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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/jtreg/runtime/modules/AccessCheck/UmodDiffCL_Umod.java Normal file
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/*
* Copyright (c) 2015, 2021, 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 class p1.c1 defined in an unnamed module tries to access p2.c2
* defined in an unnamed module. Access allowed since unnamed module
* can read unnamed module even when class p1.c1 is loaded by
* a different loader than p2.c2.
* @library /test/lib
* @compile myloaders/MyDiffClassLoader.java
* @compile p2/c2.java
* @compile p1/c1.java
* @run main/othervm -Xbootclasspath/a:. UmodDiffCL_Umod
*/
import myloaders.MyDiffClassLoader;
// class p1.c1 defined in an unnamed module tries to access p2.c2 defined in
// in an unnamed module.
// Access allowed since unnamed module can read unnamed module even when
// class p1.c1 is loaded by a different loader than p2.c2
// and all packages in an unnamed module are exported unqualifiedly.
public class UmodDiffCL_Umod {
public static void main(String args[]) throws Throwable {
Class p1_c1_class = MyDiffClassLoader.loader1.loadClass("p1.c1");
try {
p1_c1_class.newInstance();
} catch (IllegalAccessError e) {
throw new RuntimeException("Test Failed, unnamed module can access unnamed module");
}
}
}