JavaBeat

If you are getting the following error while running the JSP 2.0 in Tomcat server. It means the application is missing JSTL jar file. If you add standard.jar and jstl.jar the problem will be solved. 1 2 3 4 5 6 7 java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config com.sun.faces.application.view.JspViewHandlingStrategy.executePageToBuildView(JspViewHandlingStrategy.java:286) com.sun.faces.application.view.JspViewHandlingStrategy.buildView(JspViewHandlingStrategy.java:123) com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106) com.sun.faces.lifecycle.Phase.doPhase(Phase.java:103) com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) javax.faces.webapp.FacesServlet.service(FacesServlet.java:311) emailprint

Introduction Hibernate is designed to be used with a large set of databases. The details of those databases are configured in an XML file called hibernate.cfg.xml. This configuration files could be given any name and is usually placed in the root of your application class path. There are many configuration parameters available that makes the [...]

Ext GWT 2.0Ext GWT 2.0: Beginner’s Guide is a practical book that teaches you how to use the Ext GWT library to its full potential. It provides a thorough, no-nonsense explanation of the Ext GWT library, what it offers, and how to use it through practical examples. This book provides clear, step-by-step instructions for getting [...]

Spring Tag Library Spring MVC provides a JSP tag library (Spring Form) for making it easier to bind form elements to Model data. Spring Framework also provides you with some tags for evaluating errors, setting themes and outputting internationalized messages. Spring Framework Articles Buy Spring Framework Books from Java Books Store Introduction to Spring MVC [...]

Introduction In this article, we will explore the capabilities of Ruby with respect to the Data Tier. One can understand the power of Ruby which greatly simplifies the development of data aware applications after reading this article. This is mainly because of the abstraction introduced in Ruby in the form of Active Record. Active Record [...]

An immutable object is something whose state can’t be change after there creation, e.g. String objects. Once you have created a String object, you can’t alter this. Creating an Immutable object’s class Creating an immutable object’s class can be tricky. Minimal requirement to create an immutable object’s class is, make class and every member variable, [...]

I believe everyone starts (and even continues to do so) implementing Singleton pattern in following fashion: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 package com.singleton;   public class SimpleSingleton { private static SimpleSingleton simpleSingleton;   private SimpleSingleton() { };   public static SimpleSingleton getInstance() { if (simpleSingleton == [...]

Introduction Consider a scenario where you can’t run the application in your development environment, e.g. say your application can run only on a server machine (because it is dependent on some third party interface that are not accessible in your development machine) and you have to resolve a problem (bug). What you can do? The [...]