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8246729: MappedByteBuffer.force() throws IndexOutOfBoundsException

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Reviewed-by: psandoz, alanb
This commit is contained in:
Brian Burkhalter 2020-06-08 13:15:59 -07:00
parent 63ade9c49c
commit 1786701011
2 changed files with 35 additions and 15 deletions
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15
src/java.base/share/classes/java/nio/MappedByteBuffer.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2000, 2020, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@ -223,11 +223,9 @@ public abstract class MappedByteBuffer
if (fd == null) {
return this;
}
if (isSync) {
return force(0, limit());
}
if ((address != 0) && (capacity() != 0)) {
return force(0, capacity());
int limit = limit();
if (isSync || ((address != 0) && (limit != 0))) {
return force(0, limit);
}
return this;
}
@ -278,9 +276,10 @@ public abstract class MappedByteBuffer
if (fd == null) {
return this;
}
if ((address != 0) && (limit() != 0)) {
int limit = limit();
if ((address != 0) && (limit != 0)) {
// check inputs
Objects.checkFromIndexSize(index, length, limit());
Objects.checkFromIndexSize(index, length, limit);
MappedMemoryUtils.force(fd, address, isSync, index, length);
}
return this;