RFR 8155794 Move Objects.checkIndex BiFunction accepting methods to an internal package

[Paul Sandoz]

Hi,

Please review:

  http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8155794-checkIndex-bifunc-internal-jdk/webrev/
  http://cr.openjdk.java.net/~psandoz/jdk9/JDK-8155794-checkIndex-bifunc-internal-hotspot/webrev/

This patch is based on that for 8155258 (VarHandle impl improvements) [1] sent previously.

The hotspot changes are really small. Likewise for the 8155258 changes is there is precedent in such cases to push through jdk9-dev rather than hs?

CCC reviewers strongly indicated for the advanced methods that can customise the exceptions: "You aren't gonna need it”.

For expediency I propose to move such methods to an internal class jdk.internal.util.Preconditions. I would still like to sweep through java.base and leverage these methods while preserving exception reporting where possible.

The hotspot changes are just for renaming of the intrinsic method signatures. Since the intrinsic method is now internal i have added an @ForceInline on the corresponding public method, given the potential for this to be used in performance sensitive code.


JPRT core and hotspot tests pass.

Paul.

[1] http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-May/040740.html <http://mail.openjdk.java.net/pipermail/core-libs-dev/2016-May/040740.html>