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Difference between getPath(), getCanonicalPath() and getAbsolutePath() of File in Java

The File API is very important one in Java, since it gives access of File system to Java programs. Though Java’s file API is rich, there are lot of subtleties to know when you ...
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ADF: Popup, Dialog and Input Components

In this post I would like to focus on a very common use case when we have af:popup containing af:dialog with input components inside. There are a couple of pitfalls that we need to ...
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Java’s Volatile Modifier

A while ago I wrote a Java servlet Filter that loads configuration in its init function (based on a parameter from web.xml). The filter’s configuration is cached in a private field. ...
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Default Methods: Java 8’s Unsung Heros

A few weeks ago I wrote a blog saying that developers learn new languages because they’re cool. I still stand by this assertion because the thing about Java 8 is it’s really ...
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Validation in java (javafx)

Validation is one thing that’s missing from the core javafx framework. To fill in this gap there is already a 3rd party validation library that’s present in controlsfx. However ...
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Using IntelliJ bookmarks

This is a quick post about IntelliJ’s nice bookmark feature. IntelliJ gives you the option to bookmark single lines of code. After a line has been bookmarked, you can use various ...
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A beginner’s guide to JPA/Hibernate flush strategies

Introduction In my previous post I introduced the entity state transitions Object-relational mapping paradigm. All managed entity state transitions are translated to associated database ...
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Introducing Hadoop Development Tools

Few days back Apache Hadoop Development Tools a.k.a. HDT was released.  The projects aims at bringing plugins in eclipse to simplify development on Hadoop platform. This blog aims ...
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Getting A List of Available Cryptographic Algorithms

How do you learn what cryptographic algorithms are available to you? The Java spec names several required ciphers, digests, etc., but a provider often offers more than that. Fortunately ...
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A new proximity query for Lucene, using automatons

The simplest Apache Lucene query, TermQuery, matches any document that contains the specified term, regardless of where the term occurs inside each document. Using BooleanQuery you ...
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