java.util.concurrent

## Class CancellationException

- java.lang.Object
- - java.lang.Throwable
  - - java.lang.Exception
    - - java.lang.RuntimeException
      - - java.lang.IllegalStateException
        - - java.util.concurrent.CancellationException

- All Implemented Interfaces:
    Serializable

      public class CancellationException
      extends IllegalStateException

  Exception indicating that the result of a value-producing task, such as a `FutureTask`, cannot be retrieved because the task was cancelled.
  Since:
    1.5
  Author:
    Doug Lea
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `CancellationException()` Constructs a `CancellationException` with no detail message.
    `CancellationException(String message)` Constructs a `CancellationException` with the specified detail message.

  - ### Method Summary

    - ### Methods inherited from class java.lang.Throwable

      `addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### CancellationException

          public CancellationException()

      Constructs a `CancellationException` with no detail message.

    - #### CancellationException

          public CancellationException(String message)

      Constructs a `CancellationException` with the specified detail message.
      Parameters:
        `message` - the detail message

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