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changeset 24114:2b760c6b0561

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missing checks in HotSpotMemoryAccessProviderImpl can cause VM assertions to fail - part 4 (JDK-8177673)
author Doug Simon <doug.simon@oracle.com>
date Sat, 01 Apr 2017 00:53:40 +0200
parents 8cf4cf3f9f2a
children 244adb543e36
files jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProviderImpl.java
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProviderImpl.java	Sat Apr 01 00:28:33 2017 +0200
+++ b/jvmci/jdk.vm.ci.hotspot/src/jdk/vm/ci/hotspot/HotSpotMemoryAccessProviderImpl.java	Sat Apr 01 00:53:40 2017 +0200
@@ -84,7 +84,7 @@
             int length = Array.getLength(object);
             long arrayEnd = headerSize + (sizeOfElement * length);
             boolean aligned = ((displacement - headerSize) % sizeOfElement) == 0;
-            if (displacement >= (arrayEnd - sizeOfElement) || (kind == JavaKind.Object && !aligned)) {
+            if (displacement > (arrayEnd - sizeOfElement) || (kind == JavaKind.Object && !aligned)) {
                 int index = (int) ((displacement - headerSize) / sizeOfElement);
                 throw new AssertionError("Unsafe array access: reading element of kind " + kind +
                                 " at offset " + displacement + " (index ~ " + index + ") in " +