-searcher, I always appreciate finding emails like this. If anyone has any ideas on making the integration process even easier, I am all ears. -David -Original Message- From: Jon Wingfield [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:44 PM To: Tomcat Users List Subject: Re: java.lang.NoClassDefFoundError Looks like you've using OpenEJB ;) The OpenEJB distro comes with a war file, which looks like it's been expanded to a context by your tomcat install. However, the war file doesn't contain the required OpenEJB jar files (which probably need to be put in common/lib or server/lib
RE: java.lang.NoClassDefFoundError -- solved
1. If you have the invoker servlet, you can access it that way, but you need the full classname look in the docs for the invoker servlet, it is a shortcut in Tomcat so you don't have to register your servlets in web.xml. Or search the archives for the invoker servlet. http://localhost:8080/openejb/servlet/org/acme/HelloOpenEJB and it also means that HelloOpenEJB has to have the package org.acme; statement in it. 2. Be default you have to register the servlets in web.xml to map them to a request. Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:36 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved Filip, I didn't register my servlet in web.xml because I didn't know I had to. I have this same setup on my Windows 2000 machine and I didn't have a web.xml file for that EJB. Also, your first statement, can you give me an example of how you do that? Thanks, Jeremy -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:33 PM To: Tomcat Users List Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml. It didn't work!? Sounds simple, but we see a number of common mistakes: - Most people simply forget to uncomment it. Check and double check that. - Some set it to OPENEJB_HOME, which won't work. An actual path is required. - Some set it to point to the OpenEJB /bin directory. - The rest
RE: java.lang.NoClassDefFoundError -- solved
Filip, Which web.xml? There is one in the $CATALINA_HOME/conf directory and I can also put one in the WEB-INF directory of the app. I'm new to OpenEJB. I have configured it many times but with my current schedule, I haven't had time to play with EJBs for awhile. Thanks for your help, Jeremy -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:48 PM To: Tomcat Users List Subject: RE: java.lang.NoClassDefFoundError -- solved 1. If you have the invoker servlet, you can access it that way, but you need the full classname look in the docs for the invoker servlet, it is a shortcut in Tomcat so you don't have to register your servlets in web.xml. Or search the archives for the invoker servlet. http://localhost:8080/openejb/servlet/org/acme/HelloOpenEJB and it also means that HelloOpenEJB has to have the package org.acme; statement in it. 2. Be default you have to register the servlets in web.xml to map them to a request. Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:36 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved Filip, I didn't register my servlet in web.xml because I didn't know I had to. I have this same setup on my Windows 2000 machine and I didn't have a web.xml file for that EJB. Also, your first statement, can you give me an example of how you do that? Thanks, Jeremy -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:33 PM To: Tomcat Users List Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat
RE: java.lang.NoClassDefFoundError -- solved
David, I have deployed the myHelloEjb.jar and it's in the /usr/local/openejb/openejb-0.9.1/bean directory. I haven't copied it or moved it. In my Windows install, I had to do some weird things for my EJB to work with OpenEJB. I had to move the META-INF, org and myHelloEjb.jar files from the classes directory into some other directory. If I didn't do that, it wouldn't work. Now, when I deploy the app: ./openejb.sh deploy -a -m /usr/local/share/development/openejb/WEB-INF/classes/myHelloEjb.jar everything goes as planned and the myHelloEjb.jar gets copied to the /usr/local/openejb/openejb-0.9.1/beans directory What do I do next? The META-INF and org directories are still there, should they be? Here are my steps: 1) Create all .java files for the bean example 2) javac all .java files 3) jar META-INF and org 4) deploy myHelloEjb.jar 5) Start Tomcat Did I leave any steps out? I don't know what to do next. Please help. Thanks, Jeremy P.S. - I tried the http://localhost:8080/openejb/servlet/org/acme/HelloOpenEJB but it didn't work. Anymore ideas? -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:58 PM To: 'Tomcat Users List' Cc: 'OpenEJB Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved Filip is correct, follow that advice. Also, once you deploy the EJB's into OpenEJB, just leave them in the OpenEJB beans directory. Don't copy the contents of you EJB jar into the webapps dir, ejbs are not simple libraries, they must stay in the EJB container. Putting them in the webapps classes dir or lib dir will just cause classloader issues. OpenEJB will make sure all your EJBs are visible all your Servlets and JSPs at run time. You can easily tell OpenEJB where to look for ejbs on your file system, but again, this shouldn't be the classes or lib directories of your webapp. You could create a directory under your WEB-INF dir called ejbs, then add that dir to your openejb.conf as such: Deployments dir=/usr/local/share/development/openejb/WEB-INF/ejbs / When you deploy, just leave of the -m or -c options as those will move or copy the ejb jar into the OpenEJB/beans directory. You want them to stay where they are, which is your new WEB-INF/ejbs directory. -David -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 2:33 PM To: Tomcat Users List Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment
RE: java.lang.NoClassDefFoundError -- solved
Filip, I'm sorry man but I'm lost on your advice. Please give me the dummy terms to explain this. I am new to this. Thanks, Jeremy -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:48 PM To: Tomcat Users List Subject: RE: java.lang.NoClassDefFoundError -- solved 1. If you have the invoker servlet, you can access it that way, but you need the full classname look in the docs for the invoker servlet, it is a shortcut in Tomcat so you don't have to register your servlets in web.xml. Or search the archives for the invoker servlet. http://localhost:8080/openejb/servlet/org/acme/HelloOpenEJB and it also means that HelloOpenEJB has to have the package org.acme; statement in it. 2. Be default you have to register the servlets in web.xml to map them to a request. Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:36 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved Filip, I didn't register my servlet in web.xml because I didn't know I had to. I have this same setup on my Windows 2000 machine and I didn't have a web.xml file for that EJB. Also, your first statement, can you give me an example of how you do that? Thanks, Jeremy -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:33 PM To: Tomcat Users List Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml
RE: java.lang.NoClassDefFoundError -- solved
David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml. It didn't work!? Sounds simple, but we see a number of common mistakes: - Most people simply forget to uncomment it. Check and double check that. - Some set it to OPENEJB_HOME, which won't work. An actual path is required. - Some set it to point to the OpenEJB /bin directory. - The rest are usually typos in the path. Hope this helps everyone out. As an archive-searcher, I always appreciate finding emails like this. If anyone has any ideas on making the integration process even easier, I am all ears. -David -Original Message- From: Jon Wingfield [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:44 PM To: Tomcat Users List Subject: Re: java.lang.NoClassDefFoundError Looks like you've using OpenEJB ;) The OpenEJB distro comes with a war file, which looks like it's been expanded to a context by your tomcat install. However, the war file doesn't contain the required OpenEJB jar files (which probably need to be put in common/lib or server/lib). The class file for org/openejb/OpenEJB is in the openejb-0.9.1.jar. Deploy that and you should be set (well, this error will go away, at least) . HTH, Jon Jeremy Whitlock wrote: Tomcat List, This might not be a Tomcat problem but I imagine that you might be able to help anyways. Every time I start Tomcat, I get this error: StandardContext[/openejb_loader-0.9.1]: Servlet /openejb_loader-0.9.1 threw load() exception javax.servlet.ServletException: Servlet.init() for servlet loader threw exception at org.apache.catalina.core.StandardWrapper.loadServlet(Standard Wrapper.ja v a:962) at org.apache.catalina.core.StandardWrapper.load(StandardWrapper .java:821
RE: java.lang.NoClassDefFoundError -- solved
you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml. It didn't work!? Sounds simple, but we see a number of common mistakes: - Most people simply forget to uncomment it. Check and double check that. - Some set it to OPENEJB_HOME, which won't work. An actual path is required. - Some set it to point to the OpenEJB /bin directory. - The rest are usually typos in the path. Hope this helps everyone out. As an archive-searcher, I always appreciate finding emails like this. If anyone has any ideas on making the integration process even easier, I am all ears. -David -Original Message- From: Jon Wingfield [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:44 PM To: Tomcat Users List Subject: Re: java.lang.NoClassDefFoundError Looks like you've using OpenEJB ;) The OpenEJB distro comes with a war file, which looks like it's been expanded to a context by your tomcat install. However, the war file doesn't contain the required OpenEJB jar files (which probably need to be put in common/lib or server/lib). The class file for org/openejb/OpenEJB is in the openejb-0.9.1.jar. Deploy that and you should be set (well, this error will go away, at least) . HTH, Jon Jeremy Whitlock wrote: Tomcat List, This might not be a Tomcat problem but I imagine that you might be able to help anyways. Every time I start Tomcat, I get this error: StandardContext[/openejb_loader-0.9.1]: Servlet /openejb_loader-0.9.1 threw load() exception
RE: java.lang.NoClassDefFoundError -- solved
Filip is correct, follow that advice. Also, once you deploy the EJB's into OpenEJB, just leave them in the OpenEJB beans directory. Don't copy the contents of you EJB jar into the webapps dir, ejbs are not simple libraries, they must stay in the EJB container. Putting them in the webapps classes dir or lib dir will just cause classloader issues. OpenEJB will make sure all your EJBs are visible all your Servlets and JSPs at run time. You can easily tell OpenEJB where to look for ejbs on your file system, but again, this shouldn't be the classes or lib directories of your webapp. You could create a directory under your WEB-INF dir called ejbs, then add that dir to your openejb.conf as such: Deployments dir=/usr/local/share/development/openejb/WEB-INF/ejbs / When you deploy, just leave of the -m or -c options as those will move or copy the ejb jar into the OpenEJB/beans directory. You want them to stay where they are, which is your new WEB-INF/ejbs directory. -David -Original Message- From: Filip Hanik [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 2:33 PM To: Tomcat Users List Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved you can do it two ways, 1. If you have the invoker servlet, you can access it that way, but you need the full classname 2. Did you register your servlet in web.xml? Filip -Original Message- From: Jeremy Whitlock [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 12:21 PM To: 'Tomcat Users List' Cc: OpenEJB Subject: RE: java.lang.NoClassDefFoundError -- solved David, I got OpenEJB working but I'm not able to run the example. I have created and compiled the HelloBean.java,HelloHome.java,HelloObject.java and HelloWorld.java. Here is the directory structure: /usr/local/share/development/openejb | | |_WEB-INF | |_lib | |_classes | |_META-INF | | | |_ejb-jar.xml | |_org | |_acme | |_HelloBean.java |_HelloBean.class |_HelloHome.java |_HelloHome.class |_HelloObject.java |_HelloObject.class |_HelloWorld.java |_HelloWorld.class I have setup Tomcat's server.xml to do this: !-- OpenEJB ExampleText Bean Context -- Contect path=/openejb docBase=/usr/local/share/development/openejb debug=0/ Now, when I do http://localhost:8080/openejb/servlet/HelloOpenEJB I get: HTTP Status 404-/openejb/servlet/HelloOpenEJB type Status report message /openejb/servlet/HelloOpenEJB description The requested resource (/openejb/servlet/HelloOpenEJB) is not available Any ideas why? I remember in the previous version of OpenEJB, I had to place the HelloWorld.java and HelloWorld.class in the classes directory instead of the acme directory. Any ideas? Thanks, Jeremy -Original Message- From: David Blevins [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2003 1:09 PM To: 'Tomcat Users List' Subject: RE: java.lang.NoClassDefFoundError -- solved This reply is for the archives. Jeremy did finally get it running -- he simply forgot to uncomment the openejb.home init-param after setting it. The full install process In Linux, it is literally just three steps: 1. Copy the openejb_loader-0.9.1.war into the webapps dir 2. Uncomment and set the openejb.home init-param in the web.xml 3. Restart Tomcat If anything goes wrong, it *has* to be step 2, in which case see above. In Windows, it's the same process, but people constantly have problems with the NT Service version of Tomcat not actually restarting. Usually you have to re-run the Tomcat NT Service install program to get it to truly restart. Don't know why, wish I knew an easier way. How does this work? The openejb_loader will do all the busy work for you. It will add all the required libraries from the OpenEJB directories into the appropriate classloaders in Tomcat, all automatically and dynamically. The only thing you have to do is tell the loader where OpenEJB lives by setting the openejb.home init-param in the web.xml. It didn't work!? Sounds simple, but we see a number of common mistakes: - Most people simply forget to uncomment it. Check and double check that. - Some set it to OPENEJB_HOME, which won't work
