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IntelliJ IDEA Tip: Configuration Profiles

How many plugins do you have installed in your IntelliJIDEA instance? How many of the plugins are actually active? Do you need all the plugins to be active at once? Thins might be a quite realistic scenario that you have a fairly large number of plugins activated but you need only a some of them to be active while working ...

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Are Static Imports Becoming Increasingly Accepted in Java?

There was a time when the use of the word ain’t was widely considered unacceptable, at least in polite society. Indeed, at that time (and perhaps still today), many people did (and do) not consider ain’t to be a real word. Although the word ain’t remains controversial and its usage is still often considered improper, it seems to be slowly ...

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Quartz scheduler misfire instructions explained

Sometimes Quartz is not capable of running your job at the time when you desired. There are three reasons for that: all worker threads were busy running other jobs (probably with higher priority) the scheduler itself was down the job was scheduled with start time in the past (probably a coding error) You can increase the number of worker threads ...

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The Java EE 6 Example – Galleria Part 2

You probably followed me with the last Java EE 6 Galleria example posts. The first one was the basic introduction. The second one was about running it on latest GlassFish. Someone of the RedHat guys mentioned, that we should look into bringing this example off from GlassFish. Great ;) Thanks for the nice idea. That is exactly what we are ...

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Serious about your software career? Leave your job

I recently resigned my position as senior software engineer and technical lead for a middleware services group at Wells Fargo. The job was great: work from home, great immediate manager, respected among the team members, trusted to explore new technologies when justified, boss stood up for us and got us the tools, training, and working environments we needed, etc, etc. ...

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Drools Guvnor – Manage access

Externalize business or technical rules is very important for scalable applications but the BRMS service access should be managed. guvnor provides control UI access and operations using role based authorizations. There are several permissions types as listed in drools-guvnor reference manual. Admin with all permissions. Analyst or Analyst read-only: analyst permissions for a specific category. Package admin, Package developer or ...

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Taking over the Codebase, Solving the Spaghetti Crisis

We’ve all been there. Somebody asks if you can take a look at their website that has been stagnant for a while. Something small needs to be changed. You feel up for a challenge, so you dive in. What you find is a mess. It’s really nobody’s fault. Things evolved over time, different developers and designers have done their thing ...

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Using slf4j with logback tutorial

In current post I am going to show you how to configure your application to use slf4j and logback as logger solution. The Simple Logging Facade For Java (slf4j) is a simple facade for various logging frameworks, like JDK logging (java.util.logging), log4j, or logback. Even it contains a binding tat will delegate all logger operations to another well known logging ...

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Using Delayed queues in practice

Often there are use cases when you have some kind of work or job queue and there is a need not to handle each work item or job immediately but with some delay. For example, if user clicks a button which triggers some work to be done, and one second later user realizes he / she was mistaken and job ...

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