I am new to portlet developmet. I was trying to develop and deploy simple portlet in Jboss portal 2.7.2 and Jboss AS 4.2.3/
Following is the code
Portlet extending GenericPortlet
package com.sampleportlet;
import java.io.IOException;
import javax.portlet.ActionRequest;
import javax.portlet.ActionResponse;
import javax.portlet.GenericPortlet;
import javax.portlet.PortletConfig;
import javax.portlet.PortletException;
import javax.portlet.PortletRequestDispatcher;
import javax.portlet.RenderRequest;
import javax.portlet.RenderResponse;
import javax.portlet.UnavailableException;
public class First extends GenericPortlet {
public void init(PortletConfig portletConfig) throws UnavailableException,
PortletException {
super.init(portletConfig);
}
/**
* Helper method to serve up the mandatory view mode.
*/
protected void doHelp(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
response.setContentType("text/html");
PortletRequestDispatcher dispatcher = getPortletContext()
.getRequestDispatcher("/WEB-INF/jsp/First_help.jsp");
dispatcher.include(request, response);
}
/**
* Helper method to serve up the mandatory view mode.
*/
protected void doEdit(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
response.setContentType("text/html");
PortletRequestDispatcher dispatcher = getPortletContext()
.getRequestDispatcher("/WEB-INF/jsp/First_edit.jsp");
dispatcher.include(request, response);
}
/**
* Helper method to serve up the mandatory view mode.
*/
protected void doView(RenderRequest request, RenderResponse response)
throws PortletException, IOException {
response.setContentType("text/html");
String name = (String) request.getParameter("name");
if (name != null) {
PortletRequestDispatcher reqDispatcher = getPortletContext()
.getRequestDispatcher("/WEB-INF/jsp/First_view.jsp");
request.setAttribute("name", name);
reqDispatcher.include(request, response);
} else {
PortletRequestDispatcher reqDispatcher = getPortletContext()
.getRequestDispatcher("/WEB-INF/jsp/First_edit.jsp");
reqDispatcher.include(request, response);
}
}
public void processAction(ActionRequest actionRequest,
ActionResponse actionResponse) throws PortletException,
IOException, UnavailableException {
String name = (String) actionRequest.getParameter("name");
// send name back to view
actionResponse.setRenderParameter("name", name);
}
}
WEB-INF/portlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<portlet-app xmlns="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd http://java.sun.com/xml/ns/portlet/portlet-app_2_0.xsd"
version="2.0">
<portlet>
<portlet-name>FirstJspPortlet</portlet-name>
<display-name>First Portlet</display-name>
<portlet-class>com.sampleportlet.First</portlet-class>
<supports>
<mime-type>text/html</mime-type>
<portlet-mode>VIEW</portlet-mode>
<portlet-mode>EDIT</portlet-mode>
<portlet-mode>HELP</portlet-mode>
</supports>
<portlet-info>
<title>First Portlet</title>
</portlet-info>
</portlet>
</portlet-app>
WEB-INF/portlet-instances.xml
<?xml version="1.0" standalone="yes"?>
<deployments>
<deployment>
<instance>
<instance-id>FirstPortletInstance</instance-id>
<portlet-ref>FirstJspPortlet</portlet-ref>
</instance>
</deployment>
</deployments>
WEB-INF/firstjspportlet-object.xml
<?xml version="1.0" encoding="UTF-8"?>
<deployments>
<deployment>
<if-exists>overwrite</if-exists>
<parent-ref>default.default</parent-ref>
<window>
<window-name>FirstPortletWindow</window-name>
<content>
<content-type>portlet</content-type>
<content-uri>FirstPortletInstance</content-uri>
</content>
<region>center</region>
<height>1</height>
</window>
</deployment>
</deployments>
WEB-INF/Jboss-portlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE portlet-app PUBLIC "-//JBoss Portal//DTD JBoss Portlet 2.6//EN"
"http://www.jboss.org/portal/dtd/jboss-portlet_2_6.dtd">
<portlet-app>
<remotable>true</remotable>
<portlet>
<portlet-name>FirstJspPortlet</portlet-name>
</portlet>
</portlet-app>
Error I am getting is
2010-04-18 22:09:22,953 DEBUG [org.jboss.portal.portlet.container.com_sampleportlet_First] Loading portlet class com.sampleportlet.First
2010-04-18 22:09:22,958 DEBUG [org.jboss.portal.portlet.container.com_sampleportlet_First] Creating portlet object com.sampleportlet.First
2010-04-18 22:09:22,962 ERROR [org.jboss.portal.portlet.impl.container.LifeCycle] Cannot start object
org.jboss.portal.portlet.container.PortletInitializationException: The portlet FirstJspPortlet threw a runtime exception during init
at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.start(PortletContainerImpl.java:288)
at org.jboss.portal.portlet.impl.container.PortletContainerLifeCycle.invokeStart(PortletContainerLifeCycle.java:76)
at org.jboss.portal.portlet.impl.container.LifeCycle.managedStart(LifeCycle.java:92)
at org.jboss.portal.portlet.impl.container.PortletApplicationLifeCycle.startDependents(PortletApplicationLifeCycle.java:351)
at org.jboss.portal.portlet.impl.container.LifeCycle.managedStart(LifeCycle.java:128)
at org.jboss.portal.portlet.deployment.jboss.PortletAppDeployment.start(PortletAppDeployment.java:226)
at org.jboss.portal.core.deployment.jboss.PortletAppDeployment.start(PortletAppDeployment.java:94)
at org.jboss.portal.server.deployment.jboss.DeploymentContext.start(DeploymentContext.java:99)
at org.jboss.portal.server.deployment.jboss.PortalDeploymentInfoContext.start(PortalDeploymentInfoContext.java:220)
at org.jboss.portal.server.deployment.jboss.ServerDeployer.start(ServerDeployer.java:217)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at sun.reflect.GeneratedMethodAccessor212.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy222.deploy(Unknown Source)
at org.jboss.portal.server.deployment.jboss.ServerDeployer.deploy(ServerDeployer.java:259)
at org.jboss.portal.server.deployment.WebAppAdapter.deploy(WebAppAdapter.java:53)
at org.jboss.portal.server.deployment.WebAppIntercepter.handleNotification(WebAppIntercepter.java:159)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.notification.NotificationListenerProxy.invoke(NotificationListenerProxy.java:153)
at $Proxy224.handleNotification(Unknown Source)
at org.jboss.mx.util.JBossNotificationBroadcasterSupport.handleNotification(JBossNotificationBroadcasterSupport.java:127)
at org.jboss.mx.util.JBossNotificationBroadcasterSupport.sendNotification(JBossNotificationBroadcasterSupport.java:108)
at org.jboss.deployment.SubDeployerSupport.emitNotification(SubDeployerSupport.java:340)
at org.jboss.deployment.SubDeployerSupport.start(SubDeployerSupport.java:308)
at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:482)
at sun.reflect.GeneratedMethodAccessor105.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
at org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)
at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy202.start(Unknown Source)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
at sun.reflect.GeneratedMethodAccessor26.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy9.deploy(Unknown Source)
at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
at $Proxy0.start(Unknown Source)
at org.jboss.system.ServiceController.start(ServiceController.java:417)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy4.start(Unknown Source)
at org.jboss.deployment.SARDeployer.start(SARDeployer.java:304)
at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:766)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
at $Proxy5.deploy(Unknown Source)
at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
at org.jboss.Main.boot(Main.java:200)
at org.jboss.Main$1.run(Main.java:508)
at java.lang.Thread.run(Thread.java:613)
Caused by: java.lang.ClassCastException: com.sampleportlet.First
at org.jboss.portal.portlet.impl.jsr168.PortletContainerImpl.start(PortletContainerImpl.java:254)
Please let me know what needs to be changed.