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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/funcInterfaces/NonSAM3.java Normal file
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/*
* @test /nodynamiccopyright/
* @bug 8003280
* @summary Add lambda tests
* This test is for identifying a non-SAM type: Having overloaded methods due to inheritance
* @compile/fail/ref=NonSAM3.out -XDrawDiagnostics NonSAM3.java Helper.java
*/
import java.util.Collection;
import java.util.List;
public class NonSAM3 {
void method() {
//all of the following will have compile error: "the target type of a lambda conversion has multiple non-overriding abstract methods"
FooBar fb = (Number n) -> 100;
FooBar fb2 = (Integer i) -> 100;
DE de = (List<Integer> list) -> 100;
DE de2 = (List<?> list) -> 100;
DE de3 = (List list) -> 100;
DE de4 = (Collection<Integer> collection) -> 100;
DE de5 = (Collection<?> collection) -> 100;
DE de6 = (Collection collection) -> 100;
}
}