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HTML Online Editor Sample I have been contemplating for a number of months about reviewing a cache of articles and videos on topics like Performance tuning, JVM, GC in Java, Mechanical Sympathy, etc... and finally took the time to do it - may be this was the point in my intellectual progress when was I required to do such a thing! Thanks to Attila-Mihaly for giving me the...
on Jan 17, 2014
Looking Forward to JavaOne Sunday: JUG Forums, NetBeans Day, GlassFish, Technical Keynotes, Duke's Choice Awards It used to be that Sunday was a fairly relaxing day for most. Not anymore! This year, Sunday is already overcrowded with many more events and sessions than one can possibly attend, as the JavaOne 2013 Content Catalog Sunday entries demonstrate. Sunday's activity can be divided into...
on Sep 22, 2013
My company uses a large number of software applications to support all aspects of its business. These software applications are either "bought" or "built". The portions of the company that cannot be supported by purchased software are supported by custom developed, in-house, applications. A variety of technologies are used to create and build these custom applications. The Java framework has been...
on Sep 15, 2013
Spring is an open source framework whose goals is facilitate the Java developer's life, it began with dependency injection and nowadays works on many plug-ins. Plug-ins such Spring Social, to connects social media like twitter and facebbok, Spring security beyond control inversion. The goal of this post is talk about Spring Data working with Cassandra. Spring Data does part of Spring plug-in,...
on Aug 25, 2013
Cassandra is an open source column oriented nosql database. It was born to solve problems with persistence and high performance. Cassandra has been used by many companies in many industries for a wide variety of use cases. In addition it has a strong and thriving community supporting it. We will be having a special series of events throughout Brazil in the first week of September. Each day...
on Aug 21, 2013


Every once in a while I run into someone that has a JVM that is running back to back collections and yet the heap is still almost full after each attempt! When they discover that their problem is related to the JVM not having enough memory they often ask the question, why didn't the JVM throw an OutOfMemoryError? After all my application is not making any forward progress and the reason is Java...
on Jan 8, 2014


One day I found myself in the situation that I had to write a unit test which checks whether my code is annotated in a particular way. I wondered how one could do that without doing an integration test that actually processes that annotations. My first idea was to use the Reflection API, which in fact worked, but was not looking smart. In fact, I wanted to have a Hamcrest matcher instead, since...
on Dec 27, 2013


Just recently I was engaged to assist with an application that wasn
on Dec 11, 2013


The data warehouse is essential to enterprise business intelligence, which accounts for a great part of the total enterprise cost. With the global data explosion in recent years, the business data volume grow significantly, posing a serious challenge for enterprise data warehouse to meet the diverse and complex business demands. More data, more data warehouse applications, more concurrent...
on Dec 11, 2013
In Java, implementing via SQL is a well-developed practice for database computation. However, the structured data is not only stored in the database, but also in the text, Excel, and XML files. Considering this, how to compute appropriately regarding the structured data from non-database files? This article raises 3 solutions for your reference: implement via Java API, convert to database...
on Aug 29, 2013
According to research, most complex report development work can be simplified by performing the data source computation in advance. For example, find out the clients who bought all products in the given list, and then present the details of these clients. In developing such reports, it is the
on Aug 20, 2013


Tired of JavaFX Scene Builder being run in a separate process? Fed up with no real integration between your favorite IDE and JavaFX Scene Builder? There may be a solution heading towards you. Follow this small series of blog entries to join me on my journey towards an embedded JavaFX Scene Builder in NetBeans. Finally, with the new developer preview builds of JavaFX Scene Builder 2.0 a new...
on Dec 1, 2013


If the results of the just-completed poll are at all representative of the broader Java/JVM community (our polls are not scientific, of course), the indication is that Java/JVM developers like staying pretty much up to date when it comes to their IDE. A total of 159 votes were cast in the poll, which ran for two weeks. The exact question and results were: How frequently do you...
on Nov 29, 2013


This is the Voice of Ground Control! NASA Ground Systems and Java Technology I am Sean Phillips and have been a software engineer for a while now.  For the last few years I've been lucky enough to be a lead developer for some NASA Ground System software that has been deployed directly into the Mission Operations Control room.  (Hence the righteous reference in the title of this blog)...
on Nov 8, 2013


According to research, most complex report development work can be simplified by performing the data source computation in advance. For example, find out the clients who bought all products in the given list, and then present the details of these clients. In developing such reports, it is the
on Sep 11, 2013


The Joy of Clojure, Second Edition by Michael Fogus and Chris Houser has 4 new chapters! Save 45% with Promo code mlfogus2jn at What's new? The authors have released the following chapters:
on Sep 3, 2013
Save 45% on The Programmer's Guide to Apache Thrift with Promo code mlthriftjn2 at The Programmer's Guide to Apache Thrift by Randy Abernethy has been updated! What's new?
on Aug 28, 2013
"Using State in Actors" is new to Akka in Action + 45% off Akka in Action is written by Raymond Roestenburg, Rob Bakker, and Rob Williams Save 45% on Akka in Actionwith promo code mlakkajn at In chapter 7, you learned about two possible ways to keep state in an Actor by using class attributes and the become/unbecome functionality. Chapter 10 talks about two more solutions that you...
on Aug 27, 2013
Grails in Action, Second Edition MEAP Update + 44% off Save 44% on Grails in Action, Second Edition with Promotional code mlgsmith2jn at What
on Aug 20, 2013