undefect. CWE-407 — 63 sites patched across 27 ecosystems

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.

test/langtools/tools/javac/lambda/MostSpecific28.java

@@ -0,0 +1,19 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8143852
+ * @summary Test that functional interface method parameter types are equal, even for an explicit lambda
+ * @compile/fail/ref=MostSpecific28.out -XDrawDiagnostics MostSpecific28.java
+ */
+class MostSpecific28 {
+
+    interface Pred<T> { boolean test(T arg); }
+    interface Fun<T,R> { R apply(T arg); }
+
+    static void m1(Pred<? super Integer> f) {}
+    static void m1(Fun<Number, Boolean> f) {}
+
+    void test() {
+        m1((Number n) -> true);
+    }
+
+}