[8u] Request for approval: Backport of 8148752: Compiled StringBuilder code throws StringIndexOutOfBoundsException

[Tobias Hartmann]

Hi,

please approve and review the following backport to 8u.

8148752: Compiled StringBuilder code throws StringIndexOutOfBoundsException
https://bugs.openjdk.java.net/browse/JDK-8148752
http://mail.openjdk.java.net/pipermail/hotspot-compiler-dev/2016-February/021176.html
http://hg.openjdk.java.net/jdk9/hs-comp/hotspot/rev/4130663a3de8

The fix was pushed to hs-comp last week and nightly testing showed no problems.

Thanks,
Tobias