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+doc,java document the PatternsCS.ask

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Konrad Malawski 2016-02-24 16:39:14 +01:00
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akka-docs/rst/java/untyped-actors.rst
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@ -519,6 +519,10 @@ involves creating an internal actor for handling this reply, which needs to
have a timeout after which it is destroyed in order not to leak resources; see have a timeout after which it is destroyed in order not to leak resources; see
more below. more below.
.. note::
A Java 8 variant of the ``ask`` pattern that returns a ``CompletionStage`` instead of a Scala ``Future``
is available in the ``akka.pattern.PatternsCS`` object.
.. warning:: .. warning::
To complete the future with an exception you need send a Failure message to the sender. To complete the future with an exception you need send a Failure message to the sender.