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Core Java
Using JDK 8 Streams to Convert Between Collections of Wrapped Objects and Collections of Wrapper Objects
I have found Decorators and Adapters to be useful from time to time as I have worked with Java-based applications.…
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Software Development
Even Doctors Will Be Data Scientists
We all know how it works. You walk into a doctor’s office complaining about some pain in your leg or…
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Enterprise Java
JBoss Fuse – Some less known trick
TL;DR expose java static calls as Karaf shell native commands override OSGi Headers at deploy time override OSGi Headers after…
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Core Java
The Optimum Method to Concatenate Strings in Java
Recently I was asked this question – Is it bad for performance to use the + operator to concatenate Strings in…
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Enterprise Java
MySQL as Kubernetes Service, Access from WildFly Pod
Java EE 7 and WildFly on Kubernetes using Vagrant (Tech Tip #71) explained how to run a trivial Java EE…
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Core Java
Why is my JVM having access to less memory than specified via -Xmx?
“Hey, can you drop by and take a look at something weird”. This is how I started to look into…
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Software Development
“NoSQL Injection” – What 40000 Unsecured MongoDB Databases Mean for our Industry
The news is all over reddit… Major security alert as 40,000 MongoDB databases left unsecured on the internet Security is…
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Enterprise Java
A JAXB Nuance: String Versus Enum from Enumerated Restricted XSD String
Although Java Architecture for XML Binding (JAXB) is fairly easy to use in nominal cases (especially since Java SE 6),…
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Enterprise Java
How to: Refine Hive ZooKeeper Lock Manager Implementation
Hive has been using ZooKeeper as distributed lock manager to support concurrency in HiveServer2. The ZooKeeper-based lock manager works fine…
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