hg: lambda/lambda/jdk: Add post-transform functionality to Collector; eliminate STRICTLY_MUTATIVE collector characteristic; restructure existing set of Collectors, including various renamings; add StringJoiner.merge() method; more Collector tests

[brian.goetz at oracle.com]

Changeset: de85a85ab586
Author:    briangoetz
Date:      2013-06-13 19:20 -0400
URL:       http://hg.openjdk.java.net/lambda/lambda/jdk/rev/de85a85ab586

Add post-transform functionality to Collector; eliminate STRICTLY_MUTATIVE collector characteristic; restructure existing set of Collectors, including various renamings; add StringJoiner.merge() method; more Collector tests

! src/share/classes/java/util/DoubleSummaryStatistics.java
! src/share/classes/java/util/IntSummaryStatistics.java
! src/share/classes/java/util/LongSummaryStatistics.java
! src/share/classes/java/util/Optional.java
! src/share/classes/java/util/StringJoiner.java
! src/share/classes/java/util/stream/Collector.java
! src/share/classes/java/util/stream/Collectors.java
! src/share/classes/java/util/stream/DelegatingStream.java
! src/share/classes/java/util/stream/ReduceOps.java
! src/share/classes/java/util/stream/ReferencePipeline.java
! src/share/classes/java/util/stream/Stream.java
! test/java/lang/StringBuilder/AddAllTest.java
! test/java/util/StringJoiner/BasicTest.java
! test/java/util/stream/bootlib/java/util/stream/OpTestCase.java
! test/java/util/stream/test/org/openjdk/tests/java/util/FillableStringTest.java
! test/java/util/stream/test/org/openjdk/tests/java/util/stream/GroupByOpTest.java
! test/java/util/stream/test/org/openjdk/tests/java/util/stream/SummaryStatisticsTest.java
! test/java/util/stream/test/org/openjdk/tests/java/util/stream/TabulatorsTest.java
! test/jdk/lambda/MethodReferenceTestInstanceMethod.java
! test/jdk/lambda/separate/TestHarness.java