DuplicateTaskCompletionException

An exception indicating that something attempted to set a result, exception, or cancellation on a Task that was already completed.

static IllegalStateException

of(Task<?> task)

Creates a


                    DuplicateTaskCompletionException

from a Task.

From class java.lang.Throwable

synchronized final void	addSuppressed(Throwable arg0)
synchronized Throwable	fillInStackTrace()
synchronized Throwable	getCause()
String	getLocalizedMessage()
String	getMessage()
StackTraceElement[]	getStackTrace()
synchronized final Throwable[]	getSuppressed()
synchronized Throwable	initCause(Throwable arg0)
void	printStackTrace()
void	printStackTrace(PrintWriter arg0)
void	printStackTrace(PrintStream arg0)
void	setStackTrace(StackTraceElement[] arg0)
String	toString()

From class java.lang.Object

Public Methods

The Task must be complete.