8027281: Incorrect invokespecial generated for JCK lang EXPR/expr636/expr63602m* tests

When invoking interface default method via a superclass, use the direct superclass in the reference.

Reviewed-by: vromero, dlsmith, jjg

langtools/src/share/classes/com/sun/tools/javac/comp/Lower.java

@@ -1378,7 +1378,11 @@ public class Lower extends TreeTranslator {
             ref = make.Ident(sym);
             args = make.Idents(md.params);
         } else {
-            ref = make.Select(make.Ident(md.params.head), sym);
+            Symbol msym = sym;
+            if (sym.owner.isInterface()) {
+                msym = msym.clone(types.supertype(accessor.owner.type).tsym);
+            }
+            ref = make.Select(make.Ident(md.params.head), msym);
             args = make.Idents(md.params.tail);
         }
         JCStatement stat;          // The statement accessing the private symbol.

langtools/test/tools/javac/defaultMethods/super/TestDirectSuperInterfaceInvoke.java

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2013, 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 8027281
+ * @summary As per JVMS 4.9.2, invokespecial can only refer to direct superinterfaces
+ * @compile TestDirectSuperInterfaceInvoke.java
+ * @run main TestDirectSuperInterfaceInvoke
+ */
+
+import java.io.File;
+import com.sun.tools.classfile.Attribute;
+import com.sun.tools.classfile.ClassFile;
+import com.sun.tools.classfile.Code_attribute;
+import com.sun.tools.classfile.ConstantPool.CPRefInfo;
+import com.sun.tools.classfile.Instruction;
+import com.sun.tools.classfile.Method;
+import com.sun.tools.classfile.Opcode;
+
+interface BaseInterface {
+    public default int testedMethod(){ return 1; }
+}
+
+interface IntermediateInterface extends BaseInterface {
+}
+
+interface TestInterface extends IntermediateInterface {
+    public default void test() {
+        IntermediateInterface.super.testedMethod();
+    }
+}
+
+abstract class BaseClass implements BaseInterface { }
+
+class TestClass extends BaseClass implements BaseInterface {
+    public int testedMethod() {return 9;}
+    public void test() {
+        if (super.testedMethod() != 1)
+            throw new IllegalStateException();
+        if (TestClass.super.testedMethod() != 1)
+            throw new IllegalStateException();
+        new Runnable() {
+            public void run() {
+                if (TestClass.super.testedMethod() != 1)
+                    throw new IllegalStateException();
+            }
+        }.run();
+    }
+}
+
+public class TestDirectSuperInterfaceInvoke {
+    public static void main(String... args) throws Exception {
+        new TestDirectSuperInterfaceInvoke().run();
+    }
+
+    public void run() throws Exception {
+        new TestClass().test();
+        verifyDefaultBody("TestClass.class");
+        new TestInterface() {}.test();
+        verifyDefaultBody("TestInterface.class");
+    }
+
+    void verifyDefaultBody(String classFile) {
+        String workDir = System.getProperty("test.classes");
+        File file = new File(workDir, classFile);
+        try {
+            final ClassFile cf = ClassFile.read(file);
+            for (Method m : cf.methods) {
+                Code_attribute codeAttr = (Code_attribute)m.attributes.get(Attribute.Code);
+                for (Instruction instr : codeAttr.getInstructions()) {
+                    if (instr.getOpcode() == Opcode.INVOKESPECIAL) {
+                        int pc_index = instr.getShort(1);
+                        CPRefInfo ref = (CPRefInfo)cf.constant_pool.get(pc_index);
+                        String className = ref.getClassName();
+                        if (className.equals("BaseInterface"))
+                            throw new IllegalStateException("Must not directly refer to TestedInterface");
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+            throw new Error("error reading " + file +": " + e);
+        }
+    }
+
+}