Lucene: Asynchronous Index Writer for faster writing
4 Mins read
I was trying to do some Index writing speed improvement and thought of creating a asynchronous Lucene index writer. This writer provides…
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()…
Effective Obfuscation: Techniques to empower Java code safety
2 Mins read
Why do you need Obfuscation ? Do you lock your home door every night? You may know that a locked door will…
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…
Securing your code: Techniques Beyond Java Obfuscation
3 Mins read
Reverse engineering Java classes is very easy and Obfuscation also can not stop anyone from reverse engineering your proprietary class. but it…
Sorting performance Arrays.sort() vs Collections.sort()
1 Mins read
Many developer are concerned about the performance difference between java.util.Array.sort() java.util.Collections.sort() methods. Which one is faster? Which one to use and when?…
Hacking By Reflection: Creating Multiple instance of a Singleton class
1 Mins read
Singleton.java implements a thread safe singleton instance creation for this class. Even if multiple threads are accessing this should create only one…
Hacking Java class: Calling private Constructor of Java class outside the class
1 Mins read
Here is a sample code by which you can hack and call the private constructor of a class using reflection. public class…
Struts 2 - AJAX Drop down Example
2 Mins read
Struts2 AJAX Drop down Example, struts2 ajax auto populate drop down, struts2 ajax auto select drop down, Struts2 AJAX Example, Struts2 AJAX…
About Me
1 Mins read
Welcome to FromDev.com, I am Sachin, a Electronics graduate, Web Developer & Linux user, who likes to share software knowledge with world….