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Top 10 Very Very VERY Important Topics to Discuss

Some things are just very very very VERY very important. Such as John Cleese. The same is true for Whitespace:                 Yes. 1080 Reddit Karma points (so urgently needed!) in only 23 hours. That’s several orders of magnitudes better than any of our – what we wrongfully thought to be – very deep ...

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Code is NOT poetry, it is just code

One can read in the footer of WordPress.org: Code is Poetry. This is quite a bold statement and whoever believes in that slogan, he would be made to think that some kind of extraordinary portion of code must reside in the WordPress repositories. I took the time to look at a random “quote” of the WordPress poem, i.e. a single ...

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Testing code for excessively large inputs

When writing unit tests we mostly focus on business correctness. We do our best to exercise happy path and all edge cases. We sometimes microbenchmark and measure throughput. But one aspect that is often missed is how our code behaves when the input is excessively large? We test how we handle normal input files, malformed files, empty files, missing files… ...

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My Exprience using ElasticSearch NodeJS and ExpressJS

General requirement Part of a system I am currently working on is manipulating raw data. The data being sent from multiple client devices (Android/Iphone devices, etc..) ~ 100,000 requests per day. The raw data needs to be collected and ready for later use. It gotta be searchable and aggregated for calculations. I had little experience with Solr but this time ...

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AWS Speed Test: What are the Fastest EC2 and S3 Regions?

How do different AWS regions compare to one another? A benchmark of transferring data from EC2 instances to S3 buckets Many developers choose to host their data and code in the Amazon Web Services cloud, but when it comes to choosing a region it’s not that clear how to choose between the different options. To help shed some light on this, ...

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Using Oracle AQ in Java Won’t Get Any Easier Than This

As recently announced in our newsletter, the upcoming jOOQ 3.5 will include an awesome new feature for those of you using the Oracle database: Native support for Oracle AQ! And your client code will be so easy to write, you’ll be putting those AQs all over your database immediately. How does it work? jOOQ rationale The biggest reason why many ...

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How to Load Resources from Classpath in Java with Example

Classpath in Java is not only used to load .class files, but also can be used to load resources e.g. properties file, images, icons, thumbnails, or any binary content. Java provides API to read these resources as InputStream or URL. Suppose, you have a properties file inside config folder of your project, and you want to load that properties file, ...

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Introducing the JBoss BPM Suite installer

This week we want to introduce you to the rather unknown installer component that is delivered with the JBoss BRMS and JBoss BPM Suite products. Note that all the current demo projects have been requiring you to download the JBoss BPM Suite deployable eap zip product file and JBoss EAP 6.1.1 zip product file. Moving forward we will migrate all ...

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Adding Custom Claims to the SAML Response – (How to Write a Custom Claim Handler for WSO2 Identity Server)

java-interview-questions-answers

Overview The latest release of WSO2 Identity Server (version 5.0.0), is armed with an “application authentication framework” which provides lot of flexibility in authenticating users from various service providers who are using heterogeneous protocols. It has several extension points, which can be used to cater several customized requirements commonly found in enterprise systems. With this post, I am going to ...

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