diff -r 000000000000 -r 959103a6100f test/tools/javac/OverrideChecks/6400189/T6400189b.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/OverrideChecks/6400189/T6400189b.java	Wed Apr 27 01:34:52 2016 +0800
@@ -0,0 +1,26 @@
+/*
+ * @test /nodynamiccopyright/
+ * @bug     6400189
+ * @summary raw types and inference
+ * @author  mcimadamore
+ * @compile/fail/ref=T6400189b.out T6400189b.java -Xlint:unchecked -XDrawDiagnostics
+ */
+
+class T6400189b<T> {
+
+    static class A {
+        <T> T m(T6400189b<T> x) {
+            return null;
+        }
+    }
+
+    static class B<T> extends A {
+        <T> T m(T6400189b<T> x) {
+            return null;
+        }
+    }
+
+    void test(B b) {
+        Integer i = b.m(new T6400189b<Integer>());
+    }
+}