Sojjwal Kelkar

Logging with Spring AOP

Feb 12, 2016 | 3 minutes Java

Aspect oriented programming (AOP) is a way of separating the business login in your code from cross cutting concerns. What is a cross cutting concern? Analogy time. A typical house … [Read more]

Memory profiling – simple examples

Feb 4, 2016 | 5 minutes Java

Recently I have been trying to learn different memory profiling tools to monitor Java applications. I have looked into the command line tools that are shipped as part of JDK like … [Read more]

JPA Entity Relationships

Jan 15, 2016 | 7 minutes Java Database

In a relational database, the relationships between two tables are defined by foreign keys. Typically, one table has a column that contains the primary key of another table’s row. … [Read more]

Introduction to jdb

Jan 11, 2016 | 4 minutes Java

jdb (Java Debugger) is a simple command-line debugger for Java classes that is provided as part of the JDK tools and utilities. jdb is based on a server-client model. While … [Read more]

It’s a grammatically error-prone life

Jan 1, 2016 | 1 minutes Cartoons

Plurals of regular nouns don’t need an apostrophe, people! [Read more]

Step by step guide to set up a service discovery environment

Dec 17, 2015 | 4 minutes Java Microservices

In a microservices environment we can run multiple instances of a service for resilience and scalability. In a cloud environment these instances can go up and down arbitrarily. So … [Read more]

How to set up a local spring cloud config server

Dec 15, 2015 | 4 minutes Java Microservices

From the official documentation, Spring Cloud Config provides server and client-side support for externalized configuration in a distributed system. With the Config Server you have … [Read more]

Building with Gradle

Oct 24, 2015 | 6 minutes Java

Gradle is a popular build tool to manage Java projects. Gradle’s build scripts are written in Groovy. The design of Gradle is aimed to be used as a language, not as a rigid … [Read more]

Tail Recursion

Aug 26, 2015 | 4 minutes Functional Programming

Tail recursion is one of those functional programming concepts that are likely to be unknown to someone coming from a Java background, like me. I encountered this term while … [Read more]

How unit testing leads to improved code

Aug 9, 2015 | 6 minutes Coding is fun Java

In Test Driven Development, the purpose of unit testing is to help us design our classes and not just to validate the correctness of our code. In this article I want to demonstrate … [Read more]