org.apache.lucene.util

## Class SetOnce.AlreadySetException

- java.lang.Object
- - java.lang.Throwable
  - - java.lang.Exception
    - - java.lang.RuntimeException
      - - java.lang.IllegalStateException
        - - org.apache.lucene.util.SetOnce.AlreadySetException

- All Implemented Interfaces:
    Serializable
  Enclosing class:
    SetOnce<T>

      public static final class SetOnce.AlreadySetException
      extends IllegalStateException

  Thrown when `SetOnce.set(Object)` is called more than once.
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `AlreadySetException()`

  - ### 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

    - #### AlreadySetException

          public AlreadySetException()

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