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There is a list of 20 servlet interview questions. If you know any servlet interview question that has not been included here, kindly post your question in The Ask Question section. 1)How many objects of a servlet is created? 2)What is The life-cycle of a servlet?

JSF 2.0, CDI, Scala 2.8 using Eclipse, Maven and Tomcat Tools used: * JDK 1.6 * Maven 2.2.1 * Eclipse 3.5 * Eclipse Scala plugin (I am using nightly build - http://www.scala-lang.org/scala-eclipse-plugin-nightly) * m2eclipse plugin Download the source from here

Google provides a scalable application hosting environment called Google App Engine (GAE). One of the many benefits of GAE is that hosting small scale applications is 100% free. Google starts charging for hosting when your application resource requirements start to grow.

There is no migration system in vanilla grails (although possibly in Grails 2.0 …. ?) but There do exist several plugins that provide  some migration functionality. As of this post I am aware of three: dbMigrate, Liquibase, and Autobase. Of These, I prefer Liquibase and cannot recommend it enough. While it uses XML to describe its changesets it is a mature open-source Java project that works flawlessly (and has some excellent documentation). I did not have much luck using DbMigrate and Autobase when including in an existing project… which is a shame as Autobase (which is built on Liquibase) uses a nice DSL syntax to build The migrations.

"The Pencil Project's unique mission is to build a free and opensource tool for making diagrams and GUI prototyping that everyone can use. Top features: * Built-in stencils for diagraming and prototyping * Multi-page document with background page * Inter-page linkings! * On-screen text editing with rich-text supports * Exporting to HTML, PNG, Openoffice.org document, Word document and PDF. * Undo/redo supports * Installing user-defined stencils and templates * Standard drawing operations: aligning, z-ordering, scaling, rotating... * Cross-platforms * Adding external objects * Personal Collection * Clipart Browser * Object snapping * Sketchy Stencil * And much more..."

"Apache Lenya is an Open Source Java/XML Content Management System and comes with revision control, multi-site management, scheduling, search, WYSIWYG editors, and workflow. Please see some screenshots or try the Demo. "

"Support for mixed Scala/Java projects Thumb Support for mixed Scala/Java projects and any combination of Scala/Java project dependencies, allowing straightforward references from Scala to Java and vice versa. Editing Thumb A Scala editor with syntax highlighting, code completion, inferred type hovers, hyperlinking to definitions, error markers and more. Debugging Thumb Incremental compilation, application launching with integrated debugger, hyperlinking from stacktraces to Scala source, interactive console. Navigation Thumb Project and source navigation including Scala support in the Package explorer view with embedded outline, outline view, quick outline, open type, open type hierarchy."

This tutorial covers adding validations to forms during submission using Validator interface from Spring. This is part of the Spring MVC tutorial series.

"The agile dependency manager Apache Ivy™ is a popular dependency manager focusing on flexibility and simplicity. Find out more about its unique enterprise features, what people say about it, and how it can improve your build system!"

"sbt is a simple build tool for Scala projects that aims to do the basics well. It requires Java 1.5 or later. "

Reflective Ecore Model Diagram Editor is a GMF based Eclipse plugin which provides a graphical editor for any EMF model file, using only the meta-model such as .ecore and .xsd file. You don't need any .gmfgraph, .gmftool, .gmfmap, or .gmfgen files. This editor is, say a diagram version of Reflective Ecore Model Editor included in EMF.

A set of functions and predicates (as defined by Google Collections / Guava libraries) along with a set of utility methods to help navigating and editing Eclipse EMF models. EMFPath depends on Google Guava. Guava is available as OSGi bundles from the guava-bundle project.

This article explains how to develop RESTful web services in Java with the JAX-RS reference implementation Jersey. In this article Eclipse 3.5, Java 1.6, Tomcat 6.0 and JAX-RS 1.1. (Jersey 1.1.5) is used.

Scribe, the simple OAuth Java lib! Why use Scribe? Dead Simple Who said OAuth was difficult? Configuring scribe is so easy your grandma can do it! check it out:

This SDK provides an interface to the Yahoo! Messenger API (http://developer.yahoo.com/messenger/) and a sample GUI app both written in Java.

WindowBuilder Pro (also known as just WindowBuilder) is a powerful and easy to use bi-directional Java GUI designer. It is composed of SWT Designer, Swing Designer and GWT Designer and makes it very easy to create Java GUI applications without spending a lot of time writing code to display simple forms. With WindowBuilder Pro you can create complicated windows in minutes. Use the visual designer and Java code will be generated for you. You can easily add controls using drag-and-drop, add event handlers to your controls, change various properties of controls using a property editor, internationalize your app and much more.

"A Gradle plugin for the Eclipse IDE. "

Postgres-R is an extension to the relational database system Postgres providing efficient, fast and consistent database replication. Learn more about Postgres-R

" To run the Gogo you will need three bundles from Apache Felix downloads: Gogo Runtime Gogo Shell Gogo Command "

"RHQ (formerly Jopr), is an enterprise management solution for JBoss middleware projects and other application technologies. This pluggable project provides administration, monitoring, alerting, operational control and configuration in an enterprise setting with fine-grained security and an advanced extension model. Jopr is part of the multi-vendor RHQ management project. It provides support for monitoring base operating system information on six operating systems as well as mangement of Apache httpd, JBoss Application Server, Tomcat and other related projects."