Interview Questions on websphere portal - Series1

Interview Questions on websphere portal

1)servlet and portlet difference
2)portlet wiring
3)jsr 286

4)interportlet comm
5)jsr 168 286
6)url mappings
7)portlet code vs servlet
8)themes and skins

9)rad
*10)maven
*11))oblix

Commands to Start/stop server - on Websphere Portal

typical Installation Path:

/opt/IBM/WebSphere/AppServer/bin

./stopServer.sh WebSphere_Portal -username -password

./startServer.sh WebSphere_Portal -username -password

Command to Start/Stop Node Manager –

./stopNode.sh -username -password

./startNode.sh

commands for sync up nodes

./syncNode.sh –username -password 

com.ibm.wps.command.MissingParameterException: EJPEB0612E: AbstractXmlExtractCommand Missing Parameter.

solution:

Problem: Error occurs when exporting files from various portlets

When you export files from the Manage Pages, Template Library or Policy administrative portlets, you may receive one of the error messages below if using Internet Explorer:

• Manage Pages portlet: com.ibm.wps.command.MissingParameterException: EJPEB0612E: AbstractXmlExtractCommand Missing Parameter.
• Template Library portlet: You will get an error message or message in browser information bar
• Policy portlet: XML document must have a top level element. Error processing resource

Cause: Browser security settings prevented the browser from downloading the file export.

Solution: Perform the following steps:

1. Open your Internet Explorer browser.
2. Click Tools > Internet Options.
3. Click the Security tab.
4. Click the Custom Level button.
5. Under the Downloads section, click the Enable radio button under Automatic prompting for file downloads.

http://publib.boulder.ibm.com/infocenter/wpdoc/v6r0/index.jsp?topic=/com.ibm.wp.zos.doc/wps/tbl_adm.html

Portal DoJO

WebSphere Portal 6.1, the instance of the IBM Dojo Toolkit is based on version 1.1.1

Date: 10/24/2009

Problem: in RAD 7.5
"IWAL0071E No corresponding public render parameter definition"

Resolution: the identifier block is missing the identifier element in the Public-render-parameter section in Portlet.xml
check the portlet.xml for any missing identifier sections.

Problem 10/23/2009

Problem:
class file has wrong version 50.0, should be 49.0 


solution:
downgrade your JDK to 1.5 


Below are a list of some of the version numbers and their corresponding Java runtimes:
Version 50.0 = Java 1.6.x
Version 49.0 = Java 1.5.x
Version 48.0 = Java 1.4.x

Problem - 10/19/09

Problem:
com.sun.faces.application.ApplicationAssociate createAndMaybeStoreManagedBeans Can't instantiate class:


Resolution:
Constructor  in one of the beans.
Try fixing the constructor to sync up with the super()