ADMA0010E: A Validation error occurred in task Selecting virtual hosts for Web modules

If your come across the following error while deploying a web application to websphere

ADMA0010E: A Validation error occurred in task Selecting virtual hosts for Web modules

Then the issue would be your might be missing the following file in your web archive (war)

ibm-web-bnd.xml
ibm-web-ext.xml 

Ensure that you have those files present in the archive and the redploy the application. 
I have come across this error while deploying a new web module to Websphere commerce server using wcbd scripts.

Here is the complete error I have seen in my wcbd wasadmin target 

wcbd.wsadmin.helper:
   [echoNL] Running wsadmin on localhost with /usr/WebSphere/AppServer70/profiles/wcbd/dist/server/wcbd-deploy-server-RELEASE-Rel1-BUILD-2013-12-31_04-02-20-252/scripts/wcbd-wsadmin.py.
  [wsadmin] profileName=template registry=/usr/WebSphere/AppServer70/properties/profileRegistry.xml
  [wsadmin] profileHome=/usr/WebSphere/AppServer70/profiles/template
  [wsadmin] WASX7209I: Connected to process "dmgr" on node templateCellManager01 using SOAP connector;  The type of process is: DeploymentManager
  [wsadmin] WASX7303I: The following options are passed to the scripting environment and are available as arguments that are stored in the argv variable: "[WC_template, /usr/WebSphere/AppServer70/profiles/wcbd/dist/server/wcbd-deploy-server-RELEASE-Rel1-BUILD-2013-12-31_04-02-20-252/scripts, /usr/WebSphere/AppServer70/profiles/wcbd/dist/server/wcbd-deploy-server-RELEASE-Rel1-BUILD-2013-12-31_04-02-20-252/working/module,  , TmplGenericPaymentPlugin,WebSphereCommerceServerExtensionsData, WebSphere Commerce DB2 DataSource template, TmplPenguin,  , /usr/WebSphere/AppServer70/profiles/wcbd/dist/server/wcbd-deploy-server-RELEASE-Rel1-BUILD-2013-12-31_04-02-20-252/working/partialapp.zip, false, 300,  , false,  ,  ,  ,  , true, false]"
  [wsadmin] Deploying Web module TmplPenguin.war to WC_template.
  [wsadmin] Started: 2013/12/31 07:07:18
  [wsadmin] WASX7327I: Contents of was.policy file:
  [wsadmin]  //
  [wsadmin] // Template policy file for enterprise application.
  [wsadmin] // Extra permissions can be added if required by the enterprise application.
  [wsadmin] //
  [wsadmin] // NOTE: Syntax errors in the policy files will cause the enterprise application FAIL to start.
  [wsadmin] //       Extreme care should be taken when editing these policy files. It is advised to use
  [wsadmin] //       the policytool provided by the JDK for editing the policy files
  [wsadmin] //       (WAS_HOME/java/jre/bin/policytool). 
  [wsadmin] //
  [wsadmin] 
  [wsadmin] grant codeBase "file:${application}" {
  [wsadmin] };
  [wsadmin] 
  [wsadmin] grant codeBase "file:${jars}" {
  [wsadmin] };
  [wsadmin] 
  [wsadmin] grant codeBase "file:${connectorComponent}" {
  [wsadmin] };
  [wsadmin] 
  [wsadmin] grant codeBase "file:${webComponent}" {
  [wsadmin] };
  [wsadmin] 
  [wsadmin] grant codeBase "file:${ejbComponent}" {
  [wsadmin] };
  [wsadmin] 
  [wsadmin] 
  [wsadmin] WASX7017E: Exception received while running file "/usr/WebSphere/AppServer70/profiles/wcbd/dist/server/wcbd-deploy-server-RELEASE-Rel1-BUILD-2013-12-31_04-02-20-252/scripts/wcbd-wsadmin.py"; exception information: com.ibm.ws.scripting.ScriptingException: WASX7109E: Insufficient data for install task "MapWebModToVH
  [wsadmin] 
  [wsadmin] ADMA0010E: A Validation error occurred in task Selecting virtual hosts for Web modules. A virtual host is not specified for Web module TmplPenguin with URI TmplPenguin.war,WEB-INF/web.xml."
  [wsadmin] 

Presentation on Exception Handling

Here are my presentations on Slideshare

Unable to access Eclipse's secure store

Unable to access Eclipse's secure store. Please verify your secure store settings. org.eclipse.equinox.security.storage.StorageException: Unable to locate secure storage module (org.eclipse.equinox.security.windows password provider 64bit).

If you come across this error then rename the .eclipse folder inside your home to get it resolved.
This issue happens when you switch between a 32 bit and a 64 bit eclipse usually.

In my case it occurred when I switched between eclipse Indigo vs STS ide.

List email = reasonsMyBossWillApproveAttending.get("SpringOne2gx")

Today morning I received a News letter email from SpringSource about their springone conference. The email is sensational and its the first time I'm seeing such a beautifully constructed email which is really helpful too. No need to search for words to get an approval from your manager. Just edit the template.
See email in action

 

No repository found containing: Error while updating ADT

If you come across the following errors while updating Android ADT

No repository found containing: org.eclipse.update.feature,org.eclipse.datatools.enablement.oda.feature,1.10.0.v201201161512-7A7T7CDZRDKHF_HnGjOX

Disable all the update sites except ADT and the go for Check for update one more time. It will work.

Adding and Removing Spring initialized beans from Container

Yesterday one of my friend shoot a question on Spring bean management on runtime. His requirement is to remove bean for container and register it back after doing some operation.
The idea is straight, We might run into these situations depending on our business use cases complexities.

Here is a test case code snippet to remove bean and register it again to the spring container

Spring Context XML

        
	
		
			Shinu
		
	

JUnit Test class

package com.shinu.demo;

import javax.servlet.ServletContext;

import junit.framework.TestCase;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.NoSuchBeanDefinitionException;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.context.ApplicationContext;
import org.springframework.core.io.FileSystemResourceLoader;
import org.springframework.mock.web.MockServletContext;
import org.springframework.web.context.ConfigurableWebApplicationContext;
import org.springframework.web.context.support.XmlWebApplicationContext;

public class SpringWebDynamicCreationTest extends TestCase {

	final static Log logger = LogFactory
			.getLog(SpringWebDynamicCreationTest.class);

	protected static ConfigurableWebApplicationContext context;

	ServletContext mockServletContext;

	@Override
	protected void setUp() throws Exception {
		mockServletContext = new MockServletContext("/WebContent",
				new FileSystemResourceLoader());
		context = new XmlWebApplicationContext();
		context.setConfigLocations(new String[] { "/WEB-INF/config/springContext.xml" });
		context.setServletContext(mockServletContext);
		context.refresh();
		context.registerShutdownHook();
	}

	public void testAddAndRemoveObjects() throws ClassNotFoundException {
		Demo demo = getBean(context);
		assertEquals("Shinu", demo.getName());

		ConfigurableListableBeanFactory configurableListableBeanFactory = context
				.getBeanFactory();

		BeanDefinitionRegistry beanDefinitionRegistry = (BeanDefinitionRegistry) configurableListableBeanFactory;
		// Removing the bean from container
		beanDefinitionRegistry.removeBeanDefinition("demo");
		
		// Trying to obtains bean again from container. This will throw a null		
		demo = getBean(context);
		//demo object will be null here
		assertNull(demo);
		
		// Creating and registering bean to the container		
		BeanDefinition beanDefinition = new RootBeanDefinition(Demo.class);
		beanDefinition.setAttribute("name", "Shinu");

		beanDefinitionRegistry.registerBeanDefinition("demo", beanDefinition);
		context.refresh();
	
		//Obtaining from container again
		demo = getBean(context);
		assertEquals("Shinu", demo.getName());

	}

	private static Demo getBean(ApplicationContext applicationContext) {		
		try{
			return (Demo) applicationContext.getBean("demo");
		}catch(NoSuchBeanDefinitionException e){
			return null;
		}
	}

}

Nokia N900 and GPS

After installing Community SSU in my Nokia N900, i found a strange issue that my GPS stopped working. My GPS apps always failed in looking for a GPS fix. 
After a few googling and work around, I finally made it work.

Here is that you need to do if you run across the same issue.

1. Edit the "Location Settings" in Settings and change the "Network Position" server to "supl.google.com" (Looks like supl.nokia.com is not working after SSU update)
2. Install location-gui deb package and start a test to figure out the GPS availability and usage.

Link to download location-gui  

wget http://repository.maemo.org/pool/maemo5.0/non-free/l/location-test-gui/location-test-gui_0.92-1+0m5_armel.deb

dpkg -i location-test-gui_0.92-1+0m5_armel.deb 

3. Run location-test and start looking for GPS.

Voila, it worked.