Java Resources

Utilizing the latest Spring frameworks to convert Java 8 dates inside of MongoDB, simplifying a once difficult conversion task. Great concise NoSQL and Java tutorial.

August 29, 2016

by Yong Mook Kim

· 32,181 Views · 15 Likes

Memory Leaks and Java Code

When you aren't using objects, but they aren't touched by GC, a memory leak happens. Here are six ways memory leaks happen to look for and avoid.

August 29, 2016

by Shamik Mitra

· 68,423 Views · 43 Likes

Optional Parameters Handling Strategy in Java

A detailed comparison of six different ways of handling optional parameters in Java.

August 28, 2016

by Shamik Mitra

· 29,210 Views · 20 Likes

Understand Java Callable and Future

A tutorial to help you understand how to use Callable and Future in Java.

August 28, 2016

by Shamik Mitra

· 229,124 Views · 22 Likes

The Java Synchronizers

Java is chock-full of thread synchronization primitives. But which do you use when? Find out here.

August 26, 2016

by Carlos Morera

· 27,406 Views · 24 Likes

Introducing Redisson Live Objects (Object Hash Mapping)

An in-depth explanation of live objects and how Redisson Live objects map all fields within a Java class.

August 26, 2016

by Rui Gu

· 28,444 Views · 8 Likes

Integrating with Rabbit MQ Using Spring Integration Java DSL

Here's how to integrate RabbitMQ messaging using Spring Integration's Java language DSL for connecting complex enterprise systems.

August 25, 2016

by Biju Kunjummen

· 17,077 Views · 2 Likes

JUnit 5 Dynamic Tests — Generate Tests at Runtime

Knowing the difference between static and dynamic tests, and how to generate them at run-time.

August 25, 2016

by Michael Pham

· 33,266 Views · 10 Likes

Regular Expression to Validate a Comma-Separated List of Email Addresses

Need to validate a CSV-formatted list of email addresses? Check out this regular expression and how to use it!

August 24, 2016

by Greg Brown

· 39,687 Views · 5 Likes

Functional Default Arguments, Part One

The most widely-known workaround for defining default arguments for methods and constructors in Java uses method overloading, though varargs, null values, the builder pattern, and even maps have been used as well. Here we propose a new approach based on functional constructs.

August 22, 2016

by Federico Peralta Schaffner

· 53,721 Views · 20 Likes

Spring Cloud Netflix: How Service Registration and Discovery Work

See how to integrate some of Netflix's toys into your own Spring Boot project with examples of service registration and discovery.

August 22, 2016

by Rafael Salerno

· 29,105 Views · 14 Likes

Design a Fluent API in Java

Learn how to design an API that invokes a series of methods, making it fluent, while using Java.

August 22, 2016

by Shamik Mitra

· 71,469 Views · 36 Likes

Eight Tools Every Java Developer Should Know (and Love)

The Stormpath team uses eight tools for daily tasks on their Java SDK team. Here's the full list with detailed descriptions of each.

August 21, 2016

by Mario Antollini

· 37,846 Views · 47 Likes

Smells in Java Code: Do You Recognize Them?

A look at ten common code smells, or code that violates design principles, in Java. Recognize any in your applications?

August 18, 2016

by Ganesh Samarthyam

· 53,335 Views · 37 Likes

Understanding the Java Memory Model and Garbage Collection

Are you cavalier with your data allocations? Don't worry, Java has a built-in recycling plant. It has strange places like (the Garden of) Eden. All of this is convenient and nicely explained. It also makes clear to C++ programmers why Java is never used in critical, real-time systems such as aerospace ;-)

August 18, 2016

by Siva Prasad Rao Janapati

· 233,269 Views · 91 Likes

How to Debug WebDriver JavascriptExecutor in Java

JavascriptExecutor requires us to learn JavaScript, use the Browser Console, and check our locator assumptions using FirePath.

August 18, 2016

by Alan Richardson

· 4,606 Views · 1 Like

How to Debug Chained WebDriver 'findElement' Methods in Java

Want to know how to debug a chained WebDriver findElement in Java? In short, split code across lines and breakpoint and use browser dev tools to test the locators used. Read on for more info.

August 17, 2016

by Alan Richardson

· 6,126 Views · 3 Likes