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Last weekend while pondering the question "Is Scala ready for the enterprise?" I decided to write a simple Java EE 6 app entirely in Scala, without using any Java. I had three main reasons for doing this: one was just to see how easy/difficult it would be to write everything in Scala (it was easy).  Another was to document the process for others journeying down the same road (the entire project is on github).  Finally, I wanted to identify advantages of using Scala instead of Java that are specific to Java EE apps (I found several). Background The specific app I created was an adaptation of the Books example from Chapter 10 of Beginning Java™ EE 6 Platform with GlassFish™ 3. It's a simple web app that displays a list of books in a database and lets you add new books. Although it's a pretty trivial app, it does touch on several important Java EE 6 technologies: JPA 2.0, EJB 3.1 and JSF 2.0.

JDBC 4.0 Enhancements in Java SE 6 Java Platform, Standard Edition (Java SE) version 6 (code name Mustang), is currently in its second beta release and is scheduled to be delivered in October of this year. Java SE 6 includes several enhancements to the Java Database Connectivity (JDBC) API. These enhancements will be released as JDBC version 4.0. The main objectives of the new JDBC features are to provide a simpler design and better developer experience. This article provides an overview of the JDBC 4.0 enhancements and what benefits they offer to enterprise Java developers. We will explore the new JDBC features with the help of a sample loan processing application using Apache Derby as the back-end database.

"Solve 'svn : Working copy is too old (format 10, created by Subversion 1.6)'"

" This tutorial explains Eclipse JFace Data Binding which can be used to synchronize data between a data model and an user interface. The tutorial uses the properties API which is the recommended way of doing data binding. This tutorial is based on Eclipse 3.6 (Helios) and Java 1.6. "

Nimbus, a cross platform look and feel introduced in the Java SE 6 update 10 release, is drawn with 2D vector graphics and can be rendered at any resolution.

There is given many features of java. They are also called java buzzwords. 1.Simple 2.Object-oriented 3.Platform independent 4.Secured 5.Robust 6.Architecture neutral 7.Portable 8.Dynamic 9.Interpreted 10.High Performance 11.Multithreaded 12.Distributed Simple Java is simple in the sense that: syntax is based on C++ (so easier for programmers to learn it after C++).

There is given many features of java. They are also called java buzzwords. 1.Simple 2.Object-oriented 3.Platform independent 4.Secured 5.Robust 6.Architecture neutral 7.Portable 8.Dynamic 9.Interpreted 10.High Performance 11.Multithreaded 12.Distributed Simple Java is simple in the sense that: syntax is based on C++ (so easier for programmers to learn it after C++).

"concisely express solutions in an elegant,[6] type-safe and lightweight (low ceremonial) manner"

"Stop using Tomcat and wondering why JEE "doesn't work." You're doing yourself a big disservice. Start thinking about JBoss AS 6, or GlassFish v3 - Yes, I know, it's a "Full JEE Container," - it's "Heavy," but with JEE6, that's not a bad thing: It all "Just works" and it works really well. Trust me, the reason people have thought Java EE sucks, is because they try to do this stuff on Tomcat, and say "Why doesn't (JPA, JMS, JTA, EJB, JSF, CDI) work?" Well… that's because Tomcat only gives you Servlet - the Request/Response lifecycle. So people install all these things manually, or try to, and then say, "Wow, Java EE is really hard to use, shit, I'm gonna use Spring or Grails instead.""

Package java.util.concurrent.atomic Description A small toolkit of classes that support lock-free thread-safe programming on single variables. In essence, the classes in this package extend the notion of volatile values, fields, and array elements to those that also provide an atomic conditional update operation of the form: boolean compareAndSet(expectedValue, updateValue);

Does it all make sense now? Do you know how to solve every problem? Probably not, but when it comes right down to it, using Java EE can be even simpler than using Spring, and take much less time. You just have to find the right guides and the right documentation (which is admittedly a severe sore-spot of Java EE; the documentation is still a work in progress, but is getting much better, save blogs like this one.) You have to turn to a vendor like JBoss, or IBM in order to get the use-case driven documentation you need, and they do have documentation, it's just a matter of finding it. Seam 3 in particular strives to give extensive user-documentation, hopefully making things much simpler to adopt, and easier to extend. The main purpose of this article was not to bash Spring, although I may have taken that tone on occasion just for contrast and a little bit of fun. Both Spring and Java EE are strongly engineered and have strong foundations in practical use, but if you want a clean programming experience right out of the box - use Java EE 6 on JBoss Application Server 6 - JBoss Tools - and Eclipse. I will say, though, that the feeling I've gotten from the Spring forums vs the Java EE forums, is that there are far many more people willing to help you work through Java EE issues, and more available developers of the frameworks themselves to actually help you than there are on the Spring side. The community for Java EE is much larger, and much more supportive (from my personal experience.) In the end, I did get my application migrated successfully, and despite these issues (from which I learned a great deal,) I am still happy with Java EE, and would not go back to Spring! But I do look forward to further enhancements from the JBoss Seam project, which continue to make developing for Java EE simpler and more fun. Don't believe me? Try it out. Find something wrong? Tell me. Want more? Let me know what you want to hear.

Icefaces is an open source Ajax framework for developing RIA for the web. The applications are structured the same way as JSF applications, but with added Ajax features. In this article there will be a short description of the biggest differences between the IT Mill Toolkit 5.2.0 and Icefaces 1.6.2 based development of RIAs.

Janino is a super-small, super-fast Java™ compiler. Not only can it compile a set of source files to a set of class files like the JAVAC tool, but also can it compile a Java™ expression, block, class body or source file in memory, load the bytecode and execute it directly in the same JVM. Janino is not intended to be a development tool, but an embedded compiler for run-time compilation purposes, e.g. expression evaluators or "server pages" engines like JSP. JANINO is integrated with Apache Commons JCI ("Java Compiler Interface") and JBoss Rules / Drools. JANINO can also be used for static code analysis or code manipulation. JANINO can be configured to use the javax.tools.JavaCompiler API (available since JDK 1.6), which removes the Java 5-related limitations.

Weld is the reference implementation (RI) for JSR-299: Java Contexts and Dependency Injection for the Java EE platform (CDI). CDI is the Java standard for dependency injection and contextual lifecycle management, led by Gavin King for Red Hat, Inc. and is a Java Community Process (JCP) specification that integrates cleanly with the Java EE platform. Any Java EE 6-compliant application server provides support for JSR-299 (even the web profile). Weld and the JSR-299 TCK (Technology Compatibility Kit) are developed here at seamframework.org. Both are licensed under the Apache License, Version 2.0.

"So, we are going to look at a restful webservice that is going to generate XML. As you might know, we have the perfect JSR specification for that in the form of JAXB. The needed libraries are already available in Netbeans 6.8. And as you might have guessed, returning JAXB objects from a JAX-RS method is going to integrate naturally and take some strain from our shoulders. No need to marshal and unmarshal by ourself. "

This is an excellent link I find related to Unix find command and how to use find command in unix , I have bookmarked it and using it frequently , It has really improved my productivity over couple of days , I am loving it:)my favorite unix find command example from this blog post is :6) How to find all text file which contains word Exception|,ERROR,Error} using find command in Linux ?

When creating a REST api with Java EE 6 and JAX-RS there comes the time when you start thinking about security. In our case we were trying to set up HTTP Basic Auth for the REST api to identify users and keep them from deleting other peoples stuff. It took me a while to understand the different aspects of configuring HTTP Basic Auth when using GlassFish: