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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/jdk/java/lang/ClassLoader/RecursiveSystemLoader.java Normal file
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/*
* Copyright (c) 2017, 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
* @bug 8187222
* @run main/othervm -Djava.system.class.loader=RecursiveSystemLoader RecursiveSystemLoader
* @summary Test for IllegalStateException if a custom system loader recursively calls getSystemClassLoader()
*/
public class RecursiveSystemLoader extends ClassLoader {
public static void main(String[] args) {
ClassLoader sys = ClassLoader.getSystemClassLoader();
if (!(sys instanceof RecursiveSystemLoader)) {
throw new RuntimeException("Unexpected system classloader: " + sys);
}
}
public RecursiveSystemLoader(ClassLoader classLoader) {
super("RecursiveSystemLoader", classLoader);
// Calling ClassLoader.getSystemClassLoader() before the VM is booted
// should throw an IllegalStateException.
try {
ClassLoader.getSystemClassLoader();
} catch(IllegalStateException ise) {
System.err.println("Caught expected exception:");
ise.printStackTrace();
return;
}
throw new RuntimeException("Expected IllegalStateException was not thrown.");
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
return super.loadClass(name);
}
}