# All Classes and Interfaces

Class
Description
StructuredTaskScope<T,R>PREVIEW
Preview.
An API for structured concurrency.
StructuredTaskScope.ConfigurationPREVIEW
Preview.
Represents the configuration for a `StructuredTaskScope`.
StructuredTaskScope.FailedExceptionPREVIEW
Preview.
Exception thrown by `StructuredTaskScope.join()`PREVIEW when the outcome is an exception rather than a result.
StructuredTaskScope.Joiner<T,R>PREVIEW
Preview.
An object used with a `StructuredTaskScope`PREVIEW to handle subtask completion and produce the result for the scope owner waiting in the `join`PREVIEW method for subtasks to complete.
StructuredTaskScope.Subtask<T>PREVIEW
Preview.
Represents a subtask forked with `StructuredTaskScope.fork(Callable)`PREVIEW or `StructuredTaskScope.fork(Runnable)`PREVIEW.
StructuredTaskScope.Subtask.StatePREVIEW
Preview.
Represents the state of a subtask.
StructuredTaskScope.TimeoutExceptionPREVIEW
Preview.
Exception thrown by `StructuredTaskScope.join()`PREVIEW if the scope was created with a timeout and the timeout expired before or while waiting in `join`.