Giampiero,
I originally had a similar problem where Tomcat could not locate my
HelloWorld portlet. However, I don't believe I was seeing the same
exception as you. I was seeing a class not found for the HelloWorld
portlet. I finally resolved the problem by doing away with my CLASSPATH all
together. Apparently my CLASSPATH settings were confusing the class loaders
of Tomcat.
Hope this helps.
Chuck
-----Original Message-----
From: Giampiero DeCiantis [mailto:[EMAIL PROTECTED]]
Sent: Thursday, May 10, 2001 3:38 PM
To: [EMAIL PROTECTED]
Subject: Newbie: HelloWorld will not work for me
I have tried everything in every mailing list about the subject.
I have just re-installed Tomcat and have written HelloWorldPortlet.class
which does not have any package associated with it. Then I copied it to
WEB-INF/classes. This didn't work, so I tried putting the class into a
jar and putting the jar file into the WEB-INF/lib directory. This also
didn't work. I haven't done anything with the classpath that isn't out
of the ordinary (ie CLASSPATH contains usual entries).
I can't think of anything else. I have tried it all. Any suggestions
would be very welcome.
This is the error that I get:
Exception: java.lang.NoClassDefFoundError:
org/apache/jetspeed/portal/portlets/AbstractPortlet
Stack Trace follows:
java.lang.NoClassDefFoundError:
org/apache/jetspeed/portal/portlets/AbstractPortlet
at java.lang.ClassLoader.defineClass0(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:486)
at
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:111)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:248)
at java.net.URLClassLoader.access$100(URLClassLoader.java:56)
at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:297)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:286)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at
org.apache.tomcat.loader.AdaptiveClassLoader.loadClass(AdaptiveClassLoad
er.java:446)
at java.lang.ClassLoader.loadClass(ClassLoader.java:253)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:313)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:120)
at
org.apache.jetspeed.portal.factory.PortletFactory.getPortlet(PortletFact
ory.java:411)
at
org.apache.jetspeed.portal.factory.PortletFactory.getPortlet(PortletFact
ory.java:218)
at
org.apache.jetspeed.portal.factory.PortletFactory.getPortlet(PortletFact
ory.java:196)
at
org.apache.jetspeed.portal.factory.PortletFactory.getPortlet(PortletFact
ory.java:172)
at
org.apache.jetspeed.portal.portlets.customize.CustomizePortlet.getCapabi
lities(CustomizePortlet.java:593)
at
org.apache.jetspeed.portal.portlets.customize.CustomizePortlet.getPageOn
e(CustomizePortlet.java:264)
at
org.apache.jetspeed.portal.portlets.customize.CustomizePortlet.getConten
t(CustomizePortlet.java:177)
at
org.apache.jetspeed.portal.controls.ClearPortletControl.getContent(Clear
PortletControl.java:71)
at
org.apache.jetspeed.portal.controllers.RowColumnPortletController.getHTM
LContent(RowColumnPortletController.java:166)
at
org.apache.jetspeed.portal.controllers.RowColumnPortletController.getCon
tent(RowColumnPortletController.java:115)
at
org.apache.jetspeed.portal.PortletSet.getContent(PortletSet.java:277)
at
org.apache.jetspeed.modules.screens.Customize.getPSMLContent(Customize.j
ava:224)
at
org.apache.jetspeed.modules.screens.Customize.doBuild(Customize.java:148
)
at org.apache.turbine.modules.Screen.build(Screen.java:100)
at org.apache.turbine.modules.ScreenLoader.eval(ScreenLoader.java:125)
at
org.apache.jetspeed.modules.layouts.JetspeedJspLayout.doBuild(JetspeedJs
pLayout.java:103)
at org.apache.turbine.modules.Layout.build(Layout.java:93)
at org.apache.turbine.modules.LayoutLoader.exec(LayoutLoader.java:122)
at
org.apache.turbine.modules.pages.DefaultPage.doBuild(DefaultPage.java:17
0)
at org.apache.turbine.modules.Page.build(Page.java:92)
at org.apache.turbine.modules.PageLoader.exec(PageLoader.java:122)
at org.apache.turbine.Turbine.doGet(Turbine.java:364)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:404)
at org.apache.tomcat.core.Handler.service(Handler.java:286)
at
org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372)
at
org.apache.tomcat.core.ContextManager.internalService(ContextManager.jav
a:797)
at
org.apache.tomcat.core.ContextManager.service(ContextManager.java:743)
at
org.apache.tomcat.service.http.HttpConnectionHandler.processConnection(H
ttpConnectionHandler.java:210)
at
org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:416
)
at
org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java:49
8)
at java.lang.Thread.run(Thread.java:484)
_______________________
Giampiero De Ciantis
QA Analyst
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