diff -r 352d130c47c5 -r d7d932236fee test/tools/javac/defaultMethods/Neg10.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/defaultMethods/Neg10.java	Sun Nov 04 10:59:42 2012 +0000
@@ -0,0 +1,20 @@
+/*
+ * @test /nodynamiccopyright/
+ * @summary check that default overrides are properly type-checked
+ * @compile/fail/ref=Neg10.out -Werror -Xlint:unchecked -XDallowDefaultMethods -XDrawDiagnostics Neg10.java
+ */
+class Neg10 {
+    interface I<X extends Exception> {
+        default void m() throws X { }
+    }
+
+    static class C1 {
+        public void m() throws Exception { } //unchecked (throws) override
+    }
+
+    static class C2<Z extends Exception> extends C1 implements I<Z> { }
+
+    static class C3<Z extends Exception> implements I<Z> {
+        public void m() throws Exception { } //unchecked (throws) override
+    }
+}