Java Resources

Apache PDFBox Command-Line Tools: No Java Coding Required

Manipulating PDFs via the command line — with no Java experience necessary — is possible with Apache PDFBox 2! Find out more in this post.

July 21, 2016

by Dustin Marx

· 20,203 Views · 7 Likes

Folding the Universe, Part III: Java 8 List and Stream

Part three of a series on modeling Java problems as folds, looking specifically at streams in Java 8.

July 20, 2016

by Pierre-Yves Saumont

· 38,282 Views · 17 Likes

How to Test if Your Multi-Threaded Java Rest Service Is Thread Safe

Thomas Krieger shows how to test if your rest service is thread safe by analyzing a counter with a race condition and using a multi-threaded test runner.

July 19, 2016

by Thomas Krieger

· 46,578 Views · 18 Likes

Tabs vs Spaces: How They Write Java in Google, Twitter, Mozilla, and Pied Piper

The biggest war among developers continues to rage on. But where do the giants in technology stand on the issue?

July 19, 2016

by Alex Zhitnitsky

· 23,903 Views · 12 Likes

Is Java Dead? No! Here’s Why...

We see this “Is Java dead?” question pop up year after year, and yet, by all external markers, Java is alive, well, and growing. Read on for more info!

July 18, 2016

by Lindsay Brunner

· 32,378 Views · 36 Likes

Using Spring-Managed Event Listeners in Hibernate

Learn from Bozhidar Bozhanov of TomTom about a new and better way to use listeners in Hibernate (because the old way is broken).

July 17, 2016

by Bozhidar Bozhanov

· 20,713 Views · 4 Likes

Java Runtime Performance Monitoring: GC and Safepoints

Manoj Chandrabhanu shares his method for analyzing Java runtime performance while using Jenkins and looking at logs in JVM.

July 16, 2016

by Manoj Chandrabhanu

· 11,239 Views · 9 Likes

Creating a Blogging Platform in Java: Part 1

In the first part of his series on creating a blogging platform in Java, Grzegorz Ziemonski shares his mindset on the genesis of his project and preparation.

July 16, 2016

by Grzegorz Ziemoński

· 20,662 Views · 8 Likes

MuleSoft: Connect to a Flat File

This tutorial teaches MuleSoft users how to connect to a flat file — in this case, something within Microsoft Access.

July 14, 2016

by Sulthony H

· 6,031 Views · 6 Likes

Passing Java Arrays in Oracle Stored Procedure From Mule ESB Flow

A tutorial on how to use Java Arrays with Oracle database and Mule ESB.

Updated July 11, 2016

by Priyobroto Ghosh

· 27,049 Views · 9 Likes

Spring Data + Solr Cloud + Zookeeper + MongoDB + Ubuntu Integration

This article will show you how to set up a clustered MongoDB to store the data, a Solr Cloud to index the data in MongoDB in real time. Then how to use mongo-connector to replicate data from MongoDB to Solr Cloud. And finally, develop a simple Spring Data Solr application that talks to Solr Cloud to search the data in MongoDB.

July 11, 2016

by Chuanbao Lu

· 10,773 Views · 4 Likes

Code Coverage for JavaFX With GitLab CI

Looking to test an application with JavaFX on GitLab CI? Let me show you how it's done...

July 7, 2016

by Kai Winter

· 8,503 Views · 3 Likes

MongoDB Java API: Using a Sequence Collection With FindAndModify()

Documents in MongoDB have a unique object ID when they are created. How can we get around this to develop a more effective REST API when document lookups are involved?

July 6, 2016

by Kevin Hooke

· 10,450 Views · 2 Likes

Creating PDF Documents With Apache PDFBox 2

Learn how to create PDF Documents with Java and parse the text, with an addition about a bug that Apache PDFBox 2 exposes in JDK 8.

July 6, 2016

by Dustin Marx

· 59,125 Views · 4 Likes

Self-Describing Logging Using Log4J

How many times have you reviewed a log file without the data key (secret decoder ring) that explains what everything means. When a user more informative and intuitive format like JSON or XML? It's not too hard to do and can be quite helpful. Here's an example.

July 5, 2016

by Bob Reselman

· 8,572 Views · 2 Likes

Java 8 Optional—Replace Your Get() Calls

If we still use the get() functionality on optionals, we're effectively opening ourselves to the same problems as null checks. Here's how we should properly use this new tool in our arsenal.

July 5, 2016

by Mario Pio Gioiosa

· 129,154 Views · 87 Likes

Get Your Java Package Structures Right

Packaging is one of the underrated features of Java. IDEs are so smart that it only takes a few clicks to reorganize the whole project. But we can do better! We can really benefit from a good package structure.

July 4, 2016

by Grzegorz Ziemoński

· 38,771 Views · 26 Likes