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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/jtreg/runtime/modules/Visibility/PatchModuleVisibility.java Normal file
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/*
* Copyright (c) 2015, 2023, 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.
*/
/*
* @test
* @summary Ensure that a newly introduced java.base package placed within the --patch-module
* directory is considered part of the boot loader's visibility boundary
* @requires !(os.family == "windows")
* @requires vm.flagless
* @library /test/lib
* @modules java.base/jdk.internal.misc
* java.management
* @run driver PatchModuleVisibility
*/
import java.io.File;
import java.nio.file.Files;
import java.nio.file.Paths;
import jdk.test.lib.compiler.InMemoryJavaCompiler;
import jdk.test.lib.process.OutputAnalyzer;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.helpers.ClassFileInstaller;
public class PatchModuleVisibility {
public static void main(String[] args) throws Throwable {
String Vis2_B_src =
"package p2;" +
"public class Vis2_B {" +
" public void m() {" +
" System.out.println(\"In B's m()\");" +
" }" +
"}";
String Vis2_A_src =
"import p2.*;" +
"public class Vis2_A {" +
" public static void main(String args[]) throws Exception {" +
// Try loading a class within a newly introduced java.base
// package. Make sure the class can be found via --patch-module.
" try {" +
" p2.Vis2_B b = new p2.Vis2_B();" +
" if (b.getClass().getClassLoader() != null) {" +
" throw new RuntimeException(\"PatchModuleVisibility FAILED - class B " +
"should be loaded by boot class loader\\n\");" +
" }" +
" b.m();" +
" } catch (Throwable e) {" +
" throw new RuntimeException(\"PatchModuleVisibility FAILED - test " +
"should not throw an error or exception\\n\");" +
" }" +
" System.out.println(\"PatchModuleVisibility PASSED\\n\");" +
" }" +
"}";
ClassFileInstaller.writeClassToDisk("p2/Vis2_B",
InMemoryJavaCompiler.compile("p2.Vis2_B", Vis2_B_src), System.getProperty("test.classes"));
ClassFileInstaller.writeClassToDisk("p2/Vis2_B", "mods2/java.base");
ClassFileInstaller.writeClassToDisk("Vis2_A",
InMemoryJavaCompiler.compile("Vis2_A", Vis2_A_src), System.getProperty("test.classes"));
// Make sure the classes are actually being loaded from mods2
Files.delete(Paths.get(System.getProperty("test.classes") + File.separator +
"p2" + File.separator + "Vis2_B.class"));
new OutputAnalyzer(ProcessTools.createLimitedTestJavaProcessBuilder(
"--patch-module=java.base=mods2/java.base",
"--add-exports=java.base/p2=ALL-UNNAMED",
"Vis2_A")
.start()).shouldHaveExitValue(0);
}
}