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/defaultMethods/Neg09.java

@@ -0,0 +1,22 @@
+/* @test /nodynamiccopyright/
+ * @bug 7192246
+ * @summary check that default overrides are properly type-checked
+ * @compile/fail/ref=Neg09.out -Werror -Xlint:unchecked -XDrawDiagnostics Neg09.java
+ */
+import java.util.List;
+
+class Neg09 {
+    interface I {
+        default List<String> m() { return null; }
+    }
+
+    static class C1 {
+        public List m() { return null; } //unchecked (return) override
+    }
+
+    static class C2 extends C1 implements I { }
+
+    static class C3 implements I {
+        public List m() { return null; } //unchecked (return) override
+    }
+}