Why it matters

Structured concurrency simplifies concurrent code. Understanding shapes safer Java concurrency.

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The architecture

StructuredTaskScope: manages child tasks.

fork(): spawn task.

join(): wait all.

Structured concurrencyOpen scopedefine lifetimeFork subtasksin scopeJoin or shutdownall complete or cancelTry-with-resources block ensures cleanup; all-or-nothing semantics
Scope pattern.
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How it works end to end

Patterns: ShutdownOnFailure (fail fast), ShutdownOnSuccess (first success wins).

Combines well with virtual threads.

Timeout: joinUntil for deadline.