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Another JDK, another command line tool. Here, we delve into jhsdb, which you can use to launch a postmortem debugger to analyze the data from crashed JVMs.

June 6, 2017

by Dustin Marx

· 27,924 Views · 23 Likes

10 Quick Dataweave Functions

This quick reference collects many Dataweave functions for MuleSoft in one place, like reversing strings and flattening and trimming a payload.

June 6, 2017

by Satheesh Kumar

· 83,938 Views · 9 Likes

Merge Databases With Different Schema and Duplicate Entries

Removing duplicate entries from merged database tables can be anything but routine — and the source of performance woes.

June 6, 2017

by Darren Perucci

· 11,008 Views · 2 Likes

What's Wrong With Hashcode in java.lang.String?

This overview of strings and hashcode covers how hashcode works, how collisions happen, and the danger of improperly using strings as keys.

June 6, 2017

by Artem Rukavytsia

· 58,903 Views · 35 Likes

Using Python to Store Data From Many BLE Devices

We take a look at how to collect and store data from several BLE devices, a necessary issue to deal with considering the built-in limitations of BLE networking.

June 6, 2017

by Erich Styger

· 23,243 Views · 1 Like

Deploying to Tomcat from Octopus Deploy

The Octopus Deploy team has been working on improving Java support, so let's see what it takes to deploy a package from Octopus Deploy to Tomcat.

June 6, 2017

by Matthew Casperson

· 9,022 Views · 3 Likes

Building Dynamic React Apps With Database Data

In this post, we go over using an API server to create a REST API for a SQLite database, and how to create a React app that can use this database.

Updated June 5, 2017

by Jerod Johnson

· 121,615 Views · 7 Likes

Getting Started With MonoGame Using XML

Want to start making some video games? Learn how to use XML with the MonoGame framework and get started. Read on for more!

June 5, 2017

by Simon Jackson

· 7,991 Views · 1 Like

Ultra-Fast OLAP Analytics With Apache Hive and Druid (Part 1)

Druid is a high-performance, column-oriented, distributed data store. Learn how it's great for low-latency analytics and why you should integrate it with Apache Hive.

June 5, 2017

by Carter Shanklin

· 16,537 Views · 11 Likes

5 Java Performance Optimization Tricks

Some Java performance optimization tricks include starting with minimum heap allocation, using a StringBuilder instead of the + operator, and avoiding Iterator.

June 4, 2017

by Joydeep Bhattacharya

CORE

· 54,584 Views · 2 Likes

Parsing in Java (Part 1): Structures, Trees, and Rules

In Part 1 in this comprehensive series on parsers (with a focus on Java), we examine how parsers work, the difference between Parse Trees and ASTs, and more.

Updated June 4, 2017

by Gabriele Tomassetti

· 45,585 Views · 52 Likes

SQLi Part 3: In-Band, Inferential, and Out-of-Band SQL Injection

We continue on with our series on SQL injection by exploring the three main types of SQLi attacks and how cyberattackers tend to use them.

June 2, 2017

by Ian Muscat

· 32,601 Views · 2 Likes

Making Read-Only Versions of Your SQL and MySQL Databases

Here's a rundown on the ways to lock the content of a SQL or MySQL database while allowing users to access its contents.

June 1, 2017

by Darren Perucci

· 9,685 Views · 2 Likes

Concurrency in Action: Using Java's CompletableFuture With Work Manager

Learn how to create nonblocking code in Java EE by using the Java functions, CompletableFuture and Work Manager. Read on for more!

May 31, 2017

by Nikhil Bhide

· 76,041 Views · 11 Likes

How to Parse JSON Data From a REST API Using a Simple JSON Library

This quick tutorial will show you how you can use JAVA to leverage JSON data from a REST API and parse it as a JSON object.

Updated May 31, 2017

by Soumyajit Basu

CORE

· 684,178 Views · 14 Likes

Converting JSON to POJOs Using Java

If you find yourself mapping JSON to POJOs but don't want to write a full class, help yourself to a handy library that does the work for you.

May 30, 2017

by Anurag Jain

· 265,556 Views · 55 Likes

Groovy Component With Mule ESB

Learn how the Groovy component is used in Mule flows to integrate custom scripts. This tutorial shows you how to configure and utilize the Groovy component.

May 30, 2017

by Jitendra Bafna

CORE

· 21,447 Views · 3 Likes

All About VisualVM

VisualVM is one of those indispensable tools for Java (and JVM-based) developers. An oft-unsung hero, this post tells you what it is, how to set it up, and its benefits.

May 30, 2017

by Angela Stringfellow

· 36,828 Views · 26 Likes

Apache Ignite: QueryEntity and Basic SQL Query With C# Client

In this article, we will configure and run a simple Apache Ignite instance, connect it with a C# client, and query a cache with SQL.

May 29, 2017

by Ayberk Cansever

· 6,265 Views · 4 Likes

Java 8 Concepts: FP, Streams, and Lambda Expressions

This technical overview of Java 8 covers its functional aspects, including translations to the imperative paradigms, and how streams and lambdas work.

May 28, 2017

by Radek Krawiec

· 89,651 Views · 69 Likes

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