Java applications get considerable support from JVM in managing the runtime performance of applications. First and most differentiating thing in Java, as compared to other languages, is garbage collection (GC). Developer of an application does not need to worry about the memory clean up in general, leaving the developer to focus on functional part of the application mainly. In addition to the default features, there are many configurable parameters which can be used to tune the JVM to make the application perform better. These parameters are also dependent on the …

Java 5 has introduced many new features to take this platform to a new level with 15 component JSRs and around 100 other updates. These changes definitely bring considerable shift in usage of this technology. Java intends to address following important concerns through this ‘Tiger’ release.

Ease of Development
Scalability and Performance
Monitoring and Manageability
Desktop Client Development

These modifications span in most of the areas of Java, but if these are grouped logically, then there can be following important categories to study. This tutorial aims to explain these features in …

You must have played a lot with Google Earth to find your home or your other favorite places. Also, you must have amended it with the place details you know. Google Earth is an example of collaborative internet application, where all of us contribute to enrich it with information. But there is another bigger aspect to be addressed with respect to such collaborative information. This might be applicable to wiki pages also where you keep on updating information. This aspect is of confidentiality of information. When you publish information on …

Garbage collection, something not to worry, sometime to worry a lot. A novice Java developer starts writing first code without worrying a bit about memory utilized by the program. There is always this, I would say wrong notion, that garbage collector is there to clean up any memory consumed. But when the application runs out of memory, then the developer starts cursing Java for in-efficient memory management. Is Java the culprit? Or it is the memory consumption by the program is problem. In this article we identify ten important points, …

As of now, we know hibernate as object relation mapping (ORM) open source framework. A framework, that eases our life in interaction with database, it not only supports many databases, but also provides a robust framework for connections and other complex data operations.  It supports persistent data store interactions in both Java and .NET technologies in object oriented way.
As J2EE moved to JEE 5, it introduced ORM into it’s technology specification through Java Persistent API (JPA). This means, we have a specification that defines the rules of object relation mapping …