8143647: Javac compiles method reference that allows results in an IllegalAccessError

Summary: Lambda implementation method synthesized by javac should not mention inaccessible types.
Reviewed-by: mcimadamore

src/share/classes/com/sun/tools/javac/comp/LambdaToMethod.java

@@ -860,7 +860,7 @@ public class LambdaToMethod extends TreeTranslator {
         private JCExpression makeReceiver(VarSymbol rcvr) {
             if (rcvr == null) return null;
             JCExpression rcvrExpr = make.Ident(rcvr);
-            Type rcvrType = tree.sym.enclClass().type;
+            Type rcvrType = tree.ownerAccessible ? tree.sym.enclClass().type : tree.expr.type;
             if (rcvrType == syms.arrayClass.type) {
                 // Map the receiver type to the actually type, not just "array"
                 rcvrType = tree.getQualifierExpression().type;

test/tools/javac/lambda/MethodReference75.java

+/*
+ * Copyright (c) 2015, 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 8143647
+ * @summary Javac compiles method reference that allows results in an IllegalAccessError
+ * @run main MethodReference75
+ */
+
+import pkg.PublicDerived8143647;
+
+public class MethodReference75 {
+    public static void main(String[] args) {
+        if (java.util.Arrays
+                .asList(new PublicDerived8143647())
+                .stream()
+                .map(PublicDerived8143647::getX)
+                .findFirst()
+                .get()
+                .equals("PackagePrivateBase"))
+            System.out.println("OK");
+        else
+            throw new AssertionError("Unexpected output");
+    }
+}

test/tools/javac/lambda/pkg/PublicDerived8143647.java

+/*
+ * Copyright (c) 2015, 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.
+ */
+
+package pkg;
+
+abstract class PackagePrivateBase8143647 {
+    public String getX() {
+        return "PackagePrivateBase";
+    }
+}
+
+public class PublicDerived8143647 extends PackagePrivateBase8143647 {
+}