SupervisorJob

Creates a supervisor job object in an active state. Children of a supervisor job can fail independently of each other.

A failure or cancellation of a child does not cause the supervisor job to fail and does not affect its other children, so a supervisor can implement a custom policy for handling failures of its children:

• A failure of a child job that was created using launch can be handled via CoroutineExceptionHandler in the context.

• A failure of a child job that was created using async can be handled via Deferred.await on the resulting deferred value.

If a parent job is specified, then this supervisor job becomes a child job of parent and is cancelled when the parent fails or is cancelled. All this supervisor's children are cancelled in this case, too.