FutureTaskPromise (Grails Async Framework

Constructors
Constructor and description
`FutureTaskPromise (PromiseFactory promiseFactory, java.util.concurrent.Callable<T> callable)`
`FutureTaskPromise (PromiseFactory promiseFactory, java.lang.Runnable runnable, T value)`

Methods
Type Params	Return Type	Name and description
	`Promise<T>`	`accept(T value)`
	`T`	`get()`
	`T`	`get(long timeout, java.util.concurrent.TimeUnit unit)`
	`boolean`	`isDone()`
	`Promise<T>`	`onComplete(groovy.lang.Closure callable)`
	`Promise<T>`	`onError(groovy.lang.Closure callable)`
	`protected void`	`set(T t)`
	`protected void`	`setException(java.lang.Throwable t)`
	`Promise<T>`	`then(groovy.lang.Closure callable)`

Inherited Methods
Methods inherited from class	Name
`class java.util.concurrent.FutureTask`	java.util.concurrent.FutureTask#isCancelled(), java.util.concurrent.FutureTask#isDone(), java.util.concurrent.FutureTask#run(), java.util.concurrent.FutureTask#get(), java.util.concurrent.FutureTask#get(long, java.util.concurrent.TimeUnit), java.util.concurrent.FutureTask#cancel(boolean), java.util.concurrent.FutureTask#wait(long, int), java.util.concurrent.FutureTask#wait(long), java.util.concurrent.FutureTask#wait(), java.util.concurrent.FutureTask#equals(java.lang.Object), java.util.concurrent.FutureTask#toString(), java.util.concurrent.FutureTask#hashCode(), java.util.concurrent.FutureTask#getClass(), java.util.concurrent.FutureTask#notify(), java.util.concurrent.FutureTask#notifyAll()
`class java.lang.Object`	`java.lang.Object#wait(long, int), java.lang.Object#wait(long), java.lang.Object#wait(), java.lang.Object#equals(java.lang.Object), java.lang.Object#toString(), java.lang.Object#hashCode(), java.lang.Object#getClass(), java.lang.Object#notify(), java.lang.Object#notifyAll()`

[Groovy] Class FutureTaskPromise<T>