Java Patterns and Pitfalls

Full Stack Java

• Intro

Watch/Skip For The New Year

• Libraries to Watch in 2021
• Libraries to Skip in 2021

Annual Best

• Frontend Java Development in 2024
• Java Front-End Development in 2023
• Best of Java for 2020
• Decade's Best of Java: 2010s
• Best of Java for 2019
• Best of Java for 2018
• Best of Java for 2017

Web Apps/Servlets/J2EE

• Enabling Flavour In Java 11, 17, and 21
• Fixing Access For Open Graph And More
• Fixing Bouncy Castle Startup Issues
• JAX-RS Issue With Overridden Param Annotations
• Preventing JSESSIONID Cookies in JSPs
• JPQL Syntax Checking In Netbeans
• Multiple Paths for a JAX-RS (Jersey) Endpoint
• Making Wordii, a Pure Java Single-Page App
• Java: Winning Many Battles, Now To Win The War
• 3 PWA Tips to Keep You Sane
• Local Https With A Self Signed Certificate
• Web Canvas Events Are A Mess
• TeaVM: Calling Java From JavaScript
• Restoring a 19-Year-Old Game With TeaVM
• Single-Page Apps Make Java Fun Again
• Bundle Resources in a TeaVM/Flavour App
• SSML Is Not Evenly Implemented
• TeaVM vs. Blazor WebAssembly
• TeaVM Cookbook
• TeaVM Performance Even Better In Latest Builds
• TeaVM: Storing App Preferences in the Browser
• TeaVM/Flavour: A Great Web Toolkit for Java
• TeaVM/Flavour: Realtime Response to Range (Slider) Changes
• Check WAR File Name To Avoid 404 Errors
• Debugging Tomcat CPU Hogs

JPA

• JPA Configuration Tips
• Switching JPA Providers

NetBeans

• Making a NetBeans Plugin For TeaVM/Flavour Elements
• JPQL Syntax Checking In NetBeans

Streams

• How to Delete/Move Files from a Stream

SQL/Databases

• H2: The Best Database You've Never Heard Of

JavaFX

• Making NetBeans work with a Maven JavaFX Project
• Features Missing from JavaFX as of 2012

JFC/Swing

• Reflections Subtype Lookup with OneJar
• Rectangular Disabled Nimbus JTextField
• Fixing JOptionPane Focus Issues
• Swing Is Best for Oracle
• Debugging Swing Event Dispatch Thread Violations
• Expand and Collapse JSplitPane with One Touch
• JTree Space and Rendering Bugs
• High Quality Swing Icons -- Free!
• File Open Dialog Bug on Red Hat 8.0 Linux
• Place Content In JPanels

Applets/JNLP

• Sign All Applet JAR files
• Adaptive JNLP File Via JSP

Android

• Uninstall the Debug APK Before Trying the Release APK

Testing and Debugging

• High Quality Tests With PIT Mutation Testing
• Debugging Null Pointer Exceptions
• EasyMock Tests Are Usually Overspecified
• Helpful Stack Trace for Java Debugging
• Online Stack Trace Tool for Java

Image Processing and ImageIO

• Fix Broken JPEG Files Saved Using ImageIO
• Prevent Unexpected ImageIO Disk Writes

Performance

• Speeding Up Maven Builds
• Preventing Random Hangs On Linux

Advocacy

• Convincing Arguments in Java's Favor

Tools

• Trendnet TV-IP312W Info and Utilities
• Emma Limitations

Hacking the JDK

• Quick Tips for Building HotSpot from the GPL source

Desktop

• First Look at Running a Java App on the OLPC XO Laptop
• Key Applications for a 100% Pure Java Desktop

XML

• Using a Variable in an XPath Attribute Specification
• Finding a DTD within a JAR File

Input/Output

• Prevent Child Process from Locking Up by Reading Its Output
• Practical Guidelines for Java Serial Version ID and Serialization
• Create ObjectOutputStream Before ObjectInputStream
• Make PrintStream Faster: PrintStream not performing up to expectations? Make sure autoflush is turned off.

JAR Files/Command Line

• Easy Command-Line Parsing with Picocli
• JAR Manifest Class-Path Dislikes Symlinks

News

• JavaOne 2025 Preview
• Supreme Court Oracle vs. Google Ruling 2021
• CodeOne 2019 Summary
• JavaOne 2010 Summary

Core Java

• Java Playground: Online Java REPL
• Sorting With Longs
• The Parallel List Pitfall
• Comparing Java Enums (Enumerations)

Maven

• Maven Profiles Make Prod Builds Easy
• Ramdisk doesn't benefit Maven Builds
• Mysterious Partial Signing Errors Uploading To Sonatype
• A Good Maven Project Has Many Modules
• Compile Tests Without Running Them in Maven
• How To Enable Warnings in Maven
• Speeding Up Maven Builds

Remote Method Invocation (RMI)

• RMI System Design: Patterns and Pitfalls. Presentation Slides, Summary and References

Basics

• Java Tutorial

Software

• JBook: An application that lets users retrieve, read, and bookmark electronic texts, primarily from Project Gutenberg.
• RumorMonger: A free, easy-to-use peer-to-peer Java application that allows people to share rumors over the Internet.