8007803: Implement javax.lang.model API for Type Annotations

Reviewed-by: darcy

src/share/classes/com/sun/tools/javac/code/Printer.java

@@ -311,9 +311,9 @@ public abstract class Printer implements Type.Visitor<String, Locale>, Symbol.Vi
             }
             if (args.head.unannotatedType().getKind() == TypeKind.ARRAY) {
                 buf.append(visit(((ArrayType) args.head.unannotatedType()).elemtype, locale));
-                if (args.head.getAnnotations().nonEmpty()) {
+                if (args.head.getAnnotationMirrors().nonEmpty()) {
                     buf.append(' ');
-                    buf.append(args.head.getAnnotations());
+                    buf.append(args.head.getAnnotationMirrors());
                     buf.append(' ');
                 }
                 buf.append("...");

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

@@ -483,12 +483,12 @@ public abstract class Symbol implements Element {
      */
     @Deprecated
     public <A extends java.lang.annotation.Annotation> A getAnnotation(Class<A> annoType) {
-        return JavacElements.getAnnotation(this, annoType);
+        return JavacAnnoConstructs.getAnnotation(this, annoType);
     }
 
     // This method is part of the javax.lang.model API, do not use this in javac code.
     public <A extends java.lang.annotation.Annotation> A[] getAnnotationsByType(Class<A> annoType) {
-        return JavacElements.getAnnotations(this, annoType);
+        return JavacAnnoConstructs.getAnnotations(this, annoType);
     }
 
     // TODO: getEnclosedElements should return a javac List, fix in FilteredMemberList
@@ -935,11 +935,12 @@ public abstract class Symbol implements Element {
         }
 
         /**
-         * @deprecated this method should never be used by javac internally.
+         * Since this method works in terms of the runtime representation
+         * of annotations, it should never be used by javac internally.
          */
-        @Override @Deprecated
+        @Override
         public <A extends java.lang.annotation.Annotation> A getAnnotation(Class<A> annoType) {
-            return JavacElements.getAnnotation(this, annoType);
+            return JavacAnnoConstructs.getAnnotation(this, annoType);
         }
 
         public <R, P> R accept(ElementVisitor<R, P> v, P p) {
@@ -1444,6 +1445,10 @@ public abstract class Symbol implements Element {
             return v.visitMethodSymbol(this, p);
         }
 
+        public Type getReceiverType() {
+            return asType().getReceiverType();
+        }
+
         public Type getReturnType() {
             return asType().getReturnType();
         }

src/share/classes/com/sun/tools/javac/code/Type.java

@@ -25,6 +25,9 @@
 
 package com.sun.tools.javac.code;
 
+import com.sun.tools.javac.model.JavacAnnoConstructs;
+import com.sun.tools.javac.model.JavacTypes;
+import java.lang.annotation.Annotation;
 import java.util.Collections;
 import java.util.EnumMap;
 import java.util.EnumSet;
@@ -258,6 +261,23 @@ public class Type implements PrimitiveType {
         return this;
     }
 
+    @Override
+    public List<? extends Attribute.TypeCompound> getAnnotationMirrors() {
+        return List.nil();
+    }
+
+    @Override
+    public <A extends Annotation> A getAnnotation(Class<A> annotationType) {
+        return null;
+    }
+
+    @Override
+    public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType) {
+        @SuppressWarnings("unchecked")
+        A[] tmp = (A[]) java.lang.reflect.Array.newInstance(annotationType, 0);
+        return tmp;
+    }
+
     /** Return the base types of a list of types.
      */
     public static List<Type> baseTypes(List<Type> ts) {
@@ -354,8 +374,8 @@ public class Type implements PrimitiveType {
         }
         if (args.head.unannotatedType().tag == ARRAY) {
             buf.append(((ArrayType)args.head.unannotatedType()).elemtype);
-            if (args.head.getAnnotations().nonEmpty()) {
-                buf.append(args.head.getAnnotations());
+            if (args.head.getAnnotationMirrors().nonEmpty()) {
+                buf.append(args.head.getAnnotationMirrors());
             }
             buf.append("...");
         } else {
@@ -366,7 +386,6 @@ public class Type implements PrimitiveType {
 
     /** Access methods.
      */
-    public List<? extends AnnotationMirror> getAnnotations() { return List.nil(); }
     public List<Type>        getTypeArguments()  { return List.nil(); }
     public Type              getEnclosingType()  { return null; }
     public List<Type>        getParameterTypes() { return List.nil(); }
@@ -1581,13 +1600,23 @@ public class Type implements PrimitiveType {
         }
 
         @Override
-        public TypeKind getKind() {
-            return underlyingType.getKind();
+        public List<? extends Attribute.TypeCompound> getAnnotationMirrors() {
+            return typeAnnotations;
         }
 
         @Override
-        public List<? extends AnnotationMirror> getAnnotations() {
-            return typeAnnotations;
+        public <A extends Annotation> A getAnnotation(Class<A> annotationType) {
+            return JavacAnnoConstructs.getAnnotation(this, annotationType);
+        }
+
+        @Override
+        public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType) {
+            return JavacAnnoConstructs.getAnnotationsByType(this, annotationType);
+        }
+
+        @Override
+        public TypeKind getKind() {
+            return underlyingType.getKind();
         }
 
         @Override

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

@@ -4279,7 +4279,7 @@ public class Attr extends JCTree.Visitor {
             validateAnnotatedType(errtree, type);
             if (type.tsym != null &&
                     type.tsym.isStatic() &&
-                    type.getAnnotations().nonEmpty()) {
+                    type.getAnnotationMirrors().nonEmpty()) {
                     // Enclosing static classes cannot have type annotations.
                 log.error(errtree.pos(), "cant.annotate.static.class");
             }

src/share/classes/com/sun/tools/javac/model/AnnotationProxyMaker.java

 /*
- * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 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
@@ -273,7 +273,7 @@ public class AnnotationProxyMaker {
 
     /**
      * ExceptionProxy for MirroredTypeException.
-     * The toString, hashCode, and equals methods foward to the underlying
+     * The toString, hashCode, and equals methods forward to the underlying
      * type.
      */
     private static final class MirroredTypeExceptionProxy extends ExceptionProxy {

src/share/classes/com/sun/tools/javac/model/JavacAnnoConstructs.java

+/*
+ * Copyright (c) 2005, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 com.sun.tools.javac.model;
+
+import java.lang.annotation.Annotation;
+import java.lang.annotation.Inherited;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+
+import com.sun.tools.javac.code.Attribute;
+import com.sun.tools.javac.code.Kinds;
+import com.sun.tools.javac.code.Symbol;
+import com.sun.tools.javac.code.Symbol.ClassSymbol;
+import com.sun.tools.javac.code.Type;
+import com.sun.tools.javac.code.Type.AnnotatedType;
+import com.sun.tools.javac.util.ListBuffer;
+import static com.sun.tools.javac.code.TypeTag.CLASS;
+
+/**
+ * Utility methods for operating on annotated constructs.
+ *
+ * <p><b>This is NOT part of any supported API.
+ * If you write code that depends on this, you do so at your own
+ * risk.  This code and its internal interfaces are subject to change
+ * or deletion without notice.</b></p>
+ */
+public class JavacAnnoConstructs {
+
+    // <editor-fold defaultstate="collapsed" desc="Symbols">
+
+    /**
+     * An internal-use utility that creates a runtime view of an
+     * annotation. This is the implementation of
+     * Element.getAnnotation(Class).
+     */
+    public static <A extends Annotation> A getAnnotation(Symbol annotated,
+                                                         Class<A> annoType) {
+        if (!annoType.isAnnotation())
+            throw new IllegalArgumentException("Not an annotation type: "
+                                               + annoType);
+        Attribute.Compound c;
+        if (annotated.kind == Kinds.TYP && annotated instanceof ClassSymbol) {
+            c = getAttributeOnClass((ClassSymbol)annotated, annoType);
+        } else {
+            c = getAttribute(annotated, annoType);
+        }
+        return c == null ? null : AnnotationProxyMaker.generateAnnotation(c, annoType);
+    }
+
+    // Helper to getAnnotation[s]
+    private static <A extends Annotation> Attribute.Compound getAttribute(Symbol annotated,
+                                                                          Class<A> annoType) {
+        String name = annoType.getName();
+
+        for (Attribute.Compound anno : annotated.getRawAttributes()) {
+            if (name.equals(anno.type.tsym.flatName().toString()))
+                return anno;
+        }
+
+        return null;
+    }
+
+    // Helper to getAnnotation[s]
+    private static <A extends Annotation> Attribute.Compound getAttributeOnClass(ClassSymbol annotated,
+                                                                Class<A> annoType) {
+        boolean inherited = annoType.isAnnotationPresent(Inherited.class);
+        Attribute.Compound result = null;
+        while (annotated.name != annotated.name.table.names.java_lang_Object) {
+            result = getAttribute(annotated, annoType);
+            if (result != null || !inherited)
+                break;
+            Type sup = annotated.getSuperclass();
+            if (!sup.hasTag(CLASS) || sup.isErroneous())
+                break;
+            annotated = (ClassSymbol) sup.tsym;
+        }
+        return result;
+    }
+
+    /**
+     * An internal-use utility that creates a runtime view of
+     * annotations. This is the implementation of
+     * Element.getAnnotations(Class).
+     */
+    public static <A extends Annotation> A[] getAnnotations(Symbol annotated,
+                                                            Class<A> annoType) {
+        if (!annoType.isAnnotation())
+            throw new IllegalArgumentException("Not an annotation type: "
+                                               + annoType);
+        // If annoType does not declare a container this is equivalent to wrapping
+        // getAnnotation(...) in an array.
+        Class <? extends Annotation> containerType = getContainer(annoType);
+        if (containerType == null) {
+            A res = getAnnotation(annotated, annoType);
+            int size;
+            if (res == null) {
+                size = 0;
+            } else {
+                size = 1;
+            }
+            @SuppressWarnings("unchecked") // annoType is the Class for A
+            A[] arr = (A[])java.lang.reflect.Array.newInstance(annoType, size);
+            if (res != null)
+                arr[0] = res;
+            return arr;
+        }
+
+        // So we have a containing type
+        String name = annoType.getName();
+        String annoTypeName = annoType.getSimpleName();
+        String containerTypeName = containerType.getSimpleName();
+        int directIndex = -1, containerIndex = -1;
+        Attribute.Compound direct = null, container = null;
+        Attribute.Compound[] rawAttributes = annotated.getRawAttributes().toArray(new Attribute.Compound[0]);
+
+        // Find directly present annotations
+        for (int i = 0; i < rawAttributes.length; i++) {
+            if (annoTypeName.equals(rawAttributes[i].type.tsym.flatName().toString())) {
+                directIndex = i;
+                direct = rawAttributes[i];
+            } else if(containerTypeName != null &&
+                      containerTypeName.equals(rawAttributes[i].type.tsym.flatName().toString())) {
+                containerIndex = i;
+                container = rawAttributes[i];
+            }
+        }
+
+        // Deal with inherited annotations
+        if (annotated.kind == Kinds.TYP &&
+                (annotated instanceof ClassSymbol)) {
+            ClassSymbol s = (ClassSymbol)annotated;
+            if (direct == null && container == null) {
+                direct = getAttributeOnClass(s, annoType);
+                container = getAttributeOnClass(s, containerType);
+
+                // both are inherited and found, put container last
+                if (direct != null && container != null) {
+                    directIndex = 0;
+                    containerIndex = 1;
+                } else if (direct != null) {
+                    directIndex = 0;
+                } else {
+                    containerIndex = 0;
+                }
+            } else if (direct == null) {
+                direct = getAttributeOnClass(s, annoType);
+                if (direct != null)
+                    directIndex = containerIndex + 1;
+            } else if (container == null) {
+                container = getAttributeOnClass(s, containerType);
+                if (container != null)
+                    containerIndex = directIndex + 1;
+            }
+        }
+
+        // Pack them in an array
+        Attribute[] contained0 = new Attribute[0];
+        if (container != null)
+            contained0 = unpackAttributes(container);
+        ListBuffer<Attribute.Compound> compounds = ListBuffer.lb();
+        for (Attribute a : contained0)
+            if (a instanceof Attribute.Compound)
+                compounds = compounds.append((Attribute.Compound)a);
+        Attribute.Compound[] contained = compounds.toArray(new Attribute.Compound[0]);
+
+        int size = (direct == null ? 0 : 1) + contained.length;
+        @SuppressWarnings("unchecked") // annoType is the Class for A
+        A[] arr = (A[])java.lang.reflect.Array.newInstance(annoType, size);
+
+        // if direct && container, which is first?
+        int insert = -1;
+        int length = arr.length;
+        if (directIndex >= 0 && containerIndex >= 0) {
+            if (directIndex < containerIndex) {
+                arr[0] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
+                insert = 1;
+            } else {
+                arr[arr.length - 1] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
+                insert = 0;
+                length--;
+            }
+        } else if (directIndex >= 0) {
+            arr[0] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
+            return arr;
+        } else {
+            // Only container
+            insert = 0;
+        }
+
+        for (int i = 0; i + insert < length; i++)
+            arr[insert + i] = AnnotationProxyMaker.generateAnnotation(contained[i], annoType);
+
+        return arr;
+    }
+
+    // </editor-fold>
+
+    // <editor-fold defaultstate="collapsed" desc="Types">
+
+    /**
+     * An internal-use utility that creates a runtime view of an
+     * annotation. This is the implementation of
+     * TypeMirror.getAnnotation(Class).
+     */
+    public static <A extends Annotation> A getAnnotation(AnnotatedType annotated, Class<A> annoType) {
+        if (!annoType.isAnnotation())
+            throw new IllegalArgumentException("Not an annotation type: "
+                                               + annoType);
+        Attribute.Compound c = getAttribute(annotated, annoType);
+        return c == null ? null : AnnotationProxyMaker.generateAnnotation(c, annoType);
+    }
+
+    // Helper to getAnnotation[s]
+    private static <A extends Annotation> Attribute.Compound getAttribute(Type annotated,
+                                                                          Class<A> annoType) {
+        String name = annoType.getName();
+
+        for (Attribute.Compound anno : annotated.getAnnotationMirrors()) {
+            if (name.equals(anno.type.tsym.flatName().toString()))
+                return anno;
+        }
+
+        return null;
+    }
+
+    /**
+     * An internal-use utility that creates a runtime view of
+     * annotations. This is the implementation of
+     * TypeMirror.getAnnotationsByType(Class).
+     */
+    public static <A extends Annotation> A[] getAnnotationsByType(AnnotatedType annotated, Class<A> annoType) {
+        if (!annoType.isAnnotation())
+            throw new IllegalArgumentException("Not an annotation type: "
+                                               + annoType);
+        // If annoType does not declare a container this is equivalent to wrapping
+        // getAnnotation(...) in an array.
+        Class <? extends Annotation> containerType = getContainer(annoType);
+        if (containerType == null) {
+            A res = getAnnotation(annotated, annoType);
+            int size;
+            if (res == null) {
+                size = 0;
+            } else {
+                size = 1;
+            }
+            @SuppressWarnings("unchecked") // annoType is the Class for A
+            A[] arr = (A[])java.lang.reflect.Array.newInstance(annoType, size);
+            if (res != null)
+                arr[0] = res;
+            return arr;
+        }
+
+        // So we have a containing type
+        String name = annoType.getName();
+        String annoTypeName = annoType.getSimpleName();
+        String containerTypeName = containerType.getSimpleName();
+        int directIndex = -1, containerIndex = -1;
+        Attribute.Compound direct = null, container = null;
+        Attribute.Compound[] rawAttributes = annotated.getAnnotationMirrors().toArray(new Attribute.Compound[0]);
+
+        // Find directly present annotations
+        for (int i = 0; i < rawAttributes.length; i++) {
+            if (annoTypeName.equals(rawAttributes[i].type.tsym.flatName().toString())) {
+                directIndex = i;
+                direct = rawAttributes[i];
+            } else if(containerTypeName != null &&
+                      containerTypeName.equals(rawAttributes[i].type.tsym.flatName().toString())) {
+                containerIndex = i;
+                container = rawAttributes[i];
+            }
+        }
+
+        // Pack them in an array
+        Attribute[] contained0 = new Attribute[0];
+        if (container != null)
+            contained0 = unpackAttributes(container);
+        ListBuffer<Attribute.Compound> compounds = ListBuffer.lb();
+        for (Attribute a : contained0) {
+            if (a instanceof Attribute.Compound)
+                compounds = compounds.append((Attribute.Compound)a);
+        }
+        Attribute.Compound[] contained = compounds.toArray(new Attribute.Compound[0]);
+
+        int size = (direct == null ? 0 : 1) + contained.length;
+        @SuppressWarnings("unchecked") // annoType is the Class for A
+        A[] arr = (A[])java.lang.reflect.Array.newInstance(annoType, size);
+
+        // if direct && container, which is first?
+        int insert = -1;
+        int length = arr.length;
+        if (directIndex >= 0 && containerIndex >= 0) {
+            if (directIndex < containerIndex) {
+                arr[0] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
+                insert = 1;
+            } else {
+                arr[arr.length - 1] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
+                insert = 0;
+                length--;
+            }
+        } else if (directIndex >= 0) {
+            arr[0] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
+            return arr;
+        } else {
+            // Only container
+            insert = 0;
+        }
+
+        for (int i = 0; i + insert < length; i++)
+            arr[insert + i] = AnnotationProxyMaker.generateAnnotation(contained[i], annoType);
+
+        return arr;
+    }
+
+    // </editor-fold>
+
+    // <editor-fold defaultstate="collapsed" desc="Container support">
+
+    // Needed to unpack the runtime view of containing annotations
+    private static final Class<? extends Annotation> REPEATABLE_CLASS = initRepeatable();
+    private static final Method VALUE_ELEMENT_METHOD = initValueElementMethod();
+
+    private static Class<? extends Annotation> initRepeatable() {
+        try {
+            // Repeatable will not be available when bootstrapping on
+            // JDK 7 so use a reflective lookup instead of a class
+            // literal for Repeatable.class.
+            return Class.forName("java.lang.annotation.Repeatable").asSubclass(Annotation.class);
+        } catch (ClassNotFoundException e) {
+            return null;
+        } catch (SecurityException e) {
+            return null;
+        }
+    }
+
+    private static Method initValueElementMethod() {
+        if (REPEATABLE_CLASS == null)
+            return null;
+
+        Method m = null;
+        try {
+            m = REPEATABLE_CLASS.getMethod("value");
+            if (m != null)
+                m.setAccessible(true);
+            return m;
+        } catch (NoSuchMethodException e) {
+            return null;
+        }
+    }
+
+    // Helper to getAnnotations
+    private static Class<? extends Annotation> getContainer(Class<? extends Annotation> annoType) {
+        // Since we can not refer to java.lang.annotation.Repeatable until we are
+        // bootstrapping with java 8 we need to get the Repeatable annotation using
+        // reflective invocations instead of just using its type and element method.
+        if (REPEATABLE_CLASS != null &&
+            VALUE_ELEMENT_METHOD != null) {
+            // Get the Repeatable instance on the annotations declaration
+            Annotation repeatable = (Annotation)annoType.getAnnotation(REPEATABLE_CLASS);
+            if (repeatable != null) {
+                try {
+                    // Get the value element, it should be a class
+                    // indicating the containing annotation type
+                    @SuppressWarnings("unchecked")
+                    Class<? extends Annotation> containerType = (Class)VALUE_ELEMENT_METHOD.invoke(repeatable);
+                    if (containerType == null)
+                        return null;
+
+                    return containerType;
+                } catch (ClassCastException e) {
+                    return null;
+                } catch (IllegalAccessException e) {
+                    return null;
+                } catch (InvocationTargetException e ) {
+                    return null;
+                }
+            }
+        }
+        return null;
+    }
+
+    // Helper to getAnnotations
+    private static Attribute[] unpackAttributes(Attribute.Compound container) {
+        // We now have an instance of the container,
+        // unpack it returning an instance of the
+        // contained type or null
+        return ((Attribute.Array)container.member(container.type.tsym.name.table.names.value)).values;
+    }
+
+    // </editor-fold>
+}

src/share/classes/com/sun/tools/javac/model/JavacElements.java

@@ -25,10 +25,6 @@
 
 package com.sun.tools.javac.model;
 
-import java.lang.annotation.Annotation;
-import java.lang.annotation.Inherited;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
 import java.util.Map;
 
 import javax.lang.model.SourceVersion;
@@ -40,7 +36,6 @@ import static javax.lang.model.util.ElementFilter.methodsIn;
 
 import com.sun.tools.javac.code.*;
 import com.sun.tools.javac.code.Symbol.*;
-import com.sun.tools.javac.code.TypeTag;
 import com.sun.tools.javac.comp.AttrContext;
 import com.sun.tools.javac.comp.Enter;
 import com.sun.tools.javac.comp.Env;
@@ -98,237 +93,6 @@ public class JavacElements implements Elements {
         enter = Enter.instance(context);
     }
 
-    /**
-     * An internal-use utility that creates a runtime view of an
-     * annotation. This is the implementation of
-     * Element.getAnnotation(Class).
-     */
-    public static <A extends Annotation> A getAnnotation(Symbol annotated,
-                                                         Class<A> annoType) {
-        if (!annoType.isAnnotation())
-            throw new IllegalArgumentException("Not an annotation type: "
-                                               + annoType);
-        Attribute.Compound c;
-        if (annotated.kind == Kinds.TYP && annotated instanceof ClassSymbol) {
-            c = getAttributeOnClass((ClassSymbol)annotated, annoType);
-        } else {
-            c = getAttribute(annotated, annoType);
-        }
-        return c == null ? null : AnnotationProxyMaker.generateAnnotation(c, annoType);
-    }
-
-    // Helper to getAnnotation[s]
-    private static <A extends Annotation> Attribute.Compound getAttribute(Symbol annotated,
-                                                                          Class<A> annoType) {
-        String name = annoType.getName();
-
-        for (Attribute.Compound anno : annotated.getRawAttributes())
-            if (name.equals(anno.type.tsym.flatName().toString()))
-                return anno;
-
-        return null;
-    }
-    // Helper to getAnnotation[s]
-    private static <A extends Annotation> Attribute.Compound getAttributeOnClass(ClassSymbol annotated,
-                                                                Class<A> annoType) {
-        boolean inherited = annoType.isAnnotationPresent(Inherited.class);
-        Attribute.Compound result = null;
-        while (annotated.name != annotated.name.table.names.java_lang_Object) {
-            result = getAttribute(annotated, annoType);
-            if (result != null || !inherited)
-                break;
-            Type sup = annotated.getSuperclass();
-            if (!sup.hasTag(CLASS) || sup.isErroneous())
-                break;
-            annotated = (ClassSymbol) sup.tsym;
-        }
-        return result;
-    }
-
-    /**
-     * An internal-use utility that creates a runtime view of
-     * annotations. This is the implementation of
-     * Element.getAnnotations(Class).
-     */
-    public static <A extends Annotation> A[] getAnnotations(Symbol annotated,
-                                                            Class<A> annoType) {
-        if (!annoType.isAnnotation())
-            throw new IllegalArgumentException("Not an annotation type: "
-                                               + annoType);
-        // If annoType does not declare a container this is equivalent to wrapping
-        // getAnnotation(...) in an array.
-        Class <? extends Annotation> containerType = getContainer(annoType);
-        if (containerType == null) {
-            A res = getAnnotation(annotated, annoType);
-            int size;
-            if (res == null) {
-                size = 0;
-            } else {
-                size = 1;
-            }
-            @SuppressWarnings("unchecked") // annoType is the Class for A
-            A[] arr = (A[])java.lang.reflect.Array.newInstance(annoType, size);
-            if (res != null)
-                arr[0] = res;
-            return arr;
-        }
-
-        // So we have a containing type
-        String name = annoType.getName();
-        String annoTypeName = annoType.getSimpleName();
-        String containerTypeName = containerType.getSimpleName();
-        int directIndex = -1, containerIndex = -1;
-        Attribute.Compound direct = null, container = null;
-        Attribute.Compound[] rawAttributes = annotated.getRawAttributes().toArray(new Attribute.Compound[0]);
-
-        // Find directly present annotations
-        for (int i = 0; i < rawAttributes.length; i++) {
-            if (annoTypeName.equals(rawAttributes[i].type.tsym.flatName().toString())) {
-                directIndex = i;
-                direct = rawAttributes[i];
-            } else if(containerTypeName != null &&
-                      containerTypeName.equals(rawAttributes[i].type.tsym.flatName().toString())) {
-                containerIndex = i;
-                container = rawAttributes[i];
-            }
-        }
-        // Deal with inherited annotations
-        if (annotated.kind == Kinds.TYP &&
-                (annotated instanceof ClassSymbol)) {
-            ClassSymbol s = (ClassSymbol)annotated;
-            if (direct == null && container == null) {
-                direct = getAttributeOnClass(s, annoType);
-                container = getAttributeOnClass(s, containerType);
-
-                // both are inherited and found, put container last
-                if (direct != null && container != null) {
-                    directIndex = 0;
-                    containerIndex = 1;
-                } else if (direct != null) {
-                    directIndex = 0;
-                } else {
-                    containerIndex = 0;
-                }
-            } else if (direct == null) {
-                direct = getAttributeOnClass(s, annoType);
-                if (direct != null)
-                    directIndex = containerIndex + 1;
-            } else if (container == null) {
-                container = getAttributeOnClass(s, containerType);
-                if (container != null)
-                    containerIndex = directIndex + 1;
-            }
-        }
-
-        // Pack them in an array
-        Attribute[] contained0 = new Attribute[0];
-        if (container != null)
-            contained0 = unpackAttributes(container);
-        ListBuffer<Attribute.Compound> compounds = ListBuffer.lb();
-        for (Attribute a : contained0)
-            if (a instanceof Attribute.Compound)
-                compounds = compounds.append((Attribute.Compound)a);
-        Attribute.Compound[] contained = compounds.toArray(new Attribute.Compound[0]);
-
-        int size = (direct == null ? 0 : 1) + contained.length;
-        @SuppressWarnings("unchecked") // annoType is the Class for A
-        A[] arr = (A[])java.lang.reflect.Array.newInstance(annoType, size);
-
-        // if direct && container, which is first?
-        int insert = -1;
-        int length = arr.length;
-        if (directIndex >= 0 && containerIndex >= 0) {
-            if (directIndex < containerIndex) {
-                arr[0] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
-                insert = 1;
-            } else {
-                arr[arr.length - 1] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
-                insert = 0;
-                length--;
-            }
-        } else if (directIndex >= 0) {
-            arr[0] = AnnotationProxyMaker.generateAnnotation(direct, annoType);
-            return arr;
-        } else {
-            // Only container
-            insert = 0;
-        }
-
-        for (int i = 0; i + insert < length; i++)
-            arr[insert + i] = AnnotationProxyMaker.generateAnnotation(contained[i], annoType);
-
-        return arr;
-    }
-
-    // Needed to unpack the runtime view of containing annotations
-    private static final Class<? extends Annotation> REPEATABLE_CLASS = initRepeatable();
-    private static final Method VALUE_ELEMENT_METHOD = initValueElementMethod();
-
-    private static Class<? extends Annotation> initRepeatable() {
-        try {
-            // Repeatable will not be available when bootstrapping on
-            // JDK 7 so use a reflective lookup instead of a class
-            // literal for Repeatable.class.
-            return Class.forName("java.lang.annotation.Repeatable").asSubclass(Annotation.class);
-        } catch (ClassNotFoundException e) {
-            return null;
-        } catch (SecurityException e) {
-            return null;
-        }
-    }
-    private static Method initValueElementMethod() {
-        if (REPEATABLE_CLASS == null)
-            return null;
-
-        Method m = null;
-        try {
-            m = REPEATABLE_CLASS.getMethod("value");
-            if (m != null)
-                m.setAccessible(true);
-            return m;
-        } catch (NoSuchMethodException e) {
-            return null;
-        }
-    }
-
-    // Helper to getAnnotations
-    private static Class<? extends Annotation> getContainer(Class<? extends Annotation> annoType) {
-        // Since we can not refer to java.lang.annotation.Repeatable until we are
-        // bootstrapping with java 8 we need to get the Repeatable annotation using
-        // reflective invocations instead of just using its type and element method.
-        if (REPEATABLE_CLASS != null &&
-            VALUE_ELEMENT_METHOD != null) {
-            // Get the Repeatable instance on the annotations declaration
-            Annotation repeatable = (Annotation)annoType.getAnnotation(REPEATABLE_CLASS);
-            if (repeatable != null) {
-                try {
-                    // Get the value element, it should be a class
-                    // indicating the containing annotation type
-                    @SuppressWarnings("unchecked")
-                    Class<? extends Annotation> containerType = (Class)VALUE_ELEMENT_METHOD.invoke(repeatable);
-                    if (containerType == null)
-                        return null;
-
-                    return containerType;
-                } catch (ClassCastException e) {
-                    return null;
-                } catch (IllegalAccessException e) {
-                    return null;
-                } catch (InvocationTargetException e ) {
-                    return null;
-                }
-            }
-        }
-        return null;
-    }
-    // Helper to getAnnotations
-    private static Attribute[] unpackAttributes(Attribute.Compound container) {
-        // We now have an instance of the container,
-        // unpack it returning an instance of the
-        // contained type or null
-        return ((Attribute.Array)container.member(container.type.tsym.name.table.names.value)).values;
-    }
-
     public PackageSymbol getPackageElement(CharSequence name) {
         String strName = name.toString();
         if (strName.equals(""))

src/share/classes/com/sun/tools/javac/model/JavacTypes.java

@@ -25,7 +25,6 @@
 
 package com.sun.tools.javac.model;
 
-import java.lang.annotation.Annotation;
 import java.util.Collections;
 import java.util.EnumSet;
 import java.util.LinkedHashSet;

src/share/classes/javax/lang/model/AnnotatedConstruct.java

+/*
+ * 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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 javax.lang.model;
+
+import java.lang.annotation.Annotation;
+import java.util.List;
+import javax.lang.model.element.*;
+
+/**
+ * Represent a construct that can have annotations.
+ *
+ * When annotations are on an {@linkplain element.Element element},
+ * the are on a <em>declaration</em>.  When annotations are on a {@linkplain
+ * type.TypeMirror type}, they are on a <em>use</em> of a type.
+ *
+ * @since 1.8
+ */
+public interface AnnotatedConstruct {
+    /**
+     * Returns the annotations that are directly present on this
+     * element or type use.
+     *
+     * @return the annotations directly present on this element or type use;
+     *          an empty list if there are none
+     */
+    List<? extends AnnotationMirror> getAnnotationMirrors();
+
+    /**
+     * Returns this element's or type use's annotation for the
+     * specified type if such an annotation is present, else {@code
+     * null}.  The annotation may be either inherited or directly
+     * present on this element.
+     *
+     * <p> The annotation returned by this method could contain an element
+     * whose value is of type {@code Class}.
+     * This value cannot be returned directly:  information necessary to
+     * locate and load a class (such as the class loader to use) is
+     * not available, and the class might not be loadable at all.
+     * Attempting to read a {@code Class} object by invoking the relevant
+     * method on the returned annotation
+     * will result in a {@link MirroredTypeException},
+     * from which the corresponding {@link TypeMirror} may be extracted.
+     * Similarly, attempting to read a {@code Class[]}-valued element
+     * will result in a {@link MirroredTypesException}.
+     *
+     * <blockquote>
+     * <i>Note:</i> This method is unlike others in this and related
+     * interfaces.  It operates on runtime reflective information &mdash;
+     * representations of annotation types currently loaded into the
+     * VM &mdash; rather than on the representations defined by and used
+     * throughout these interfaces.  Consequently, calling methods on
+     * the returned annotation object can throw many of the exceptions
+     * that can be thrown when calling methods on an annotation object
+     * returned by core reflection.  This method is intended for
+     * callers that are written to operate on a known, fixed set of
+     * annotation types.
+     * </blockquote>
+     *
+     * @param <A>  the annotation type
+     * @param annotationType  the {@code Class} object corresponding to
+     *          the annotation type
+     * @return this element's or type use's annotation for the
+     * specified annotation type if present on this element, else
+     * {@code null}
+     *
+     * @see #getAnnotationMirrors()
+     * @see java.lang.reflect.AnnotatedElement#getAnnotation
+     * @see EnumConstantNotPresentException
+     * @see AnnotationTypeMismatchException
+     * @see IncompleteAnnotationException
+     * @see MirroredTypeException
+     * @see MirroredTypesException
+     */
+    <A extends Annotation> A getAnnotation(Class<A> annotationType);
+
+    /**
+     * Returns annotations that are <em>present</em> on this element or type use.
+     *
+     * If there are no annotations <em>present</em> on this element or type use,
+     * the return value is an array of length 0.
+     *
+     * The difference between this method and {@link #getAnnotation(Class)}
+     * is that this method detects if its argument is a <em>repeatable
+     * annotation type</em> (JLS 9.6), and if so, attempts to find one or more
+     * annotations of that type by "looking through" a container annotation.
+     *
+     * <p> The annotations returned by this method could contain an element
+     * whose value is of type {@code Class}.
+     * This value cannot be returned directly:  information necessary to
+     * locate and load a class (such as the class loader to use) is
+     * not available, and the class might not be loadable at all.
+     * Attempting to read a {@code Class} object by invoking the relevant
+     * method on the returned annotation
+     * will result in a {@link MirroredTypeException},
+     * from which the corresponding {@link TypeMirror} may be extracted.
+     * Similarly, attempting to read a {@code Class[]}-valued element
+     * will result in a {@link MirroredTypesException}.
+     *
+     * <blockquote>
+     * <i>Note:</i> This method is unlike others in this and related
+     * interfaces.  It operates on runtime reflective information &mdash;
+     * representations of annotation types currently loaded into the
+     * VM &mdash; rather than on the representations defined by and used
+     * throughout these interfaces.  Consequently, calling methods on
+     * the returned annotation object can throw many of the exceptions
+     * that can be thrown when calling methods on an annotation object
+     * returned by core reflection.  This method is intended for
+     * callers that are written to operate on a known, fixed set of
+     * annotation types.
+     * </blockquote>
+     *
+     * @param <A>  the annotation type
+     * @param annotationType  the {@code Class} object corresponding to
+     *          the annotation type
+     * @return this element's annotations for the specified annotation
+     *         type if present on this element, else an empty array
+     *
+     * @see #getAnnotationMirrors()
+     * @see #getAnnotation(java.lang.Class)
+     * @see java.lang.reflect.AnnotatedElement#getAnnotationsByType
+     * @see EnumConstantNotPresentException
+     * @see AnnotationTypeMismatchException
+     * @see IncompleteAnnotationException
+     * @see MirroredTypeException
+     * @see MirroredTypesException
+     */
+    <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType);
+}

src/share/classes/javax/lang/model/element/Element.java

@@ -60,8 +60,7 @@ import javax.lang.model.util.*;
  * @see TypeMirror
  * @since 1.6
  */
-public interface Element {
-
+public interface Element extends javax.lang.model.AnnotatedConstruct {
     /**
      * Returns the type defined by this element.
      *
@@ -88,119 +87,6 @@ public interface Element {
      */
     ElementKind getKind();
 
-    /**
-     * Returns the annotations that are directly present on this element.
-     *
-     * <p> To get inherited annotations as well, use
-     * {@link Elements#getAllAnnotationMirrors(Element) getAllAnnotationMirrors}.
-     *
-     * @see ElementFilter
-     *
-     * @return the annotations directly present on this element;
-     *          an empty list if there are none
-     */
-    List<? extends AnnotationMirror> getAnnotationMirrors();
-
-    /**
-     * Returns this element's annotation for the specified type if
-     * such an annotation is present, else {@code null}.  The
-     * annotation may be either inherited or directly present on this
-     * element.
-     *
-     * <p> The annotation returned by this method could contain an element
-     * whose value is of type {@code Class}.
-     * This value cannot be returned directly:  information necessary to
-     * locate and load a class (such as the class loader to use) is
-     * not available, and the class might not be loadable at all.
-     * Attempting to read a {@code Class} object by invoking the relevant
-     * method on the returned annotation
-     * will result in a {@link MirroredTypeException},
-     * from which the corresponding {@link TypeMirror} may be extracted.
-     * Similarly, attempting to read a {@code Class[]}-valued element
-     * will result in a {@link MirroredTypesException}.
-     *
-     * <blockquote>
-     * <i>Note:</i> This method is unlike others in this and related
-     * interfaces.  It operates on runtime reflective information &mdash;
-     * representations of annotation types currently loaded into the
-     * VM &mdash; rather than on the representations defined by and used
-     * throughout these interfaces.  Consequently, calling methods on
-     * the returned annotation object can throw many of the exceptions
-     * that can be thrown when calling methods on an annotation object
-     * returned by core reflection.  This method is intended for
-     * callers that are written to operate on a known, fixed set of
-     * annotation types.
-     * </blockquote>
-     *
-     * @param <A>  the annotation type
-     * @param annotationType  the {@code Class} object corresponding to
-     *          the annotation type
-     * @return this element's annotation for the specified annotation
-     *         type if present on this element, else {@code null}
-     *
-     * @see #getAnnotationMirrors()
-     * @see java.lang.reflect.AnnotatedElement#getAnnotation
-     * @see EnumConstantNotPresentException
-     * @see AnnotationTypeMismatchException
-     * @see IncompleteAnnotationException
-     * @see MirroredTypeException
-     * @see MirroredTypesException
-     */
-    <A extends Annotation> A getAnnotation(Class<A> annotationType);
-
-    /**
-     * Returns annotations that are <em>present</em> on this element.
-     *
-     * If there are no annotations <em>present</em> on this element, the return
-     * value is an array of length 0.
-     *
-     * The difference between this method and {@link #getAnnotation(Class)}
-     * is that this method detects if its argument is a <em>repeatable
-     * annotation type</em> (JLS 9.6), and if so, attempts to find one or more
-     * annotations of that type by "looking through" a container annotation.
-     *
-     * <p> The annotations returned by this method could contain an element
-     * whose value is of type {@code Class}.
-     * This value cannot be returned directly:  information necessary to
-     * locate and load a class (such as the class loader to use) is
-     * not available, and the class might not be loadable at all.
-     * Attempting to read a {@code Class} object by invoking the relevant
-     * method on the returned annotation
-     * will result in a {@link MirroredTypeException},
-     * from which the corresponding {@link TypeMirror} may be extracted.
-     * Similarly, attempting to read a {@code Class[]}-valued element
-     * will result in a {@link MirroredTypesException}.
-     *
-     * <blockquote>
-     * <i>Note:</i> This method is unlike others in this and related
-     * interfaces.  It operates on runtime reflective information &mdash;
-     * representations of annotation types currently loaded into the
-     * VM &mdash; rather than on the representations defined by and used
-     * throughout these interfaces.  Consequently, calling methods on
-     * the returned annotation object can throw many of the exceptions
-     * that can be thrown when calling methods on an annotation object
-     * returned by core reflection.  This method is intended for
-     * callers that are written to operate on a known, fixed set of
-     * annotation types.
-     * </blockquote>
-     *
-     * @param <A>  the annotation type
-     * @param annotationType  the {@code Class} object corresponding to
-     *          the annotation type
-     * @return this element's annotations for the specified annotation
-     *         type if present on this element, else an empty array
-     *
-     * @see #getAnnotationMirrors()
-     * @see #getAnnotation(java.lang.Class)
-     * @see java.lang.reflect.AnnotatedElement#getAnnotationsByType
-     * @see EnumConstantNotPresentException
-     * @see AnnotationTypeMismatchException
-     * @see IncompleteAnnotationException
-     * @see MirroredTypeException
-     * @see MirroredTypesException
-     */
-    <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationType);
-
     /**
      * Returns the modifiers of this element, excluding annotations.
      * Implicit modifiers, such as the {@code public} and {@code static}
@@ -325,6 +211,19 @@ public interface Element {
      */
     int hashCode();
 
+
+    /**
+     * {@inheritDoc}
+     *
+     * <p> To get inherited annotations as well, use {@link
+     * Elements#getAllAnnotationMirrors(Element)
+     * getAllAnnotationMirrors}.
+     *
+     * @see ElementFilter
+     * @since 1.6
+     */
+    @Override
+    List<? extends AnnotationMirror> getAnnotationMirrors();
     /**
      * Applies a visitor to this element.
      *

src/share/classes/javax/lang/model/element/ExecutableElement.java

 /*
- * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 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
@@ -68,6 +68,25 @@ public interface ExecutableElement extends Element, Parameterizable {
      */
     List<? extends VariableElement> getParameters();
 
+    /**
+     * Returns the receiver type of this executable,
+     * or {@link javax.lang.model.type.NoType NoType} with
+     * kind {@link javax.lang.model.type.TypeKind#NONE NONE}
+     * if the executable has no receiver type.
+     *
+     * An executable which is an instance method, or a constructor of an
+     * inner class, has a receiver type derived from the {@linkplain
+     * #getEnclosingElement declaring type}.
+     *
+     * An executable which is a static method, or a constructor of a
+     * non-inner class, or an initializer (static or instance), has no
+     * receiver type.
+     *
+     * @return the receiver type of this executable
+     * @since 1.8
+     */
+    TypeMirror getReceiverType();
+
     /**
      * Returns {@code true} if this method or constructor accepts a variable
      * number of arguments and returns {@code false} otherwise.

src/share/classes/javax/lang/model/type/ExecutableType.java

@@ -77,6 +77,25 @@ public interface ExecutableType extends TypeMirror {
      */
     List<? extends TypeMirror> getParameterTypes();
 
+    /**
+     * Returns the receiver type of this executable,
+     * or {@link javax.lang.model.type.NoType NoType} with
+     * kind {@link javax.lang.model.type.TypeKind#NONE NONE}
+     * if the executable has no receiver type.
+     *
+     * An executable which is an instance method, or a constructor of an
+     * inner class, has a receiver type derived from the {@linkplain
+     * #getEnclosingElement declaring type}.
+     *
+     * An executable which is a static method, or a constructor of a
+     * non-inner class, or an initializer (static or instance), has no
+     * receiver type.
+     *
+     * @return the receiver type of this executable
+     * @since 1.8
+     */
+    TypeMirror getReceiverType();
+
     /**
      * Returns the exceptions and other throwables listed in this
      * executable's {@code throws} clause.

src/share/classes/javax/lang/model/type/TypeMirror.java

 /*
- * Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 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
@@ -25,6 +25,8 @@
 
 package javax.lang.model.type;
 
+import java.lang.annotation.Annotation;
+import java.util.List;
 import javax.lang.model.element.*;
 import javax.lang.model.util.Types;
 
@@ -55,7 +57,7 @@ import javax.lang.model.util.Types;
  * @see Types
  * @since 1.6
  */
-public interface TypeMirror {
+public interface TypeMirror extends javax.lang.model.AnnotatedConstruct {
 
     /**
      * Returns the {@code kind} of this type.

src/share/classes/javax/lang/model/util/Types.java

@@ -59,6 +59,13 @@ public interface Types {
     /**
      * Tests whether two {@code TypeMirror} objects represent the same type.
      *
+     * <p>Since annotations are only meta-data associated with a type,
+     * the set of annotations on either argument is <em>not</em> taken
+     * into account when computing whether or not two {@code
+     * TypeMirror} objects are the same type. In particular, two
+     * {@code TypeMirror} objects can have different annotations and
+     * still be considered the same.
+     *
      * <p>Caveat: if either of the arguments to this method represents a
      * wildcard, this method will return false.  As a consequence, a wildcard
      * is not the same type as itself.  This might be surprising at first,