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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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test/langtools/tools/javac/lambda/8258897/CaptureVariables.java Normal file
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/*
* Copyright (c) 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
* @bug 8258897
* @summary Checks translation of capturing local classes inside nested lambdas
* @run main CaptureVariables
*/
import java.util.function.Supplier;
public class CaptureVariables {
static Supplier<Integer> supplier1 = () -> {
boolean b0 = false;
int i0 = 6;
boolean b1 = false;
String s0 = "hello";
class Local {
int i = s0.length() + i0;
}
return ((Supplier<Integer>) () -> new Local().i).get();
};
static Supplier<Integer> supplier2 = () -> {
boolean b0 = false;
int i0 = 6;
boolean b1 = false;
String s0 = "hello";
class Local {
int i = s0.length() + i0;
}
return ((Supplier<Integer>) () -> ((Supplier<Integer>) () -> new Local().i).get()).get();
};
Supplier<Integer> supplier3 = () -> {
boolean b0 = false;
int i0 = 6;
boolean b1 = false;
String s0 = "hello";
class Local {
int i = s0.length() + i0;
}
return ((Supplier<Integer>) () -> new Local().i).get();
};
Supplier<Integer> supplier4 = () -> {
boolean b0 = false;
int i0 = 6;
boolean b1 = false;
String s0 = "hello";
class Local {
int i = s0.length() + i0;
}
return ((Supplier<Integer>) () -> ((Supplier<Integer>) () -> new Local().i).get()).get();
};
public static void main(String[] args) {
assert supplier1.get() == 11;
assert supplier2.get() == 11;
assert new CaptureVariables().supplier3.get() == 11;
assert new CaptureVariables().supplier4.get() == 11;
}
}