hg: lambda/lambda/jdk: Clarify non-null operation parameters.

[paul.sandoz at oracle.com]

Changeset: 73f56347f848
Author:    psandoz
Date:      2013-10-08 12:29 +0200
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/73f56347f848

Clarify non-null operation parameters.

! src/share/classes/java/util/stream/DoubleStream.java
! src/share/classes/java/util/stream/IntStream.java
! src/share/classes/java/util/stream/LongStream.java
! src/share/classes/java/util/stream/Stream.java