4 ways to set up datasources in Jboss AS 7

Last year my company decided to move from JBoss 4.x/5.x to Jboss AS 7. We use Maven and IZPack plugin to create automated deployment to Jboss 4. As a part of IZPack plugin, we would write the install.xmls for various environment, which would help us deploy war files, log.xml, jars, properties file in respective folders. So the advantage was that Jboss-4 allows you to deploy several xxx-ds.xml files in deploy folder and you can have multiple apps deployed in same Jboss and each app uses it’s respective xxx-ds.

@ Dinesh

5 min read
Jul 22, 2015
4 ways to set up datasources in Jboss AS 7

Install Or Manage multiple versions of Java on OS X

A few weeks ago my Mac hard drive crashed and I had to get a new grad drive. As part of upgrade, I had to wipe my drive clean and install Yosemite. What I did not realize was that Apple had goofed up Java instlation on Mac, as result of which my IntelliJ idea compalained that it requires legacy Jdk version of Java 6. The dilemma that I had was hwo am I going to mainain the different version of Java.

@ Dinesh

3 min read
Mar 30, 2015
Install Or Manage multiple versions of Java on OS X

Restful Webservice in 7 Steps using Spring boot

Last week I was working on a new application which required me to build a web service to access it’s functionality. I decided to check out Spring 4 RestController. I was amazed at how far we have come from writing all the boiler template code, xmls etc for making a restful call. With Spring4 boot, it was matter of adding simple annotation for RestController. I will be honest, I have not been up to date on how to use a Restful webservice, I built a couple of Restful service a couple of year ago, but most of the services in my current project are old school (SOAP calls), so I never got a chance to build one from scratch and at peace.

@ Dinesh

5 min read
Jan 26, 2015
Restful Webservice in 7 Steps using Spring boot

A quick tutorial on SAAJ API

We ran into an issue last week. I had to call a third party web service that was built in PHP. Anyone who wokrs with Java will tell you that calling a web service is not more 15 minutes coding. You take the wsdl, run wsdl2Java command from Axis2 and start calling the service. Like I said before, things are never so straightforward. No matter what version of Axis or CXF we used, we kept getting this error:

@ Dinesh

5 min read
Oct 17, 2014
A quick tutorial on SAAJ API

Read / Write Excel file in Java using Apache POI

About a year or two ago I was working with finance team where they wanted to pull the credit card transactions for all the customer using various combinations. Ex – – Get the credit card txns for today or certain date. – Get the txns for customer who used Mastercard or Visa. However they wanted this application to generate a Excel file and save it on their local machine so that they could prepare reports for our CEO.

@ Dinesh

5 min read
Apr 18, 2014
Read / Write Excel file in Java using Apache POI

13 Most Common Java Keytool Keystore Commands

I was working on a project last month where I had to call a third-party web service. The third-party web service wanted me to add a SSL keystore and I struggled. I could have gone to my UNIX Admin and asked him to do this job but decided to learn about all about keystores. I went through couple of forums and SO and ended my spending 2 – 3 hours reading about keystores and commonly used commands.

@ Dinesh

3 min read
Mar 16, 2014
13 Most Common Java Keytool Keystore Commands

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