UnionType (Java Platform SE 8 )
Keywords: javax.lang.model.type.UnionType interface
Date: 2026-04-17

compact3
javax.lang.model.type

## Interface UnionType

- All Superinterfaces:
    AnnotatedConstruct, TypeMirror

      public interface UnionType
      extends TypeMirror

  Represents a union type. As of the `RELEASE_7` source version, union types can appear as the type of a multi-catch exception parameter.
  Since:
    1.7

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `List<? extends TypeMirror>` | `getAlternatives()` Return the alternatives comprising this union type.

    - ### Methods inherited from interface javax.lang.model.type.TypeMirror

      `accept, equals, getKind, hashCode, toString`

    - ### Methods inherited from interface javax.lang.model.AnnotatedConstruct

      `getAnnotation, getAnnotationMirrors, getAnnotationsByType`

- - ### Method Detail

    - #### getAlternatives

          List<? extends TypeMirror> getAlternatives()

      Return the alternatives comprising this union type.
      Returns:
        the alternatives comprising this union type.

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