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  1. JDK
  2. JDK-8268483

Guidance on stream limitations in laziness and termination

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    • Bug
    • Resolution: Unresolved
    • P4
    • tbd
    • None
    • core-libs
    • None

    Description

      Streams generally produce elements lazily and avoid production of excess elements when there are short circuiting operations. However, for less common cases laziness is not possible There is a tradeoff between implementation complexity and laziness.

      Problematic cases arise for the following:
      1. use of an "escape hatch" iterator or spliterator terminal operation
      2. use of nested flatMap operations

      It would be beneficial to add some guidance to the stream package documentation.

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              vklang Viktor Klang
              psandoz Paul Sandoz
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                Created:
                Updated: