git: openjdk/jdk17u: master: 2 new changesets

[Stefan Karlsson]

Changeset: c47e2330
Author:    Alex Kasko <akasko at openjdk.org>
Date:      2021-11-23 12:10:48 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/c47e23303b8d26f9beb7f903137f8eb2bde768fb

8140241: (fc) Data transfer from FileChannel to itself causes hang in case of overlap

Backport-of: 428d51694f56788f89e8df100a74cbadd369ffa6

! src/java.base/share/classes/sun/nio/ch/FileChannelImpl.java
! src/java.base/share/classes/sun/nio/ch/FileDispatcher.java
! src/java.base/unix/classes/sun/nio/ch/FileDispatcherImpl.java
! src/java.base/unix/native/libnio/ch/FileDispatcherImpl.c
! src/java.base/windows/classes/sun/nio/ch/FileDispatcherImpl.java
+ test/jdk/java/nio/channels/FileChannel/TransferOverlappedFileChannel.java

Changeset: ed45df2e
Author:    Stefan Karlsson <stefank at openjdk.org>
Date:      2021-11-23 12:36:57 +0000
URL:       https://git.openjdk.java.net/jdk17u/commit/ed45df2ea7e33f943b8efb2c581c581686c06e88

8277212: GC accidentally cleans valid megamorphic vtable inline caches

Backport-of: 976c2bb05611cdc7b11b0918aaf50ff693507aae

! src/hotspot/share/code/compiledMethod.cpp