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/Neg02.java

@@ -0,0 +1,26 @@
+/* @test /nodynamiccopyright/
+ * @bug 7192246
+ * @summary check that ill-formed MI hierarchies do not compile
+ * @compile/fail/ref=Neg02.out -XDrawDiagnostics Neg02.java
+ */
+
+class Neg02 {
+     interface A {
+         default void m() { Neg02.impl(this); }
+     }
+
+     interface B {
+         default void m() { Neg02.impl(this); }
+     }
+
+     static class X implements A, B { } //error
+
+     void test(X x) {
+         x.m();
+         ((A)x).m();
+         ((B)x).m();
+     }
+
+     static void impl(A a) { }
+     static void impl(B b) { }
+}