Java's Toughest Bugs

Course details

Troubleshooting is a key skill in Java programming, but what are best practices for finding, fixing, and hopefully preventing bugs? In this course, software developer Kathryn Hodge addresses how to handle some of the toughest bugs you’ll encounter in Java. Gain an understanding of the significance and impact of bugs in Java applications while you discover various bug detection techniques and essential debugging fundamentals. Explore specific bug types, including null pointer exceptions, endless loops, and thread-related issues, and build up the knowledge and skills to address them. Plus, learn about bugs related to data serialization and deserialization using Jackson and step through real-world case studies for analyzing and solving complex bugs.

Concepts

0. Introduction

01 - Why are bugs important and complex
02 - Using GitHub Codespaces with this course
03 - Overview of Java bugs
04 - How to establish the impact of a bug
05 - Common debugging tools in Java
06 - How to evaluate the visibility and monitoring of your system

1. Bug #1 - Endless Loop Phenomena

07 - Endless loop symptoms
08 - Debugging steps
09 - Solve the bug

2. Bug #2 - Pesky Null Pointer Exceptions

10 - Null pointer symptoms
11 - Debugging steps
12 - Solve the bug
13 - Using optionals to avoid null pointer exceptions

3. Bug #3 - Scope Abstraction Nightmare

14 - Bad scope with abstraction symptoms
15 - Debugging steps
16 - Solve the bug

4. Bug #4 - Missing Data from Model Class

17 - Missing data symptoms
18 - Debugging steps
19 - Solve the bug

5. Bug #5 - Inconsistent Results in Multithreaded Environment

20 - Inconsistent thread data symptoms
21 - Debugging steps
22 - Solve the bug

6. Bug #6 - Infinitely Running Threads in Multithreaded Environment

23 - Infinitely running threads symptoms
24 - Debugging steps
25 - Solve the bug

Conclusion

26 - Strategies for preventing Java bugs