Every once in a while we run into someone that has a Hotspot JVM that is running back to back garbage 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 (OOME)?" After all my application is not making any forward...
This blog post tells you about an interesting and free conference in 2014 in Turkey on Android and Mobile developments
Let's go inside the Cassandra nodetool utility and discover how we can extend it.
Recently, there has been much discussion about the need to server gems in a private network. This need arose not only from the security problems experienced by RubyGems.org but also due to the fact that some gems aren’t hosted on RubyGems.org such as Vagrant, which no longer supports RubyGems or gems that are not open source or not public and that may nevertheless be shared as gems rather than...
With 2013 done and dusted, one clear winner for the biggest mover out of all the programming languages on the TIOBE index has emerged.
We recently ran into a memory leak caused by the Oracle JDBC Driver Implementation. Oracle fixed the issue based on our input data. In case you are experiencing memory problems leading to crashes have a look at this blog. In case you see similar symptoms its better to install the latest patches instead of adding more memory to avoid Out of Memory crashes.
Enforcing data integrity ensures the quality of the data in the system, and contributes to have bug free applications. Two important steps in checking the data integrity are to identify valid values for a type and to decide how to enforce its data integrity.
In this article we take a look at How improve testing by looking at how to use Jemmy with JUnit in NetBeans
Have you ever wondered how big is the overhead posed by ArrayList, HashMap or any other java.util.Collections API used within your application? We have now finalized a thorough research in the field and can publish conclusions based on more than 500 different applications.
A question that many developers often ask is, “Can I make it run faster?” But what are you looking at to make it faster? The code? The network? Alan explores what you need to tune answer the question: what is Hadoop's Network Performance?
Kairi Kangro has written "On Java Collection Waste," an article in which he examines the wasted heap associated with the standard Java collections library. Short form: they work pretty well.
Spring Mobile Hello World Example that includes DeviceResolver, SitePreference, urlPath SiteSwitcher and LiteDeviceDelegatingViewResolver
Spring Mobile is an extension to Spring MVC for development of mobile web applications. The Spring Mobile Device module provides a feature (DeviceResolver / LiteDeviceResolver) to detect devices like mobile and tablet in the server side. Device aware view management is very useful specially when it is required to serve different optimized versions of same website based on request generating...
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- Transitioning to Java 8 (03 Oct 2014) At JavaOne, the vice president of Java development at Oracle opened up about Java 8 trends and...
- Overcoming barriers to Java application performance (02 Oct 2014) Developers and architects at JavaOne 2014 discussed how to improve Java application performance.
- Understanding the new Nashorn (01 Oct 2014) At JavaOne 2014, discussion turned to the creation and upgrades of the compiler engine called...
- Goetz hangs his hat on lambda parallelism and performance (30 Sep 2014) When it comes to improving Java, few changes have been as eagerly anticipated as lambdas. From...
- Bitnami: How a pet project evolved into cloud hosting and server management (24 Sep 2015) It's amazing how what was once a pet project that provided simple installers to fellow developers...
- Will Java EE 8 adoption outpace previous releases? (17 Oct 2014) At JavaOne 2014, Barry Burd discussed how and why he's predicting a fast adoption of Java EE 8.
- Startup promises native Java across mobile platforms (03 Oct 2014) Learn how startup company Codename One is promising native Java across mobile platforms.
- The highlights of Java EE 8 (30 Sep 2014) At JavaOne 2014, the latest features and upgrades of Java EE 8 were highlighted.
Tell us what you think of the new site. Meet the Editors.