Java Resources

Towards More Functional Java Using Lambdas as Predicates

This series on Java 8 functional features and functional style reviews the use of lambdas and the importance of separation of concerns.

September 18, 2016

by Scott Leberknight

· 18,223 Views · 29 Likes

Memory Analysis: How to Obtain Java Heap Dump

Exploring automatic and manual Heap Dumps in Oracle JDK8 for troubleshooting memory issues.

September 16, 2016

by Siva Prasad Rao Janapati

· 88,440 Views · 10 Likes

Create Thread Dumps (Nine Options)

Thread dumps are vital artifacts to diagnose CPU spikes, deadlocks, memory problems, unresponsive applications, poor response times, and other system problems.

Updated September 15, 2016

by Ram Lakshmanan

CORE

· 184,561 Views · 44 Likes

JMS: A Quick and Complete Guide

This guide will walk you through all you need to know about JMS and how it works, communicates, and connects with other software.

September 14, 2016

by Arun Pandey

CORE

· 31,831 Views · 31 Likes

Distributed Tasks Execution and Scheduling in Java, Powered By Redis

A walk through the new features of Redisson node, a way to perform distributed task execution using Redis.

September 13, 2016

by Nikita Koksharov

· 42,508 Views · 11 Likes

Mockito Custom Answers

Custom argument matchers and custom answer behavior allow us to use Mockito to mock complex and responsive behavior, making for highly realistic tests.

September 13, 2016

by Alan Hohn

· 6,309 Views · 2 Likes

How HashMap Works in Java

HashMap questions are common in job interviews. Here's some in-depth explanation of how HashMaps work internally in Java.

September 12, 2016

by Jackson Joseraj

· 257,536 Views · 96 Likes

Mockito Basic Example Using JDBC

Object mocking frameworks use complex code generation and reflection to cut out a lot of boilerplate test code.

September 12, 2016

by Alan Hohn

· 168,369 Views · 18 Likes

Forbidden APIs of Java

Dealing with locale settings and APIs can be hazardous. Read on to find out how to deal with this situation!

September 9, 2016

by Furkan Kamaci

· 17,715 Views · 25 Likes

Creating a Simple Java REST Service Using HTTP-RPC

We take a look at how to implement a Java-based web service using the HTTP-RPC framework. Read on to find out how and for some example code.

September 8, 2016

by Greg Brown

· 12,942 Views · 7 Likes

How Netflix's Circuit Breaker Works

See how Netflix's microservices-oriented circuit breaker works to prevent cascade failures and other problems.

September 7, 2016

by Rafael Salerno

· 46,494 Views · 22 Likes

How to Debug Java Using a Decompiler

Decompiling Java code may not be something you do in daily development but it can help turn the tide when debugging critical problems.

September 6, 2016

by Freyja Spaven

· 12,915 Views · 5 Likes

How ConcurrentHashMap Works Internally in Java

Understanding how ConcurrentHashMap works with a list of concrete examples.

September 6, 2016

by Arun Pandey

CORE

· 465,718 Views · 66 Likes

JAX-WS With MTOM Using Mule

Want your XML to stay lightweight? See how to keep it that way to avoid bloated messages.

September 2, 2016

by Anil Kumar V

· 6,208 Views · 11 Likes

Different Types of References in Java

An explanation of the four main types of references in Java and how they are affected during Garbage Collection.

September 1, 2016

by Shamik Mitra

· 41,850 Views · 34 Likes

Best Practices for Code Documentation in Java

How to use JavaDoc effectively to communicate to your teammates what your code is supposed to do.

August 29, 2016

by Damian Wolf

· 106,598 Views · 24 Likes

Spring Data, MongoDB, and Java 8

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

· 32,303 Views · 15 Likes