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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/jdk/java/lang/invoke/lambda/LambdaReceiverBridge.java Normal file
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/*
* Copyright (c) 2014, 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 8035776
* @summary Consistent Lambda construction
*/
import java.lang.invoke.CallSite;
import java.lang.invoke.LambdaMetafactory;
import java.lang.invoke.LambdaConversionException;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.util.ArrayList;
import java.util.List;
import LambdaReceiver_anotherpkg.LambdaReceiver_A;
public class LambdaReceiverBridge extends LambdaReceiver_A {
interface IA {
int m(LambdaReceiver_A x);
}
static MethodHandles.Lookup l;
static MethodHandle h;
private static MethodType mt(Class<?> k) { return MethodType.methodType(k); }
private static MethodType mt(Class<?> k, Class<?> k2) { return MethodType.methodType(k, k2); }
private static void mf(List<String> errs, MethodType mts, MethodType mtf, boolean shouldWork) {
}
public static void main(String[] args) throws Throwable {
l = MethodHandles.lookup();
h = l.findVirtual(LambdaReceiver_A.class, "f", mt(int.class));
MethodType X = mt(int.class, LambdaReceiverBridge.class);
MethodType A = mt(int.class, LambdaReceiver_A.class);
MethodType mti = mt(IA.class);
CallSite cs = LambdaMetafactory.altMetafactory(l, "m", mti,X,h,X,
LambdaMetafactory.FLAG_BRIDGES, 1, A);
IA p = (IA)cs.dynamicInvoker().invoke();
LambdaReceiver_A lra = new LambdaReceiver_A();
try {
p.m(lra);
} catch (ClassCastException cce) {
return;
}
throw new AssertionError("CCE expected");
}
}