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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
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106
test/hotspot/gtest/runtime/test_classLoader.cpp Normal file
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/*
* Copyright (c) 2016, 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/classLoader.hpp"
#include "classfile/symbolTable.hpp"
#include "memory/resourceArea.hpp"
#include "unittest.hpp"
// Tests ClassLoader::package_from_class_name()
TEST_VM(ClassLoader, null_class_name) {
bool bad_class_name = false;
TempNewSymbol retval = ClassLoader::package_from_class_name(nullptr, &bad_class_name);
ASSERT_TRUE(bad_class_name) << "Function did not set bad_class_name with null class name";
ASSERT_TRUE(retval == nullptr) << "Wrong package for null class name pointer";
}
TEST_VM(ClassLoader, empty_class_name) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_TRUE(retval == nullptr) << "Wrong package for empty string";
}
TEST_VM(ClassLoader, no_slash) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("L");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_FALSE(bad_class_name) << "Function set bad_class_name with empty package";
ASSERT_TRUE(retval == nullptr) << "Wrong package for class with no slashes";
}
TEST_VM(ClassLoader, just_slash) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("/");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_TRUE(bad_class_name) << "Function did not set bad_class_name with package of length 0";
ASSERT_TRUE(retval == nullptr) << "Wrong package for class with just slash";
}
TEST_VM(ClassLoader, multiple_slashes) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("///");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_FALSE(bad_class_name) << "Function set bad_class_name with slashes package";
ASSERT_TRUE(retval->equals("//")) << "Wrong package for class with just slashes";
}
TEST_VM(ClassLoader, standard_case_1) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("package/class");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_FALSE(bad_class_name) << "Function set bad_class_name for valid package";
ASSERT_TRUE(retval->equals("package")) << "Wrong package for class with one slash";
}
TEST_VM(ClassLoader, standard_case_2) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("package/folder/class");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_FALSE(bad_class_name) << "Function set bad_class_name for valid package";
ASSERT_TRUE(retval->equals("package/folder")) << "Wrong package for class with multiple slashes";
}
TEST_VM(ClassLoader, class_array) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("[package/class");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_FALSE(bad_class_name) << "Function set bad_class_name with class array";
ASSERT_TRUE(retval->equals("package")) << "Wrong package for class with leading bracket";
}
TEST_VM(ClassLoader, class_multiarray) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("[[package/class");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_FALSE(bad_class_name) << "Function set bad_class_name with class array";
ASSERT_TRUE(retval->equals("package")) << "Wrong package for class with leading bracket";
}
TEST_VM(ClassLoader, class_object_array) {
bool bad_class_name = false;
TempNewSymbol name = SymbolTable::new_symbol("[Lpackage/class");
TempNewSymbol retval = ClassLoader::package_from_class_name(name, &bad_class_name);
ASSERT_TRUE(bad_class_name) << "Function did not set bad_class_name with array of class objects";
ASSERT_TRUE(retval == nullptr) << "Wrong package for class with leading '[L'";
}