Learn the advantages and disadvantages of the configuring a mock object the when().thenXxx() or the doXxx().when() way.

Back to the basics: one step closer to inline classes, benchmarking GC latencies, Java after 8, and why it's not a good idea to rely on averages!

Explore the functionality offered by libphonenumber to format and validate phone numbers using code samples.

A set of popular Memory Management-related interview questions and of course answers.

Compare and contrast the Java CyclicBarrier and CountDownLatch synchronization utilities

Learn how to calculate the intersection of 2 arrays using the Java Stream API.

Learn how to use Java's this keyword to reference the current object.

Learn how to check whether a Java class is abstract using the Reflection API.

Learn how to use JNA to access native code easily when compared to JNI.

A quick and practical comparison between fail-safe and fail-fast iterators in Java.

How to remove all duplicate elements from a List - first with plan Java, then Guava and finally with Java 8 lambdas.

Understand the difference between calling HttpServletRequest#getSession() and HttpServletRequest#getSession(boolean).

Java's finally keyword is helpful for clean-up operations around code that may throw errors. We explore how it works and when it can have unexpected behaviour.

Look into distributed background job scheduling and processing in Java using JobRunr and have it integrate with Spring.

Learn how to use method overloading to simulate default parameters in Java.

A quick example and explanation of the toUpperCase API of the standard String class in Java.

Learn how the JVM makes sure to collect the unreachable but cyclic object references

Learn different ways to end a long-running execution after a certain time in Java.

Compare the newCachedThreadPool() and newFixedThreadPool() implementations and their use-cases