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Analyzing and understanding the memory use of an application is challenging. A subtle logic error can result in listeners never being disposed, ultimately leading to the dreaded OutOfMemory error. Even if your application is properly disposing of all unused objects, it may still be requiring 10 or 100 times more memory than necessary. Lucky for us, the Eclipse Memory Analyzer (MAT) can help provid

Learning to write code efficiently is only one step towards becoming a coding master. Another step is learning to debug. When it comes to legacy or 3rd party code you will need to debug in order to understand how the code behaves. In this post I will give you some basic tips on how to master your debugger and become more efficient. This is a follow up to My Top 10 Tips on how to be more productive

Mobile AppsDevelop powerful native Mobile Apps for iOS and Android – with a single code base. Get the full power of native widgets – no webview / HTML involved. Tabris.js for Mobile Apps in JavaScriptTabris.js is a mobile framework that lets you develop native UIs on iOS, Android and Windows from a single code base in JavaScript. No special setup necessary – you can build for iOS without a Mac – a

Besides all the Java code in the RAP project, we also have more than 250 JavaScript files which total up to 75k lines of code. For such an amount of code, you should have some kind of code analysis that detects common coding problems like unintentional global variables. We use the JSEclipse plug-in for JavaScript editing which detects some, but not many JavaScript problems. A while ago, we tried t

As promised in the first part of the “Effective Mockito” blog series, I will concentrate on Mockito specifics in the followup posts. So, the main topic for Part 2 is Mockito’s @Mock Annotation. When I write tests I try to follow an explicit pattern, called the build-operate-check pattern. This was described by Uncle Bob in his book “Clean Code” (Page 127, Chapter 9). The main idea behind this patt

Last week I talked to a fellow developer, Frank Appel, about Mockito. We’ve been using this mocking library for over a year. We both agreed that of all the innovations we’ve tried in the last year or so, Mockito has boosted our coding productivity the most. With this blog series we want to share our experiences with Mockito. You see that I used the word “effective” in the title, and, in this conte

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This is a tale of three images. I found these images while investigating the internals of several different applications. There are some really neat software projects emerging at the moment, and as a developer I always find it interesting to take a look at the implementation details, because there is often a lot to be learned. It’s not always something you might need right now, but maybe a few yea

Today is the big day! Eclipse 3.5 – Galileo – is available for the general public. To count down the final push towards Galileo, I have been reviewing the Top 10 features that I’m most excited about. There are tons of other great features – such as the SWT port to Cocoa – that I personally don’t make use of, so if you disagree with my Top 10 list, I encourage you to publish your own. A quick recap