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undefect. CWE-407 — 63 sites patched across 27 ecosystems

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Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.
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russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/hotspot/gtest/oops/test_objArrayOop.cpp Normal file
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/*
* Copyright Amazon.com Inc. 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
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include "oops/objArrayOop.hpp"
#include "unittest.hpp"
#include "utilities/globalDefinitions.hpp"
TEST_VM(objArrayOop, osize) {
static const struct {
int objal; bool ccp; bool coops; bool coh; int result;
} x[] = {
// ObjAligInB, UseCCP, UseCoops, UseCOH, object size in heap words
#ifdef _LP64
{ 8, false, false, false, 4 }, // 20 byte header, 8 byte oops
{ 8, false, true, false, 3 }, // 20 byte header, 4 byte oops
{ 8, true, false, false, 3 }, // 16 byte header, 8 byte oops
{ 8, true, true, false, 3 }, // 16 byte header, 4 byte oops
{ 8, true, false, true, 3 }, // 12 byte header, 8 byte oops
{ 8, true, true, true, 2 }, // 12 byte header, 4 byte oops
{ 16, false, false, false, 4 }, // 20 byte header, 8 byte oops, 16-byte align
{ 16, false, true, false, 4 }, // 20 byte header, 4 byte oops, 16-byte align
{ 16, true, false, false, 4 }, // 16 byte header, 8 byte oops, 16-byte align
{ 16, true, true, false, 4 }, // 16 byte header, 4 byte oops, 16-byte align
{ 16, true, false, true, 4 }, // 12 byte header, 8 byte oops, 16-byte align
{ 16, true, true, true, 2 }, // 12 byte header, 4 byte oops, 16-byte align
{ 256, false, false, false, 32 }, // 20 byte header, 8 byte oops, 256-byte align
{ 256, false, true, false, 32 }, // 20 byte header, 4 byte oops, 256-byte align
{ 256, true, false, false, 32 }, // 16 byte header, 8 byte oops, 256-byte align
{ 256, true, true, false, 32 }, // 16 byte header, 4 byte oops, 256-byte align
{ 256, true, false, true, 32 }, // 12 byte header, 8 byte oops, 256-byte align
{ 256, true, true, true, 32 }, // 12 byte header, 4 byte oops, 256-byte align
#else
{ 8, false, false, false, 4 }, // 12 byte header, 4 byte oops, wordsize 4
#endif
{ -1, false, false, false, -1 }
};
for (int i = 0; x[i].result != -1; i++) {
if (x[i].objal == (int)ObjectAlignmentInBytes && x[i].ccp == UseCompressedClassPointers && x[i].coops == UseCompressedOops &&
x[i].coh == UseCompactObjectHeaders) {
EXPECT_EQ(objArrayOopDesc::object_size(1), (size_t)x[i].result);
}
}
}