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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
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54
test/langtools/tools/javac/implicitThis/WhichImplicitThis7.java Normal file
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/*
* Copyright (c) 2002, 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 4714403
* @summary private members in a superclass should not hide members from the enclosing scope
*
* @compile WhichImplicitThis7.java
*/
/*
The following is required to compile without error. javac rejects it,
because javac thinks the i is referring to the current class which has
not been initialized yet. But C has no member i - private members are
not inherited. i therefore refers to the one from the enclosing scope.
*/
class WhichImplicitThis7 {
static private int i;
static class B extends WhichImplicitThis7 {
private int i;
}
class C extends B {
C(int j) {}
C() {
// although c is a subclass of WhichImplicitThis7, it does
// not inherit i because i is private. So i in the
// following refers to the one from the enclosing class,
// which is allowed here because it is static
this(i);
}
}
}