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/MethodReference72.java

@@ -0,0 +1,20 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug 8016175
+ * @summary Add bottom-up type-checking support for unambiguous method references
+ * @compile/fail/ref=MethodReference72.out -XDrawDiagnostics MethodReference72.java
+ */
+class MethodReference72 {
+    interface F<X> {
+        @SuppressWarnings("unchecked")
+        void m(X... x);
+    }
+
+    void m1(Integer i) { }
+
+    <Z> void g(F<Z> f) { }
+
+    void test() {
+        g(this::m1); //bad method reference argument type
+    }
+}