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fail-safe vs fail-fast Iterator in Java
Difference between fail-safe and fail-fast Iterator is becoming favorite core java interview questions day by day, reasonit touches concurrency a bit and interviewee can go deep on it to ask how fail-safe or fail-fast behavior is implemented.In this article article we will see what is fail-safe and fail fast iterators in java and differences...
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Deque examples with tutorials in java
deque in java:- Deque is abbrevateted as double ended queue like a normal queue, can store the collection of objects. It is one of the collections class introduced in java 6. Why deque is different from other collection classes? the answer is, in deque, we can inserts and deletes the objects from the both start, end of the the collection. where...
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JIRA Development Cookbook — A book by Jobin Kuruvilla
Jobin Kuruvilla, an experienced JIRA consultant and plugin developer, set out on the ambitious task to write a detailed and thorough book about JIRA plugin development. The result? A well crafted 450+ page book that starts by introducing the reader to Atlassian’s plugin framework and ends with useful recipes usually gained only by weathered...
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Java NumberFormat tutorials: 3 Examples of NumberFormat in java
Basic Usage of NumberFormat in java:- When we are developing any applications targeted to different countries, the presentation of the data shoulld be specific to each country eventhough data storage is always same. This is tedious task for java programmers to handle of formating the same data to specific country. java introduced Globallization...
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Filters don't fire when bouncing off web.xml for error handling
Here’s a nice little gotcha for ya! A fairly common pattern is to use a filter that wraps the (Http)ServletRequest and (Http)ServletResponse in an app-specific wrapper; this can be used to hold user credentials and state etc. In essence it is: where and AppResponse similarly subclasses from HttpServletResponseWrapper. But let’s now...
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Udi & Greg Reach CQRS Agreement
Hard to believe, isn’t it? Although both myself and Greg have been saying (quite publicly) for a long time now that we’re in agreement in about 99% of the DDD/CQRS content we talk about, it turns out the terminology we use has made it very difficult for everybody else to see that. Anyway, on a recent call [...]
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Running cucumber on jruby under ant
I’ve just spent more time than I expected getting this to work. It seemed like it would be easy, since running cucumber from the command line is so easy. But ant is very helpful in sanitizing the environment for subprocesses–a little too helpful, perhaps. After chasing a number of dead ends and increasingly complicated detours, [...]
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Embedded Jetty, Vaadin and Weld
When I develop web applications I like to be able to quickly start them from Eclipse without having to rely on all kinds of heavy-weight tomcat or glassfish plugins. So what I often do is just create...
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Individual Performance in Scrum
Should you track individual performances in Scrum and how do you do it? Nanda Vivek says that there is only one answer and this is “No”. Measuring individual productivity is against the spirit of Scrum and the article discusses the importance of being helpful and collaborative in teams. The author however does not give guideline on...
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Problems with ORMs Part 2 – Queries
In my previous post on Object-Relational Mapping tools (ORMs), I discussed various issues that I’ve faced dealing with the common ORMs out there today, including Hibernate. This included issues...
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