CancellationException (Java SE 25 & JDK 25)
Description: declaration: module: java.base, package: java.util.concurrent, class: CancellationException
Keywords: java.util.concurrent.CancellationException class

# 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
See Also:
  - Serialized Form

- ## Constructor Summary

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

- ## Method Summary

  ### Methods declared in class Throwable

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

  ### Methods declared in class Object

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

- ## Constructor Details

  - ### 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