How to solve the Kaptcha error on Glassfish v31 in Linux
5 Mins read
I was trying to run one of my existing web application on recently released Glassfish v31 in Linux environment. This is an…
Auto Update Copyright Year : HTML JavaScript & More
4 Mins read
Automatic update of copyright year would be a real smart thing to do for any website since its such a trivial thing…
How to leverage Java BlockingQueue from java.util.concurrent
6 Mins read
Java’s concurrent package is very powerful and many people have not really utilized it to the fullest yet. I am trying to…
How To Deal With Different Browsers In Java - Playing With User-Agent
2 Mins read
Finding out what Browser type user is using is always required in web based application. Now when there are just too many…
How get instance of Past or Future date in Java
3 Mins read
Date manipulation is required in everyday Java programming. Creating a date instance for a past or future date is required at many…
How to do automatic start of GlassFish v2 Cluster Node Agents
2 Mins read
We are trying to run GlassFish V2 on Linux machine and every time we try to restart the node agents using asadmin…
How to deploy web app using asadmin command on GlassFish Enterprise Server
1 Mins read
I have always liked the command line deployment on any application server. Somehow, I still don’t trust the web based admin console…
How to Build fast/efficient cache in Java using SoftReference
3 Mins read
Building cache for a Java application is required many times. Writing an efficient cache can be really helpful for better application performance….
How to access private variables of Java Class - Hacking by reflection
1 Mins read
This example demonstrates how you can do object hacking in Java using the Reflection API. Hacking by reflection is possible through setAccessible()…
How to Add User Authentication on Tomcat
1 Mins read
I have seen many people writing their own Login utilities for web application, which is like re-inventing the wheel. Tomcat supports user…