Can see the test page, Can register the provider but error in portlet

Question

Hi all,
I have done the following settings in my web.xml
web.xml
<servlet>
<servlet-name>calsample</servlet-name>
<servlet-class>oracle.portal.provider.v1.http.HttpProvider</servlet-class>
<init-param>
<param-name>provider_root</param-name>
<param-value>D:\pdk\pdkoct\pdk\urlservices\providers\calsample</param-value>
</init-param>
<init-param>
<param-name>sessiontimeout</param-name>
<param-value>1800000</param-value>
</init-param>
<init-param>
<param-name>debuglevel</param-name>
<param-value>3</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>calsample</servlet-name>
<url-pattern>/calsample/*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>CalendarServlet</servlet-name>
<servlet-class>com.jsos.calendar.CalendarServlet</servlet-class>
<init-param>
<param-name>config</param-name>
     <param-value>d:/tomcat/conf/calconf.txt</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>CalendarServlet</servlet-name>
<url-pattern>calendar</url-pattern>
</servlet-mapping>
provider.xml
<provider class="oracle.portal.provider.v1.http.DefaultProvider" session="true">
<portlet class="oracle.portal.provider.v1.http.DefaultPortlet" version="1">
<id>1</id>
<name>CalendarServlet</name>
<title>My Calendar Servlet</title>
<description>This is my Calendar Servlet implemented as a ServletRenderer.</description>
<timeout>5</timeout>
<timeoutMsg>Calendar Servlet Renderer example timed out</timeoutMsg>
<hasHelp>true</hasHelp>
<hasAbout>true</hasAbout>
<showDetails>true</showDetails>
<showEdit>true</showEdit>
<showEditDefault>true</showEditDefault>
<acceptContentTypes>
<item>text/html</item>
</acceptContentTypes>
<portletRenderer class="oracle.portal.provider.v1.http.ServletPageRenderer">
<appPath>/pdk/calendar</appPath>
<appRoot>D:\tomcat\webapps\pdk\WEB-INF\lib</appRoot>
     <showServlet>com.jsos.calendar.CalendarServlet</showServlet>
</portletRenderer>
</portlet>
</provider>
With the above settings, I can see the test page at http://<server_ip>:port/pdk/calsample.
I am able to register the provider on the Portal server as well.
While adding the portlet to the portal page, the Calendar Portlet is listed there.
But, when I press the preview button next to it, It shows "Error: The listener returned the following Message: 500 Internal Server Error".
Please give me a clue where I am going wrong.
Thanks in advance.

Answer 1

Well, over the past few days while desparately trying to make my portlets work, I have tried several things. I started initially with a downloaded version of pdk that contains samples of v1. My first message above reflects the setup I used with v1. While trying to figure-out the problem for error 500, I tried v2 but the same problem persisted.
However, the clue by Mr. Peter Moskovits to check the application.log has helped me to finally resolve the problem.
Here is my new WORKING setup:
\WEB-INF\web.xml:
<context-param>
<param-name>oracle.portal.log.LoggerClass</param-name>
<param-value>oracle.webdb.log.ServletLogger</param-value>
</context-param>
<context-param>
<param-name>oracle.portal.log.LogLevel</param-name>
<param-value>7</param-value>
</context-param>
<!--
Define the JPDK servlets and their parameters
-->
<servlet>
<servlet-name>SOAPServlet</servlet-name>
<display-name>SOAPServlet</display-name>
<description>Extended Portal SOAP Server</description>
<servlet-class>oracle.webdb.provider.v2.adapter.SOAPServlet</servlet-class>
<!-- The following parameter enables invalidation caching -->
<init-param>
<param-name>invalidation_caching</param-name>
<param-value>true</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>SOAPServlet</servlet-name>
<url-pattern>/providers</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>SOAPServlet</servlet-name>
<url-pattern>/providers/*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>CalendarServlet</servlet-name>
<servlet-class>com.jsos.calendar.CalendarServlet</servlet-class>
     <init-param>
     <param-name>config</param-name>
     <param-value>d:/conf/calconf.txt</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>CalendarServlet</servlet-name>
<url-pattern>/calendar</url-pattern>
</servlet-mapping>
\WEB-INF\providers\calendar\provider.xml :
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<?providerDefinition version="3.1"?>
<provider class="oracle.portal.provider.v2.DefaultProviderDefinition">
<session>true</session>
<portlet class="oracle.portal.provider.v2.DefaultPortletDefinition" >
<id>1</id>
<name>Calendar</name>
<title>Calendar Portlet</title>
<shortTitle>Calendar</shortTitle>
<description>This portlet is my calendar portlet.</description>
<timeout>30</timeout>
<timeoutMessage>Calendar Portlet timed out</timeoutMessage>
<renderer class="oracle.portal.provider.v2.render.RenderManager" >
<showPage/calendar</showPage>
</renderer>
</portlet>
</provider>
\WEB-INF\deployment\calendar.properties
serviceClass=oracle.webdb.provider.v2.adapter.soapV1.ProviderAdapter
loaderClass=oracle.portal.provider.v2.http.DefaultProviderLoader
showTestPage=true
definition=providers/calendar/provider.xml
autoReload=true
debugLevel=7
With the above setup, I am able to access the test page successfully at:
http://[server-ip]:port/jpdk/providers/calendar
Which lists my portlet, Calendar.
Upon registering the portlet provider with the above URL, the portlet provider lists my Calendar portlet there and it shows-up the portlet successfully there.
Thank you all.