DeepakGaikwad.net

Log4j in a Web Application

admin — Thu, 19 Jan 2012 09:17:01 +0000

This article explains how to enable log4j logging and how to change configuration to generate different levels of logs in a web application. It also tells how to enable logging for different frameworks like Struts, Spring, Hibernate etc.

Programmatic Thread Dump Generation Using JMX APIs

admin — Tue, 10 Jan 2012 09:23:11 +0000

Java 5 and later provides tools with JDK to generate thread dump. jconsole is one option which connects to the running JVM and provides graphical interface to access JVM data. Another option is using jstack to generate stacktrace of certain instance. I came across a scenario, where, there was a conditional requirement to generate thread dump

First Application in Android Open GL ES

admin — Mon, 26 Dec 2011 08:08:38 +0000

In this article, we set up some basic stuff, write simple classes, and make those run on some emulator or actual android device if you have. But, the important aspect of writing a simple example is to understand the basics of OpenGL usage, why we are using some of the classes provided in API, etc.

Different Behavior of annotation @XmlMixed in JDK 1.6

admin — Tue, 06 Dec 2011 04:52:22 +0000

@XMLMixed tag behaved differently in JDK 1.6 as compared to JDK 1.5. It results in ClassCastException. Reason and possible solutions discussed in detail.

Allocate Additional Memory to Java Heap Analyzer

admin — Fri, 01 Jul 2011 09:13:01 +0000

Somebody asked me this problem that he is trying to analyze a considerably huge heap dump, and he is not able to analyze it, because IBM Heap Analyzer is not starting only. The error is – JVM not starting as the space is not getting allocated. He was claiming that the machine RAM is far more than what he is trying to allocate. How to solve this?

Technology Drivers for SOA

admin — Thu, 20 May 2010 06:42:06 +0000

Service oriented architecture gives an organization - enterprise IT. Functionalities are expected to service more than one application need i.e. enterprise need instead of residing in each application separately. When an organization decides to go for enterprise IT, there will be definitely business drivers which will result in monitory benefits. But in addition there will be technology factors, which force the management and architect to think of a SOA approach. In this post, we are going to discuss few common technology factors which drive SOA decisions.

Why Does A Business Need SOA?

admin — Thu, 13 May 2010 06:47:34 +0000

Find out why a business decides to invest huge amount of money in service oriented architecture.

Service Oriented Architecture – Introduction

admin — Wed, 12 May 2010 09:41:18 +0000

This article explains what is a service oriented architecture with an example.

Common Mistakes in Exception Handling

admin — Thu, 04 Mar 2010 05:46:33 +0000

Exception is disruption to a normal execution flow of a Java (in general any) program. This disruption can be because of a runtime problem e.g. data problem, initialization problem, etc. or because of a failing business condition. Java is capable of handling all such undesired scenarios elegantly. But when it comes to a developer to use these java generated exceptions to provide enough information to different stakeholders, then few mistakes occur.

Role of Frameworks in Architecture Definition

admin — Mon, 22 Feb 2010 17:33:20 +0000

If one wants to select an important technology trend in Java world over past few years, then it has to be the growth and wide acceptance of open source frameworks in application development. If we look back, there are examples of frameworks which got wiped out with time, also there are examples of frameworks which have changed the way applications are getting developed. These successful frameworks have contributed to give a new look to Java itself. There are many reasons behind continued success of different frameworks available in market. I ...