--- /dev/null 2013-10-23 13:21:49.554975487 -0700 +++ new/src/share/classes/java/lang/reflect/AnnotatedElementSupport.java 2013-10-24 00:20:05.000000000 -0700 @@ -0,0 +1,86 @@ +/* + * 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 java.lang.reflect; + +import java.lang.annotation.*; +import java.util.Objects; +import sun.reflect.annotation.AnnotationSupport; +import sun.reflect.annotation.AnnotationType; + +/** + * This class provides static utility methods to be called by + * implementations of {@link AnnotatedElement}, including the default + * methods in that interface. + */ +class AnnotatedElementSupport { + public static T[] getAnnotationsByTypeDeclaredOrNot(AnnotatedElement element, + Class annotationClass, + boolean declared) { + Objects.requireNonNull(annotationClass); + T annotation = (declared ? + element.getDeclaredAnnotation(annotationClass): + element.getAnnotation(annotationClass)); + @SuppressWarnings("unchecked") + T[] annotations = (T[]) Array.newInstance(annotationClass, 0); + int resultSize = 0; + + // If the annotation type is directly present, return it boxed + // in an array. + if (annotation != null) { + resultSize = 1; + } else { // Otherwise, if the annotation type is repeatable, + // look through a container if one is present + Repeatable repeatable = annotationClass.getAnnotation(Repeatable.class); + if (repeatable != null) { // T is a repeatable annotation type + Class containerType = repeatable.value(); + Annotation container = (declared ? + element.getDeclaredAnnotation(containerType): + element.getAnnotation(containerType)); + if (container != null) { + annotations = AnnotationSupport.getValueArray(container); + resultSize = annotations.length; + if (resultSize == 1) + annotation = annotations[0]; + } + } + } + + @SuppressWarnings("unchecked") + T[] returnValue = (T[]) Array.newInstance(annotationClass, resultSize); + switch (resultSize) { + case 0: + break; // Nothing else do to + case 1: + returnValue[0] = annotation; + break; + default: + for (int i = 0; i < resultSize; i++) { + returnValue[i] = annotations[i]; + } + break; + } + return returnValue; + } +}