7148556: Implementing a generic interface causes a public clone() to become inaccessible

Implementation of Resolve.isOverriddenIn() should distinguish between classes/interfaces

Reviewed-by: jjg

langtools/src/share/classes/com/sun/tools/javac/code/Symbol.java

@@ -1235,7 +1235,7 @@ public abstract class Symbol implements Element {
             // if origin is derived from a raw type, we might have missed
             // an implementation because we do not know enough about instantiations.
             // in this case continue with the supertype as origin.
-            if (types.isDerivedRaw(origin.type))
+            if (types.isDerivedRaw(origin.type) && !origin.isInterface())
                 return implementation(types.supertype(origin.type).tsym, types, checkResult);
             else
                 return null;

langtools/test/tools/javac/generics/rawOverride/T7148556.java

@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test
+ * @bug 7148556
+ * @summary Implementing a generic interface causes a public clone() to become inaccessible
+ * @compile T7148556.java
+ */
+
+class T7148556 {
+
+    interface A extends Cloneable {
+       public Object clone();
+    }
+
+    interface B extends A, java.util.List { }
+
+    void test(B b) {
+        b.clone();
+    }
+}