v0.5.0

This release changes the asynchronous task API and improves cancellation handling.

Breaking changes

AsyncFun<T> now receives a single public Continuation<? super T> and returns void.

Task.fromAsync(continuation -> {
    Executor executor = continuation.getExecutor();

    continuation.invokeOnCancellation(() -> {
        // Cleanup
    });

    executor.execute(() -> continuation.onSuccess("done"));
});

Previously, asynchronous functions received an Executor and CompletionCallback, then returned a Cancellable.

Continuation now:

• Extends CompletionCallback
• Provides the task's Executor through getExecutor()
• Registers cancellation cleanup through invokeOnCancellation()
• Separates cancellation cleanup from onCancellation(), which signals task completion

This change is source and binary incompatible.

Other changes

• Improved cancellation race handling for asynchronous tasks, blocking I/O, futures, and Kotlin coroutines.
• Corrected JSpecify annotations and nullable generic bounds.
• Added NullAway and Error Prone checks for Java sources.
• Updated Kotlin to 2.4.10 and kotlinx-coroutines to 1.11.0.
• Expanded cancellation and cancellable-future test coverage.
• Updated publishing and dependency automation.

Full changelog: v0.4.1...v0.5.0