Java
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flatMap() vs. concatMap() vs. concatMapEager() – RxJava FAQ
There are three, seamlessly similar operators in RxJava 2.x: flatMap(), concatMap() and concatMapEager(). All of them accept the same argument – a function from…
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Eager subscription – RxJava FAQ
While teaching and mentoring RxJava, as well as after authoring a book, I noticed some areas are especially problematic. I decided…
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3 Often-Overlooked Key APM Features
Core APM features aren’t going to be enough anymore. Market-leading apps are going above and beyond, setting new standards that…
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Java Command-Line Interfaces (Part 9): parse-cmd
The parse-cmd library consists of a single class, ParseCmd.java, that is “a Java-class used to define and parse command-line parameters…
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Java 9 Migration Guide: The Seven Most Common Challenges
I’m sure you’ve heard that updating to Java 9 is no walk in the park, maybe even that it’s an incompatible…
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Spring Boot with the Justice League
Dark times are ahead for the Justice League with the formidable Darkseid coming over to conquer human kind. Batman with…
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NetBeans 9 Early Access
Java 9 is around the corner, and so is NetBeans 9. In this article we shall see the support that…
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Spring Retry, because Winter is coming
OK, this is actually not about the winter, which as we all know has already come. It is about Spring…
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A JDeps Primer – Analyzing Your Project’s Dependencies
JDeps is the Java Dependency Analysis Tool, a command line tool that processes Java bytecode, meaning .class files or the…
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