UnknownGroupException (Java SE 12 & JDK 12 )
Keywords: java.rmi.activation.UnknownGroupException class

Module java.rmi
Package java.rmi.activation

## Class UnknownGroupException

- java.lang.Object
- - java.lang.Throwable
  - - java.lang.Exception
    - - java.rmi.activation.ActivationException
      - - java.rmi.activation.UnknownGroupException

- All Implemented Interfaces:
    `Serializable`

      public class UnknownGroupException
      extends ActivationException

  An `UnknownGroupException` is thrown by methods of classes and interfaces in the `java.rmi.activation` package when the `ActivationGroupID` parameter to the method is determined to be invalid, i.e., not known by the `ActivationSystem`. An `UnknownGroupException` is also thrown if the `ActivationGroupID` in an `ActivationDesc` refers to a group that is not registered with the `ActivationSystem`
  Since:
    1.2
  See Also:
    `Activatable`, `ActivationGroup`, `ActivationGroupID`, `ActivationMonitor`, `ActivationSystem`, Serialized Form

- - ### Field Summary

    - ### Fields declared in class java.rmi.activation.ActivationException

      `detail`

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `UnknownGroupException​(String s)` | Constructs an `UnknownGroupException` with the specified detail message.

  - ### Method Summary

    - ### Methods declared in class java.rmi.activation.ActivationException

      `getCause, getMessage`

    - ### Methods declared in class java.lang.Throwable

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

    - ### Methods declared in class java.lang.Object

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

- - ### Constructor Detail

    - #### UnknownGroupException

          public UnknownGroupException​(String s)

      Constructs an `UnknownGroupException` with the specified detail message.
      Parameters:
        `s` - the detail message
      Since:
        1.2