Spring Boot with the Justice League

java-interview-questions-answers

Dark times are ahead for the Justice League with the formidable Darkseid coming over to conquer human kind. Batman with the help of Wonder woman are on a quest to get the league together with one critical aspect missing. A proper Justice league member management system. As time is not on their side, they do not want to go through ...

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Concerns About The Blockchain Technology

The so-called (and marketing-branded) “blockchain technology” is promised to revolutionize every industry. Anything, they say, will become decentralized, free from middle men or government control. Services will thrive on various installments of the blockchain, and smart contracts will automatically enforce any logic that is related to the particular domain. I don’t mind having another technological leap (after the internet), and ...

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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 NetBeans 9 Early Access provides to developers to build Java 9 compatible applications. Java 9 provides many (around 90) new features including Modules and JShell, a Read-Eval-Print-Loop (REPL), among many others. You may seek more information in the references at the ...

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Modeling has_many Relationships with DynamoDB

Recently our team had the requirement of storing data coming from sensors, and we chose DynamoDB for its ability to handle a massive amount of data efficiently. As a fully managed NoSQL database service with the promise of high-performance and scalability, DynamoDB was a perfect choice. Coming from a strong SQL background and being a fan of using ORM such ...

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Pimp my Git – Manage Different Git Identities

I usually work on different Git projects that need different Git identities. My work flow for new repositories was Clone new repository. Go to cloned repository. If it is necessary to change the Git identity, call a shell script that runs `git config user.name “Sandra Parsick”; git config user.email [email protected]` I was never happy with this solution, but it works. ...

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Spring Retry, because Winter is coming

java-interview-questions-answers

OK, this is actually not about the winter, which as we all know has already come. It is about Spring Retry, a small Spring Framework library that allows us to add retry functionality to any task that should be retryable. There’s a very good tutorial here, explaining how the simple retry and recovery is set up. It explains very well ...

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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 JARs that contain them, and analyzes the statically declared dependencies between classes. The results can be filtered in various ways and can be aggregated to package or JAR level. JDeps can also tell you which JDK-internal APIs your project is ...

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