CompletionException

public class CompletionException
extends RuntimeException

java.lang.Object
↳	java.lang.Throwable
	↳	java.lang.Exception
		↳	java.lang.RuntimeException
			↳	java.util.concurrent.CompletionException

Exception thrown when an error or other exception is encountered in the course of completing a result or task.

Summary

Public constructors
`CompletionException(String message, Throwable cause)` Constructs a `CompletionException` with the specified detail message and cause.
`CompletionException(Throwable cause)` Constructs a `CompletionException` with the specified cause.

Protected constructors
`CompletionException()` Constructs a `CompletionException` with no detail message.
`CompletionException(String message)` Constructs a `CompletionException` with the specified detail message.

Inherited methods

From class


        
          java.lang.Throwable

`final void`	`addSuppressed(Throwable exception)` Appends the specified exception to the exceptions that were suppressed in order to deliver this exception.
`Throwable`	`fillInStackTrace()` Fills in the execution stack trace.
`Throwable`	`getCause()` Returns the cause of this throwable or `null` if the cause is nonexistent or unknown.
`String`	`getLocalizedMessage()` Creates a localized description of this throwable.
`String`	`getMessage()` Returns the detail message string of this throwable.
`StackTraceElement[]`	`getStackTrace()` Provides programmatic access to the stack trace information printed by `printStackTrace()`.
`final Throwable[]`	`getSuppressed()` Returns an array containing all of the exceptions that were suppressed, typically by the `try`-with-resources statement, in order to deliver this exception.
`Throwable`	`initCause(Throwable cause)` Initializes the cause of this throwable to the specified value.
`void`	`printStackTrace()` Prints this throwable and its backtrace to the standard error stream.
`void`	`printStackTrace(PrintWriter s)` Prints this throwable and its backtrace to the specified print writer.
`void`	`printStackTrace(PrintStream s)` Prints this throwable and its backtrace to the specified print stream.
`void`	`setStackTrace(StackTraceElement[] stackTrace)` Sets the stack trace elements that will be returned by `getStackTrace()` and printed by `printStackTrace()` and related methods.
`String`	`toString()` Returns a short description of this throwable.

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

CompletionException

Added in API level 24

public CompletionException (String message, 
                Throwable cause)

Constructs a CompletionException with the specified detail message and cause.

Parameters
`message`	`String`: the detail message
`cause`	`Throwable`: the cause (which is saved for later retrieval by the `Throwable.getCause()` method)

CompletionException

Added in API level 24

public CompletionException (Throwable cause)

Constructs a CompletionException with the specified cause. The detail message is set to (cause == null ? null : cause.toString()) (which typically contains the class and detail message of cause).

Parameters
`cause`	`Throwable`: the cause (which is saved for later retrieval by the `Throwable.getCause()` method)

Protected constructors

CompletionException

Added in API level 24

protected CompletionException ()

Constructs a CompletionException with no detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause.

CompletionException

Added in API level 24

protected CompletionException (String message)

Constructs a CompletionException with the specified detail message. The cause is not initialized, and may subsequently be initialized by a call to initCause.

Parameters
`message`	`String`: the detail message