--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/generics/inference/6938454/T6938454a.java	Mon Dec 15 21:23:19 2014 +0400
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2010 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * @test
+ * @bug 6938454
+ *
+ * @summary Unable to determine generic type in program that compiles under Java 6
+ * @author mcimadamore
+ * @compile T6938454a.java
+ *
+ */
+
+class T6938454a {
+
+    static abstract class A { }
+
+    static class B extends A { }
+
+    B getB(B b) {
+        return makeA(b);
+    }
+
+    <X extends A, Y extends X> Y makeA(X x) {
+        return (Y)new B();
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/tools/javac/generics/inference/6938454/T6938454b.java	Mon Dec 15 21:23:19 2014 +0400
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2010 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+import java.util.List;
+
+/*
+ * @test
+ * @bug 6938454
+ *
+ * @summary Unable to determine generic type in program that compiles under Java 6
+ * @author mcimadamore
+ * @compile T6938454b.java
+ *
+ */
+
+class T6938454b {
+
+    static interface A {}
+    static interface B extends A {}
+    static class C implements B {}
+
+    <T, R extends T, S extends R> List<R> m(List<T> l, S s) {
+        return null;
+    }
+
+    List<B> test(List<A> la) {
+        return m(la, new C());
+    }
+}