I still get this exception: 4 [main] ERROR org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/ptest] - Servlet /ptest threw load() exception java.lang.InstantiationException
Here is the modified web.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd";> <web-app > <taglib> <taglib-uri>http://java.sun.com/portlet</taglib-uri> <taglib-location>tld/portlet.tld</taglib-location> </taglib> <servlet> <servlet-name>HelloWorld</servlet-name> <display-name>HelloWorld Wrapper</display-name> <description>Automated generated Portlet Wrapper</description> <servlet-class>javax.portlet.GenericPortlet </servlet-class> <init-param> <param-name>portlet-name</param-name> <param-value>HelloWorld</param-value> </init-param> <load-on-startup>1</load-on-startup> <init-param> <param-name>portlet-class</param-name> <param-value>testpluto.HelloWorld </param-value> </init-param> <init-param> <param-name>portlet-guid</param-name> <param-value>HelloPluto.HelloWorld </param-value> </init-param> </servlet> <servlet-mapping> <servlet-name>HelloWorld</servlet-name> <url-pattern>/PlutoInvoker/HelloWorld</url-pattern> </servlet-mapping> </web-app> Should I use JetSpeed? I thought Pluto-1.1.4 can handle invocation. Also GenericPortlet is an abstract class. HelloWorld is extending this abstract class. Is there some bug in my JRE that disables instantiation of a class that is extending an abstract class? Guess I don't understand this concept. Why an abstract class? Why not an interface? Also, what is the purpose of org.apache.pluto.core.PortletServlet that is used in the testsuite that came with Pluto-1.1.4. I tried extending HelloWorld to PortletServlet. It is not coming up with an instantiation exception, but has certain session parameters missing viz: javax.portlet.response javax.portlet.request org.apache.pluto.core.method I tried injecting these parameters in index.jsp as: request.getSession().setAttribute("javax.portlet.response", request); request.getSession().setAttribute("javax.portlet.request",response ); request.getSession().setAttribute("org.apache.pluto.core.method", new Integer(1)); But that didn't work. There is an InternalPortletRequest and InternalPortletResponse that get set by the Invoker. Any help appreciated. Thanks Murthy -----Original Message----- From: Elliot Metsger [mailto:[EMAIL PROTECTED] Sent: Saturday, September 01, 2007 9:46 AM To: [email protected] Subject: Re: Pluto 1.1.4 - java.lang.InstantiationException while deploying It looks like your web.xml is incorrect. For Pluto 1.1, you need to have <load-on-startup> (which you have commented out), the <init-param> portlet-name (check), and you need a <servlet-mapping> "HelloWorld" to "/PlutoInvoker/HelloWorld/" (which you don't have at all). The other elements in your web.xml (portlet-guid, portlet-class) are for Pluto 1.0. Which are fine to keep in your web.xml if you are planning to deploy the portlet in multiple container. I think the existing servlet mapping you have is incorrect for both pluto 1.1 and pluto 1.0 containers. As an aside, your web.xml contains a doctype for servlet 2.3, but your <web-app> and following is in the servlet 2.4 namespace. That may confuse things as well. Tomcat is probably forgiving but other servlet containers may not be. Elliot Murthy Gandikota wrote: > Hi > I am testing a HelloWorld app. Here is the HelloWorld.java > > package testpluto; > > import javax.portlet.GenericPortlet; > import javax.portlet.RenderRequest; > import javax.portlet.RenderResponse; > import javax.portlet.PortletException; > import java.io.IOException; > > import javax.servlet.*; > > public class HelloWorld extends GenericPortlet { > protected void doView(RenderRequest request, > RenderResponse response) throws > PortletException, IOException { > response.setContentType("text/html"); > response.getWriter().println("Hello Portlet"); > } > } > > I have successfully compiled this class and > The path to it is WEB-INF/classes/tespluto > > Then I added these to the web.xml > > <?xml version="1.0" encoding="UTF-8"?> > <!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application > 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd";> > <web-app version="2.4" > xmlns="http://java.sun.com/xml/ns/j2ee"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee > http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";> > <servlet> > <servlet-name>HelloWorld</servlet-name> > <display-name>HelloWorld Wrapper</display-name> > <description>Automated generated > Portlet Wrapper</description> > <servlet-class>javax.portlet.GenericPortlet > </servlet-class> > <init-param> > <param-name>portlet-name</param-name> > <param-value>HelloWorld</param-value> > </init-param> > <!-- <load-on-startup>1</load-on-startup> --> > <init-param> > <param-name>portlet-class</param-name> > <param-value>testpluto.HelloWorld > </param-value> > </init-param> > <init-param> > <param-name>portlet-guid</param-name> > <param-value>HelloPluto.HelloWorld > </param-value> > </init-param> > <!-- <load-on-startup>1</load-on-startup> --> > </servlet> > <servlet-mapping> > <servlet-name>HelloWorld</servlet-name> > <url-pattern>/hello/*</url-pattern> > </servlet-mapping> > </web-app> > > The WEB-INF/portlet.xml > <portlet-app > xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd"; > version="1.0" > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd > > http://java.sun.com/xml/ns/portlet/portlet-app_1_0.xsd";> > <portlet> > <portlet-name>HelloWorld</portlet-name> > <display-name>Change Case Portlet</display-name> > <portlet-class>testpluto.HelloWorld</portlet-class> > <supports> > <mime-type>text/html</mime-type> > <portlet-mode>view</portlet-mode> > </supports> > <portlet-info> > <title>Hello World</title> > </portlet-info> > <init-param> > <name>config</name> > <value>/WEB-INF/ptest-config.xml</value> > </init-param> > </portlet> > > > </portlet-app> > > The index.jsp > <jsp:forward page="/hello"> > > I restarted Pluto several times and all these times when accessing > http://localhost:8080/ptest/hello > > I get the following error in the Catalina.out > > 4 [http-8080-Processor25] ERROR > org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/ptest].[HelloWorld] > - Allocate exception for servlet HelloWorld > java.lang.InstantiationException > at > sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:30) > at java.lang.reflect.Constructor.newInstance(Constructor.java:494) > at java.lang.Class.newInstance0(Class.java:350) > at java.lang.Class.newInstance(Class.java:303) > at > org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1055) > 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.authenticator.SingleSignOn.invoke(SingleSignOn.java:392) > 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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) > at > org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) > at > org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) > at > org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684) > at java.lang.Thread.run(Thread.java:595) > > I have been breaking my head over these for nearly 40 hours now. > Sorry, I don't know maven and don't intend to know at this time. I am fine > with ant. > It took me a while to understand the deploy. I even tried deploying from the > manager/admin screens. Still > The same result. > > I'd appreciate all of the help you can give me in making this successful. > > Thanks > Murthy >
