Latest Articles

Schema Validation of XML/JAXB Annotated Object Containing MTOM Attachment [Code Snippet]

In this article, we will explain how can we validate an XML/JAXB annotated object containing an MTOM attachment against an XSD without losing the MTOM attachment.

November 8, 2016

by Utsab Paul

· 8,697 Views · 1 Like

G1GC New Terms and Tuning Flags

Here is a list of important options and their default values. This list applies to the latest Java HotSpot VM, build 24.

November 7, 2016

by Krishnakumar Nallasamy

· 48,046 Views · 13 Likes

Publishing HTML Reports in Pipeline

Liam Newman shows you how you can use the HTML Publisher Plugin instead of writing a custom plugin for each type of report.

November 7, 2016

by Liam Newman

· 39,851 Views · 2 Likes

Using YARN API to Determine Resources Available for Spark Application Submission: Part II

Using the YARN REST API for submitting Spark applications and determining available resources. Applies to all Apache Hadoop distributions.

November 7, 2016

by Rachel Warren

· 5,115 Views · 2 Likes

Passwordless SSH Access for Automation

DevOps engineers are often responsible for configuring passwordless access to remote machines. Read on for a couple of strategies for doing this.

November 7, 2016

by Thomas Kurian Theakanath

· 21,630 Views · 3 Likes

ClassNotFoundException vs. NoClassDefFoundError

This quick tutorial will help you learn to distinguish between two similar, but different problems that can crop up in your code.

November 7, 2016

by Suresh Rajagopal

· 378,595 Views · 68 Likes

Calculating the Memory Usage of Objects and Arrays

Curious as to how Java uses memory to store objects and arrays? Read on to find out some of the math behind it and more information on just how this is done.

November 7, 2016

by Ajitesh Kumar

· 58,705 Views · 24 Likes

7 Tools For Extracting Text From HTML Documents

The following ‘scraping’ tools range from extraordinarily simple tools that are designed for beginner users and small projects to advanced tools that require coding knowledge and are intended for larger, more difficult tasks.

November 7, 2016

by Elaina Meiser

· 26,139 Views · 8 Likes

How to Resolve an Invalid Number Error When Using Oracle TO_NUMBER

Getting an Invalid Number error with Oracle? This article will show you what's causing it and how you can solve it.

November 6, 2016

by Ben Brumm

· 256,884 Views · 2 Likes

Spring Boot: Hazelcast for Session Replication

See how you can easily set up session clustering and how it impacts your web tier's application architecture.

November 5, 2016

by Neil Stevenson

· 19,772 Views · 7 Likes

How Expedia Uses NGINX Plus for Cloud Migration at Scale

This post is adapted from a presentation delivered at nginx.conf 2016 by Dave Drinkle of Expedia, Inc.

November 4, 2016

by Floyd Smith

· 5,834 Views · 1 Like

Review: ''Fifty Quick Ideas to Improve Your User Stories''

''Fifty Quick Ideas to Improve Your User Stories'' by Gojko Adzic and David Evans provides solutions to many issues involving Agile projects. Victor Chircu reviews here.

November 4, 2016

by Victor Chircu

· 7,218 Views · 5 Likes

A Survey of Modern Application Integration Architectures

The IT world is moving forward fast, and a single integration backbone is not sufficient enough in this era of integration.

November 4, 2016

by Kai Wähner

CORE

· 16,687 Views · 18 Likes

Running WSO2 Identity Server on Port 443

Read on to learn how to access the WSO2 Identity Server using HTTPS without needing to specify a port number in the URL.

November 4, 2016

by Raihaan Cassim

· 6,753 Views · 2 Likes

OSGi: Declarative Services and the Registry

Meet declarative services and see three ways to get them into the OSGi Service Registry.

November 4, 2016

by Alan Hohn

· 15,647 Views · 3 Likes

Reusable Components in Java

A guide to component based design and development of Java coding to follow SOLID patterns and practices for optimal Java development.

November 4, 2016

by Grzegorz Ziemoński

· 27,256 Views · 23 Likes

Keeping Your Code Clean While Logging

A prominent sticking points that rears its head is application logging. Unit testing is about isolating objects; logging is about dumping tons of information in a file.

November 3, 2016

by Erik Dietrich

· 9,779 Views · 3 Likes

Lambda Architecture with Apache Spark

A lot of players on the market have built successful MapReduce workflows to daily process terabytes of historical data. But who wants to wait 24h to get updated analytics?

November 3, 2016

by Taras Matyashovskyy

· 76,965 Views · 30 Likes

A Type Safe Java Map Builder Using Alternating Interface Exposure

Learn how you can make your existing and future Java classes more user-friendly and less error prone using the Alternating Interface Exposure scheme.

November 3, 2016

by Per-Åke Minborg

· 12,732 Views · 25 Likes

Transactions for the REST of Us

This article illustrates a TCC protocol that can ensure atomicity of the distributed transaction across multiple REST APIs.

November 3, 2016

by Guy Pardon

· 33,871 Views · 17 Likes

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