Lab 8 · Structured Concurrency
Difficulty: Advanced Time: 60 minutes Topics: StructuredTaskScope, Joiner, ScopedValue
Requires: Java 21+ (preview)
Objectives
- ✅ Use StructuredTaskScope for parent-child relationships
- ✅ Structure tasks with clear completion guarantees
- ✅ Handle failures with Joiner strategies
- ✅ Use ScopedValue for clean context passing
Key Exercises
Exercise 1: Basic StructuredTaskScope with awaitAll() Exercise 2: failFast joiner for cancellation Exercise 3: Error handling with JoinedException Exercise 4: ScopedValue for context passing