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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.
This commit is contained in:
russell@unturf.com 2026-03-26 17:11:57 -04:00
commit 0a580b313d
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test/hotspot/gtest/runtime/test_classPrinter.cpp Normal file
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/*
* Copyright (c) 2022, 2025, 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
* 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 "classfile/classPrinter.hpp"
#include "memory/resourceArea.hpp"
#include "runtime/interfaceSupport.inline.hpp"
#include "runtime/javaThread.hpp"
#include "utilities/ostream.hpp"
#include "unittest.hpp"
using testing::ContainsRegex;
using testing::HasSubstr;
TEST_VM(ClassPrinter, print_classes) {
JavaThread* THREAD = JavaThread::current();
ThreadInVMfromNative invm(THREAD);
ResourceMark rm;
stringStream s1;
ClassPrinter::print_classes("java/lang/Object", 0x03, &s1);
const char* o1 = s1.freeze();
ASSERT_THAT(o1, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
ASSERT_THAT(o1, HasSubstr("method wait : (J)V")) << "must find java/lang/Object::wait";
ASSERT_THAT(o1, HasSubstr("method finalize : ()V\n 0 return")) << "must find java/lang/Object::finalize and disasm";
// "." should also work as separator in class name
stringStream s2;
ClassPrinter::print_classes("java.lang.Object", 0x03, &s2);
const char* o2 = s2.freeze();
ASSERT_THAT(o2, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
// 0x20 is PRINT_CLASS_DETAILS
stringStream s3;
ClassPrinter::print_classes("java.lang.Integer", 0x20, &s3);
const char* o3 = s3.freeze();
ASSERT_THAT(o3, HasSubstr("class: java/lang/Integer mirror:")) << "must find java/lang/Integer";
ASSERT_THAT(o3, HasSubstr("InstanceKlass: java.lang.Integer {0x")) << "must print InstanceKlass";
ASSERT_THAT(o3, HasSubstr("Java mirror oop for java/lang/Integer:")) << "must print mirror oop";
#if GTEST_USES_POSIX_RE
// Complex regex not available on Windows
ASSERT_THAT(o3, ContainsRegex("public static final 'MIN_VALUE' 'I'.* -2147483648 [(]0x80000000[)]")) << "must print static fields";
#endif
}
TEST_VM(ClassPrinter, print_methods) {
JavaThread* THREAD = JavaThread::current();
ThreadInVMfromNative invm(THREAD);
ResourceMark rm;
stringStream s1;
ClassPrinter::print_methods("*ang/Object*", "wait", 0x1, &s1);
const char* o1 = s1.freeze();
ASSERT_THAT(o1, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
ASSERT_THAT(o1, HasSubstr("method wait : (J)V")) << "must find java/lang/Object::wait(long)";
ASSERT_THAT(o1, HasSubstr("method wait : ()V")) << "must find java/lang/Object::wait()";
ASSERT_THAT(o1, Not(HasSubstr("method finalize : ()V"))) << "must not find java/lang/Object::finalize";
stringStream s2;
ClassPrinter::print_methods("j*ang/Object*", "wait:(*J*)V", 0x1, &s2);
const char* o2 = s2.freeze();
ASSERT_THAT(o2, HasSubstr("class: java/lang/Object mirror:")) << "must find java/lang/Object";
ASSERT_THAT(o2, HasSubstr("method wait : (J)V")) << "must find java/lang/Object::wait(long)";
ASSERT_THAT(o2, HasSubstr("method wait : (JI)V")) << "must find java/lang/Object::wait(long,int)";
ASSERT_THAT(o2, Not(HasSubstr("method wait : ()V"))) << "must not find java/lang/Object::wait()";
// 0x02 is PRINT_BYTECODE
// 0x04 is PRINT_BYTECODE_ADDRESS
// 0x40 is PRINT_METHOD_DETAILS
stringStream s3;
ClassPrinter::print_methods("java.lang.Object", "wait:()V", 0x46, &s3);
const char* o3 = s3.freeze();
ASSERT_THAT(o3, HasSubstr("method wait : ()V")) << "must find java/lang/Object::wait()";
#ifndef PRODUCT
// PRINT_METHOD_DETAILS -- available only in debug builds
ASSERT_THAT(o3, HasSubstr("{method}")) << "must print Method metadata";
#if GTEST_USES_POSIX_RE
// Complex regex not available on Windows
ASSERT_THAT(o3, ContainsRegex("method holder:.*'java/lang/Object'")) << "must print Method metadata details";
ASSERT_THAT(o3, ContainsRegex("name: *'wait'")) << "must print Method metadata details";
#endif
#endif
#if GTEST_USES_POSIX_RE
// Bytecodes: we should have at least one 'return' bytecide for Object.wait()
// The print out should look like this:
// 0x000000004adf73ad 5 return
ASSERT_THAT(o3, ContainsRegex("0x[0-9a-f]+ +[0-9]+ +return")) << "must print return bytecode";
#endif
}