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/MostSpecific32.java

@@ -0,0 +1,22 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8144767
+ * @summary Correct most-specific test when wildcards appear in functional interface type
+ * @compile/fail/ref=MostSpecific32.out -XDrawDiagnostics MostSpecific32.java
+ */
+class MostSpecific32 {
+
+    interface A<T> {}
+    interface B<T> extends A<T> {}
+
+    interface F1<S> { A<S> apply(); }
+    interface F2<S> { B<S> apply(); }
+
+    static void m1(F1<? extends Number> f1) {}
+    static void m1(F2<? extends Number> f2) {}
+
+    void test() {
+        m1(() -> null); // B<CAP ext Number> </: A<Number>
+    }
+
+}