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New Java Webinar: How Comcast Automates Production Debugging to Serve over 10 Million XFINITY Users

How does Comcast automate deployments without compromising the reliability of the X1 Platform for XFINITY TV? Automated workflows are becoming a golden standard for delivering top quality products in an agile environment. End users expect to receive updates faster, and product teams need to move quickly without compromising on product quality. To achieve that on the engineering side, any new ...

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JAX-RS vs Spring for REST Endpoints

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Hate building auth? Okta makes it fast and straightforward to implement user management in your Java app. Get authentication, authorization, and user analytics working in minutes. Try the APIs Free! Let’s Compare: JAX-RS vs Spring for REST Endpoints Need to decouple your web service and client? You’re probably using REST endpoints, and if you’re a Java shop you’ve probably tried ...

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How to create a thread-safe ConcurrentHashSet in Java 8?

Until JDK 8, there was no way to create a large, thread-safe, ConcurrentHashSet in Java. The java.util.concurrent package doesn’t even have a class called ConcurrentHashSet, but from JDK 8 onwards, you can use newly added keySet(default value) and newKeySet() method to create a ConcurrentHashSet backed by ConcurrentHashMap. Unlike tactical solutions like using concurrent hash map with dummy value or using ...

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Java Command-Line Interfaces (Part 11): CmdLn

This post describes using Ostermiller Java Utilities 1.08.02‘s CmdLn (Java Command Line Parser) to process command-line arguments from Java-based applications. The Ostermiller Java Utilities include several different types of utilities, but the focus of this post is on the “Command Line Parser” that is described on the components page, “Handle options and arguments to Java command line programs.” The Ostermiller ...

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What is private in Java 9?

When doing interviews I experience that most of the candidates do not know what private modifier in Java really means. They know something about it that is enough for every day coding, but far from complete. It is not a problem. Knowing enough is, well… enough. But it is still interesting to know some of the inner working of Java. ...

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How To Send Ethereum Transactions With Java

After I’ve expressed my concerns about the blockchain technology, let’s get a bit more practical with the blockchain. In particular, with Ethereum. I needed to send a transaction with Java, so I looked at EthereumJ. You have three options: Full node – you enable syncing, which means the whole blockchain gets downloaded. It takes a lot of time, so I ...

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Gain Deeper Visibility into Docker Containers and Microservices

Discover faster, more efficient performance monitoring with an enterprise APM product learning from your apps. Take the AppDynamics APM Guided Tour! Enterprises have never been under more pressure to deliver digital experiences at the high bar set by the likes of Facebook, Google, and Amazon. According to our recent App Attention Index 2017, consumers expect more from applications than ever ...

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Drools Canonical Model – Pure Java Rules

Rule engines, like Drools, typically  make use of a custom language to define a set of rules. For example, the Drools compiler translates a drl file to an internal representation (the KiePackages) that is subsequently used to generate the ReteOO/Phreak network that will perform the rules evaluation. This internal representation was never really intended to be generated or consumed by ...

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