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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/java.base/java/lang/ModuleHelper.java Normal file
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/*
* Copyright (c) 2015, 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.
*/
package java.lang;
import java.lang.module.ModuleDescriptor;
/**
* A helper class intended to be injected into java.lang using the
* java --patch-module option. The helper class provides access to package private
* methods in java.lang.Module.
*/
public final class ModuleHelper {
private ModuleHelper() { }
/**
* Creates a named module but without defining the module to the VM.
*/
public static Module newModule(ClassLoader loader, ModuleDescriptor descriptor) {
return new Module(loader, descriptor);
}
/**
* Updates module {@code from} to that it reads module {@code to} without
* notifying the VM.
*/
public static void addReadsNoSync(Module from, Module to) {
from.implAddReadsNoSync(to);
}
/**
* Updates module {@code from} so that it exports package {@code pkg}
* to module {@code to} but without notifying the VM. If {@code to} is
* {@code null} then the package is exported unconditionally.
*/
public static void addExportsNoSync(Module from, String pkg, Module to) {
if (to == null) {
from.implAddExportsNoSync(pkg);
} else {
from.implAddExportsNoSync(pkg, to);
}
}
}