hg: jdk9/hs-rt/hotspot: 6664815: Eliminate redundant memcpy operation in jni_GetStringUTFRegion

[mikael.gerdin at oracle.com]

Changeset: 3117c892d6a7
Author:    mgerdin
Date:      2014-04-03 14:54 +0200
URL:       http://hg.openjdk.java.net/jdk9/hs-rt/hotspot/rev/3117c892d6a7

6664815: Eliminate redundant memcpy operation in jni_GetStringUTFRegion
Summary: Added support for target buffer in as_utf8_string(), minor refactoring of as_utf8 and added some internal VM testing
Reviewed-by: coleenp, dsimms, sla, dholmes
Contributed-by: marcus.larsson at oracle.com

! src/share/vm/classfile/javaClasses.cpp
! src/share/vm/classfile/javaClasses.hpp
! src/share/vm/prims/jni.cpp
! src/share/vm/utilities/utf8.cpp