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ActiveMQ: Understanding Memory Usage

As indicated by some recent mailing list emails and a lot of info returned from Google, ActiveMQ’s SystemUsage and particularly the MemoryUsage functionality has left some people ...
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Session Timeout Handling on JSF AJAX request

Session Timeout Handling on JSF AJAX request When we develop JSF application with AJAX behaviour, we may experience the problem in handling timeout scenario of Ajax request. For example, ...
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A very light Groovy based web application project template

A very light Groovy based web application project template You might have heard of the project Grails is a Groovy version of Ruby on Rails like framework that let you create web application ...
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What is a PermGen leak?

What follows is a practical introduction to a specific type of memory problems in Java applications. Namely – we will analyze the errors that cause the java.lang.OutOfMemoryError: ...
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Git: Committing vs Pushing vs Stashing – OR: “what to do if I just want to work locally”

Many people ask me for advice when they’re trying to modify some code locally without the changes finding their way into the remote repository or – gods forbid – the production. ...
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Recycle Bin in Database

Oracle introduced in database 10g new feature called ‘Recycle Bin’ to store the dropped database objects. If any table is dropped then any associated object to this table ...
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ADT Bundle – Just a single step to setup android development environment

I got many queries from college students and engineers regarding installation and setup of Android development environment, so for them here is good news. Before this post i was used ...
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Google Guava EventBus and Java 7 WatchService for Event Programming

This post is going to cover using the Guava EventBus to publish changes to a directory or sub-directories detected by the Java 7 WatchService. The Guava EventBus is a great way to add ...
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Using Cryptography in Java Applications

This post describes how to use the Java Cryptography Architecture (JCA) that allows you to use cryptographic services in your applications. Java Cryptography Architecture Services The ...
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Google Guava MultiMaps

Guava? This is the first in a series of posts where I’ll be attempting to explain and explore Google’s awesome Guava java library. I first came across Guava whilst searching ...
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