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Sekhar Vajjhala

Sekhar Vajjhala is a senior staff engineer at Sun Microsystems. He has been working on data binding for W3C XML Schema and is the specification lead for JAXB. He has represented Sun on the Web Services Interoperability Organization (WS-I) Schema Work Plan Group. Prior to JAXB, he has worked on various security related technologies and specifications. He holds a B.S. in E.E. from I.I.T. Kanpur, India and M.S. in Computer Science from University of Wisconsin, USA.

 

sekhar's blog

WebLogic to GlassFish : Sharing classes using APP-INF

Posted by sekhar on March 23, 2009 at 12:31 PM PDT

Migration Issue:

WebLogic application server supports sharing of utility classes
in an ear file. The shared utility classes can be packaged in one
of two directories :

  • APP-INF/lib : shared jar files can be placed here.

JBoss to GlassFish: Session Bean and Component inheritance

Posted by sekhar on February 3, 2009 at 7:51 AM PST

Migration Issue: This migration issue is related to the
inheritance of client view in a session bean. Consider the
following code fragment where session beans A and B exposes
local business interface ( or client views using EJB 3.X
specification terminology).

JBoss to GlassFish : taglib-location

Posted by sekhar on January 21, 2009 at 7:48 PM PST

Recently, I came across the following JBoss -> GlassFish migration
issue involving taglib-location in web.xml. Here is how I dealt with
it.

In a web-application's web.xml, <jsp-config> element can be used
to provide configuration information for JSP files.

GlassFish Migration: Java EE Module Loading Order (I)

Posted by sekhar on January 20, 2009 at 9:13 PM PST

Recently there has been some questions regarding order in which
Java EE modules in a Java EE eneterprise applications. The order in
which Java EE modules are loaded varies between Java EE application
servers. So it is a migration issue issue. This is the first of my blogs on this topic.

GlassFish Migration: WebLogic's Split Directory to Ear

Posted by sekhar on September 29, 2008 at 9:42 AM PDT

GlassFish Migration: WebLogic's Split Directory To Ear

As I wrote in the blog on href="http://weblogs.java.net/blog/sekhar/archive/2008/09/_when_migrating_1.html">Verification Tools for Migration to GlassFish, GlassFish
verifier tool is handy for verifiying the Java EE compliance
of an application.

Verification Tools for Migration to GlassFish

Posted by sekhar on September 23, 2008 at 6:29 PM PDT

When migrating a Java EE/J2EE application to glassfish, often
the first step is to determine if the application is using non
portable Java EE/J2EE application features. In my previous
GlassFish
migration blogs
, I demonstrated the use of the GlassFish
verifier tool for this purpose.

Migrating WebLogic's JSP SimpleTag example to GlassFish

Posted by sekhar on June 16, 2008 at 6:28 AM PDT

As I outlined in href="http://weblogs.java.net/blog/sekhar/archive/2008/02/migrate_to_glas.html">Migrate
to GlassFish acitivities , I am migrating samples from different
application servers to GlassFish to illustrate migration to
GlassFish.

Migrating WebLogic's JSP TagHandler example to GlassFish

Posted by sekhar on May 20, 2008 at 2:50 AM PDT

As I outlined in href="http://weblogs.java.net/blog/sekhar/archive/2008/02/migrate_to_glas.html">Migrate
to GlassFish acitivities , I am migrating samples from different
application servers to GlassFish to illustrate migration to
GlassFish.

Migrating WebSphere BasicCalculator example to GlassFish

Posted by sekhar on February 22, 2008 at 8:45 AM PST

As I outlined in Migrate to GlassFish acitivities , I am migrating samples from different application servers to GlassFish to illustrate migration to GlassFish. Here, I selected a WebSphere Application Server V6.1 (WAS for short in the rest of the blog) and migrated it to GlassFish.

Migrating JBoss's Sample JSF-EJB3 Application To GlassFish

Posted by sekhar on February 11, 2008 at 9:32 AM PST

As part of the Migrate
to GlassFish acitivities
, I migrated a JBoss sample to GlassFish. I am going to describe what I had to do to migrate the application.

Sample Application

The sample application I migrated is "Sample JSF-EJB3 Application" from JBoss Getting Started Guide.