8029012: parameter_index for type annotation not updated after outer.this added

Summary: Fix javac's handling of type annotations when synthetic parameters are added
Reviewed-by: jjg, mcimadamore

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

@@ -2716,9 +2716,10 @@ public class Lower extends TreeTranslator {
                       syms.intType, tree.sym);
             ordParam.mods.flags |= SYNTHETIC; ordParam.sym.flags_field |= SYNTHETIC;
 
+            MethodSymbol m = tree.sym;
             tree.params = tree.params.prepend(ordParam).prepend(nameParam);
+            incrementParamTypeAnnoIndexes(m, 2);
 
-            MethodSymbol m = tree.sym;
             m.extraParams = m.extraParams.prepend(ordParam.sym);
             m.extraParams = m.extraParams.prepend(nameParam.sym);
             Type olderasure = m.erasure(types);
@@ -2741,6 +2742,17 @@ public class Lower extends TreeTranslator {
         }
     }
     //where
+    private void incrementParamTypeAnnoIndexes(MethodSymbol m,
+                                               int amount) {
+        for (final Attribute.TypeCompound anno : m.getRawTypeAttributes()) {
+            // Increment the parameter_index of any existing formal
+            // parameter annotations.
+            if (anno.position.type == TargetType.METHOD_FORMAL_PARAMETER) {
+                anno.position.parameter_index += amount;
+            }
+        }
+    }
+
     private void visitMethodDefInternal(JCMethodDecl tree) {
         if (tree.name == names.init &&
             (currentClass.isInner() || currentClass.isLocal())) {
@@ -2771,8 +2783,10 @@ public class Lower extends TreeTranslator {
             // Add this$n (if needed) in front of and free variables behind
             // constructor parameter list.
             tree.params = tree.params.appendList(fvdefs);
-            if (currentClass.hasOuterInstance())
+            if (currentClass.hasOuterInstance()) {
                 tree.params = tree.params.prepend(otdef);
+                incrementParamTypeAnnoIndexes(m, 1);
+            }
 
             // If this is an initial constructor, i.e., it does not start with
             // this(...), insert initializers for this$n and proxies

test/tools/javac/annotations/typeAnnotations/classfile/SyntheticParameters.java

+/*
+ * Copyright (c) 2014, 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 SyntheticParameters
+ * @summary Test generation of annotations on inner class parameters.
+ * @build ClassfileInspector
+ * @run main SyntheticParameters
+ */
+
+import java.io.*;
+import java.lang.annotation.*;
+
+import com.sun.tools.classfile.*;
+
+public class SyntheticParameters extends ClassfileInspector {
+
+    private static final String Inner_class = "SyntheticParameters$Inner.class";
+    private static final String Foo_class = "SyntheticParameters$Foo.class";
+    private static final Expected Inner_expected =
+        new Expected("SyntheticParameters$Inner",
+                     null,
+                     new ExpectedMethodTypeAnnotation[] {
+                         (ExpectedMethodTypeAnnotation)
+                         // Assert there is no annotation on the
+                         // this$0 parameter.
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "<init>",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             0).setParameterIndex(0).build(),
+                         (ExpectedMethodTypeAnnotation)
+                         // Assert there is an annotation on the
+                         // first parameter.
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "<init>",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             1).setParameterIndex(1).build(),
+                         (ExpectedMethodTypeAnnotation)
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "foo",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             1).setParameterIndex(0).build(),
+                         (ExpectedMethodTypeAnnotation)
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "foo",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             0).setParameterIndex(1).build()
+                     },
+                     null);
+    private static final Expected Foo_expected =
+        new Expected("SyntheticParameters$Foo",
+                     null,
+                     new ExpectedMethodTypeAnnotation[] {
+                         (ExpectedMethodTypeAnnotation)
+                         // Assert there is no annotation on the
+                         // $enum$name parameter.
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "<init>",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             0).setParameterIndex(0).build(),
+                         (ExpectedMethodTypeAnnotation)
+                         // Assert there is no annotation on the
+                         // $enum$ordinal parameter.
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "<init>",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             0).setParameterIndex(1).build(),
+                         (ExpectedMethodTypeAnnotation)
+                         // Assert there is an annotation on the
+                         // first parameter.
+                         new ExpectedMethodTypeAnnotation.Builder(
+                             "<init>",
+                             "A",
+                             TypeAnnotation.TargetType.METHOD_FORMAL_PARAMETER,
+                             false,
+                             1).setParameterIndex(2).build()
+                     },
+                     null);
+
+    public static void main(String... args) throws Exception {
+        new SyntheticParameters().run(
+            new ClassFile[] { getClassFile(Inner_class), getClassFile(Foo_class) },
+            new Expected[] { Inner_expected, Foo_expected });
+    }
+
+    public class Inner {
+        public Inner(@A int a) {}
+        public void foo(@A int a, int b) {}
+    }
+
+    public static enum Foo {
+        ONE(null);
+        Foo(@A Object a) {}
+    }
+}
+
+@Target({ElementType.TYPE_USE})
+@interface A {}

test/tools/javac/annotations/typeAnnotations/referenceinfos/Constructors.java

@@ -46,7 +46,7 @@ public class Constructors {
     @TADescriptions({
         @TADescription(annotation = "TA", type = METHOD_RETURN, genericLocation = {1, 0}),
         @TADescription(annotation = "TB", type = METHOD_RETURN, genericLocation = {1, 0}),
-        @TADescription(annotation = "TC", type = METHOD_FORMAL_PARAMETER, paramIndex = 0)
+        @TADescription(annotation = "TC", type = METHOD_FORMAL_PARAMETER, paramIndex = 1)
     })
     @TestClass("Test$Inner")
     public String innerClass() {
@@ -61,7 +61,7 @@ public class Constructors {
         @TADescription(annotation = "TB", type = METHOD_RETURN, genericLocation = {1, 0}),
         @TADescription(annotation = "TC", type = METHOD_RECEIVER),
         @TADescription(annotation = "TD", type = METHOD_RETURN, genericLocation = {1, 0}),
-        @TADescription(annotation = "TE", type = METHOD_FORMAL_PARAMETER, paramIndex = 0)
+        @TADescription(annotation = "TE", type = METHOD_FORMAL_PARAMETER, paramIndex = 1)
     })
     @TestClass("Test$Inner")
     public String innerClass2() {
@@ -77,7 +77,7 @@ public class Constructors {
         @TADescription(annotation = "TC", type = METHOD_RETURN, genericLocation = {1, 0, 1, 0}),
         @TADescription(annotation = "TD", type = METHOD_RECEIVER, genericLocation = {1, 0}),
         @TADescription(annotation = "TE", type = METHOD_RETURN, genericLocation = {1, 0, 1, 0}),
-        @TADescription(annotation = "TF", type = METHOD_FORMAL_PARAMETER, paramIndex = 0)
+        @TADescription(annotation = "TF", type = METHOD_FORMAL_PARAMETER, paramIndex = 1)
     })
     @TestClass("Outer$Middle$Inner")
     public String innerClass3() {