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/MostSpecific13.java

@@ -0,0 +1,21 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8034223
+ * @summary Most-specific testing with inference variables in function parameter types
+ * @compile/fail/ref=MostSpecific13.out -XDrawDiagnostics MostSpecific13.java
+ */
+class MostSpecific13 {
+
+    interface UnaryOp<T> { T apply(T arg); }
+    interface IntegerToNumber { Number apply(Integer arg); }
+
+    <T> void m(UnaryOp<T> f) {}
+    void m(IntegerToNumber f) {}
+
+    void test() {
+        m((Integer i) -> i); // error
+        m(this::id); // error
+    }
+
+    Integer id(Integer arg) { return arg; }
+}