git: openjdk/mobile: 8244936: Reduce JNI overhead of accessing FileDescriptor

[duke]

Changeset: 168cdcf6
Author:    Claes Redestad <redestad at openjdk.org>
Date:      2020-05-13 22:25:14 +0000
URL:       https://git.openjdk.java.net/mobile/commit/168cdcf6

8244936: Reduce JNI overhead of accessing FileDescriptor

Reviewed-by: rriggs, alanb

! src/java.base/share/native/libjava/FileInputStream.c
! src/java.base/share/native/libjava/RandomAccessFile.c
! src/java.base/share/native/libjava/io_util.c
! src/java.base/unix/native/libjava/io_util_md.c
! src/java.base/unix/native/libjava/io_util_md.h
! src/java.base/windows/native/libjava/io_util_md.c
! src/java.base/windows/native/libjava/io_util_md.h
! test/micro/org/openjdk/bench/java/io/RandomAccessRead.java