So it looks like our new HTML5 Canvas Refcard proved interesting to you, our excellent DZone readers. Our general HTML5 Refcard has received a lot of downloads too -- so we've decided to go all-out and publish a whole series of Refcardz on emerging web technologies. The massive tangle of new features, APIs, etc. that generally goes by 'HTML5' (whether...

Here at TheServerSide.com, we've obviously been giving some very decent coverage to the new features of Java 7, with a look at tackling some of the new Java 7 APIs like the new File I/O (NIO.2) and concurrency libraries with tutorials and learning guides. To compliment our tutorials on the new Java 7 features, we're kicking off a new set of online video tutorials demonstrating what Java 7 has to offer.

In this article we'll see how to integrate Google Guide with a Play Framework web application.

I recall a few jobs ago I was managing the Systems Engineering team and trying to grow it into a group that could handle the daily onslaught of issues that would plague our service. We had recruiters working on sourcing folks & we felt like we had very high standards for who we wanted to hire. We talked to and turned away probably hundreds of folks it felt like (I got really good at...

One of the features of the latest Solr version (3.5) is the ability to identify the language of the document during its indexation. In today's entry we will see how Apache Solr works together with Apache Tika to identify the language of the documents. At the beginning You should remember that the described functionality was introduced in Solr 3.5. Preview Text:  ...

Over on his blog, Jason Lee has a detailed post on the new POJOMapping feature in Jersey/GlassFish which offers strongly-typed client API's and illustrates this with a GlassFish Cluster administration sample.

POJOMapping Client/Server Example">

The post shows how to enable POJOMapping with a Jersey servlet initialization parameter and goes on to show the Cluster domain model. An archive with the entire sample is available there.

Right now, when I try to persist an object in Google App Engine, I’m facing the error “Java.lang.VerifyError: Expecting a stackmap frame at branch target“. I’m using JDK 7 and it seems like the problem lies with this JDK. After googling a bit, I found that there seems to be two solutions to fix this problem. Solution 1: Change to JDK 6 As simple as is, change your JDK to version 6 and you...

I was reading this article by Neil Mcallister on his Fatal Exception blog entitled "How to get developers to document their code". Now it begs the question: What documentation is actually useful? Well, like all things in general I don't think it's a simple answer, best I could say is; what works well in your context. Preview Text:  I...

One of the handy things about using Maven is that, by default, the names of the artifacts it creates include the current version number from the POM's version tag. It doesn’t matter what type of artifact it is, whether it’s a JAR, WAR or EAR you generally end up with something like this: Preview Text:  One of the handy things about using...

Over the course of the past few years, I’ve interacted with hundreds of people when talking about build tools and repository management. It continues to surprise me how many people don’t realize where these artifacts come from. When you run a build and these JARs just show up alongside all of their dependencies, it’s like magic to most people. If you know how it works, it’s very...

The last time AppFuse had an update done to its look and feel was in way back in 2006. I've done a lot of consulting since then, which has included a fair bit of page speed optimization, HTML5 development and integrating smarter CSS. It was way back in '05 when we first started looking at adding a CSS Framework to AppFuse. Preview Text:  ...

Recently, Oracle withdrew the ability for Linux distributions to repackage Java and distribute their own packages.  This has been widely regarded as a bad idea.  I tend to agree. So, let's re-roll an old sun-java6 deb file, with a new content to contain the latest 6u30 java release. You will need:    Preview Text:  Recently, Oracle...

Graylog2 is an open-source self-hosted centralized log management tool. Think of it as a do-it-yourself version of loggly.com, or perhaps a simpler alternative to Splunk. Logs are stored in a MongoDB database. I won’t go into too much detail, so if you want more info check out graylog2.org Preview Text:  I decided to see if RVM – Ruby Version...

Well, who’d have guessed it? After two long years, the new edition of Informer is finally out. Preview Text:  Read several articles by search experts like Charlie Hull and Tyler Tate. A great resource for enterprise search followers. Mitchell Pronsc...

It is easy to think that letting users change all aspects of an app UI makes the UI better. We've all heard the "if they don't like it they can change it" argument. It is also very easy to come up with theoretical scenarios where users would actually want to change any one aspects of the UI.  Preview Text:  It is easy to think...

The somewhat functional way of thinking involved with jOOX’s XML manipulation cries for an additional API enhancement simply supporting XSLT. XSL transformation has become quite a standard way of transforming large amounts of XML into other structures, where normal DOM manipulation (or jOOX manipulation) becomes too tedious. Let’s have a look at how things are done in standard Java ...

I’m excited about Sensu, a new open source monitoring framework, and I’d like to help others get started with it as well. So, after observing the frequent questions from new visitors to #sensu on Freenode I thought perhaps the best way to do that is to write a blog article to help folks get started. If you still have questions after reading this, feel free to come by #sensu on...

A short definition of an Android Parcel would be that of a message container for lightweight, high-performance Inter-process communication (IPC). On Android,  a "process" is a standard Linux one, and one process cannot normally access the memory of another process, so with Parcels, the Android system decomposes objects into primitives that can be marshaled/unmarshaled across process...

What is possible? Simple master/worker topology In its initial design, JPPF is a distributed parallel processing framework based on a master/worker architecture. A JPPF grid is made of 3 sorts of components that communicate with each other: clients which submit the work to the grid, nodes which execute the work, and servers which receive the work from clients and distribute it to the nodes in...

I don't like NullPointerExceptions. Actually I don't like the message of NullPointer Exceptions, i. e. "null". Such a message is usually not very helpful. I created a few rules for myself how to avoid certain exceptions and actually define pre- and post-conditions for methods. Let me please give you a few examples. In the beginning of a non-private method I usually check all method...