Core Java

Core Java news, information, and how-to advice

Congrats on the new job! Please disregard all the red flags

Once upon a time ... a fledgling developer was so thrilled to land a temporary gig that he missed all the warning signs of a setup for failure.

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Java Q&A: The ultimate superclass, Part 2

Java beginners are invited to dig deeper into Java's ultimate superclass with this introduction to Object's finalize(), getClass(), and hashCode() methods.

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New BigInteger methods in Java 8

Unlike Value(), BigInteger's four new ValueExact() methods will throw an ArithmeticException if the number contained in a BigInteger instance isn't specified in the method's name. While nobody likes exceptions, this post demonstrates...

Break Down Barriers and Reduce Cycle Times with DevOps

Learn why and how many successful companies have changed how they deliver software by dismantling the traditional silos that stifle collaboration and progress.

web security

After Heartbleed: 4 OpenSSL alternatives that work

In the wake of Heartbleed, developers are advised to take a closer look at SSL alternatives like Mozilla NSS, PolarSS, and GnuTLS.

Who's to blame for 'catastrophic' Heartbleed Bug?

Over the past week, the Heartbleed bug has sent tech industry giants and startups scurrying to patch servers and change digital encryption certificates, but who's to blame for this flaw in the open-source protocol?

Open source Java projects: Spring Integration

Use Spring Integration to develop a robust message-passing architecture that integrates and coordinates enterprise components across an ActiveMQ message bus via JMS.

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Coeffects: The next big programming language challenge

Modern applications run in a wide variety of environments, which demands that they be increasingly context aware. Here, Tomas Petricek demonstrates the use of annotated types to build context awareness into an application, while also...

4 ways to modernize your application performance monitoring strategy

Online retail sales in the US will reach $370 billion by 2017 - a 10 percent compound annual growth rate over the next 5 years.

Don't want to mix programming languages? You already do!

Even if you don't realize it, polyglot programming is the new normal for app dev, especially on the web.

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Fifty years on, mainframer remembers 'a fantastic time to be an engineer'

The IBM System/360 revolutionized business computing with the first set of compatible, scalable systems

Sorry, JavaFX -- Java 8 won't help you matter

Java 8 aims to push JavaFX to the forefront of mobile and embedded development, with upgraded UI controls, an embedded graphics stack, and 3D graphics capabilities, but many developers and analysts are less than convinced.

Java Tip: Hibernate validation in a standalone implementation

Get started with declarative annotations, composite validation rules, and selective validation in Hibernate Validator 5.0.3.

10 key findings illustrate the need for a new breed of APM solutions

This paper highlights ten key takeaways from the most recent survey on the impact of Cloud on application management. Read Now>>

Choosing a software methodology.

Scrum co-inventor: Agile can lower risk, but it won't tell you how to code

Co-inventor of Scrum and Agile Manifesto signatory, Ken Schwaber says the time has come for a more measurable, evidence-based approach to evaluating software development projects and methodologies.

Contributions of individual programming languages to software development

Let's not argue anymore about which programming language is best! This post considers some of our most and least popular languages in terms of their ongoing contributions to software development.

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Software developers, you're better when you work together

Survey results from software developers at companies including IBM, Google, and Intel show that collaborative, open source development is on the rise for both in-house and shared projects.

The dark side of lambda expressions in Java 8

Takipi CEO Tai Wiess says that lambda expressions in Java 8 offer more concise code at the expense of longer stack traces and more complex debugging, especially when you throw Nashorn into the mix.

Mobile Apps and Devices Slash Customer Cycle Time

Consolidated Engineering Laboratories' field employees used to collect data on triplicate forms that were sometimes hard to read and difficult to manage. After procuring iPad devices from CDW and integrating mobile apps with

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Abstract class versus interface in the JDK 8 era

The difference between abstract classes and interfaces has long vexed Java developers. Find out how Java 8's default methods introduce both new complexity and new options to that familiar programming conundrum.

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Git smart! 20 essential tips for Git and GitHub users

The programming world's favorite distributed version control system also lets you find, share, and improve code. Here's how to make Git and GitHub work better for you.

Video: Functions as first-class values in Java 8

Java 8 treats methods as first-class citizens, which makes Java programming both more flexible and more functional. Get a quick video introduction to programming with first-class methods and using lambdas to express behaviors from the

Java vs. Go: The case for cloud-specific languages

Go is one example of an emerging new class of programming languages constructed for private, public, and hybrid cloud computing delivery models.

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