Additional Notes
How to preserve an exception’s original cause?
Track: Java
Topic: Exceptions
Focus: Cause Chaining and Error Context
Java: Cause Chaining and Error Context
Answer
Pass the original exception as the cause. Frame the concept in practical terms so you can explain it during interview discussion.
To preserve an exception's original cause, pass the original exception to the constructor of the new exception class. This ensures that the stack trace and error context remain intact for debugging. For example, if reading from a file fails, you might wrap the `FileNotFoundException` within a custom exception to add context about the file operation.
To preserve an exception's original cause, pass the original exception to the constructor of the new exception class. This ensures that the stack trace and error context remain intact for debugging. For example, if reading from a file fails, you might wrap the `FileNotFoundException` within a custom exception to add context about the file operation.
Topics: Cause Chaining and Error Context Exceptions Java