| /* |
| * 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 8011940 |
| * @summary Test inheritance, order and class redefinition behaviour of RUNTIME |
| * class annotations |
| * @author plevart |
| * @modules java.base/java.lang:open |
| * java.base/sun.reflect.annotation |
| */ |
| |
| import sun.reflect.annotation.AnnotationParser; |
| |
| import java.lang.annotation.Annotation; |
| import java.lang.annotation.Inherited; |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| import java.lang.reflect.Field; |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.StringJoiner; |
| |
| public class AnnotationsInheritanceOrderRedefinitionTest { |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| @Inherited |
| @interface Ann1 { |
| String value(); |
| } |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| @Inherited |
| @interface Ann2 { |
| String value(); |
| } |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| @Inherited |
| @interface Ann3 { |
| String value(); |
| } |
| |
| @Ann1("A") |
| @Ann2("A") |
| static class A {} |
| |
| @Ann3("B") |
| static class B extends A {} |
| |
| @Ann1("C") |
| @Ann3("C") |
| static class C extends B {} |
| |
| public static void main(String[] args) { |
| |
| StringBuilder msgs = new StringBuilder(); |
| boolean ok = true; |
| |
| ok &= annotationsEqual(msgs, A.class, true, |
| ann(Ann1.class, "A"), ann(Ann2.class, "A")); |
| ok &= annotationsEqual(msgs, A.class, false, |
| ann(Ann1.class, "A"), ann(Ann2.class, "A")); |
| ok &= annotationsEqual(msgs, B.class, true, |
| ann(Ann3.class, "B")); |
| ok &= annotationsEqual(msgs, B.class, false, |
| ann(Ann1.class, "A"), ann(Ann2.class, "A"), ann(Ann3.class, "B")); |
| ok &= annotationsEqual(msgs, C.class, true, |
| ann(Ann1.class, "C"), ann(Ann3.class, "C")); |
| ok &= annotationsEqual(msgs, C.class, false, |
| ann(Ann1.class, "C"), ann(Ann2.class, "A"), ann(Ann3.class, "C")); |
| |
| Annotation[] declaredAnnotatiosA = A.class.getDeclaredAnnotations(); |
| Annotation[] annotationsA = A.class.getAnnotations(); |
| Annotation[] declaredAnnotatiosB = B.class.getDeclaredAnnotations(); |
| Annotation[] annotationsB = B.class.getAnnotations(); |
| Annotation[] declaredAnnotatiosC = C.class.getDeclaredAnnotations(); |
| Annotation[] annotationsC = C.class.getAnnotations(); |
| |
| incrementClassRedefinedCount(A.class); |
| incrementClassRedefinedCount(B.class); |
| incrementClassRedefinedCount(C.class); |
| |
| ok &= annotationsEqualButNotSame(msgs, A.class, true, declaredAnnotatiosA); |
| ok &= annotationsEqualButNotSame(msgs, A.class, false, annotationsA); |
| ok &= annotationsEqualButNotSame(msgs, B.class, true, declaredAnnotatiosB); |
| ok &= annotationsEqualButNotSame(msgs, B.class, false, annotationsB); |
| ok &= annotationsEqualButNotSame(msgs, C.class, true, declaredAnnotatiosC); |
| ok &= annotationsEqualButNotSame(msgs, C.class, false, annotationsC); |
| |
| if (!ok) { |
| throw new RuntimeException("test failure\n" + msgs); |
| } |
| } |
| |
| // utility methods |
| |
| private static boolean annotationsEqualButNotSame(StringBuilder msgs, |
| Class<?> declaringClass, boolean declaredOnly, Annotation[] oldAnns) { |
| if (!annotationsEqual(msgs, declaringClass, declaredOnly, oldAnns)) { |
| return false; |
| } |
| Annotation[] anns = declaredOnly |
| ? declaringClass.getDeclaredAnnotations() |
| : declaringClass.getAnnotations(); |
| List<Annotation> sameAnns = new ArrayList<>(); |
| for (int i = 0; i < anns.length; i++) { |
| if (anns[i] == oldAnns[i]) { |
| sameAnns.add(anns[i]); |
| } |
| } |
| if (!sameAnns.isEmpty()) { |
| msgs.append(declaredOnly ? "declared " : "").append("annotations for ") |
| .append(declaringClass.getSimpleName()) |
| .append(" not re-parsed after class redefinition: ") |
| .append(toSimpleString(sameAnns)).append("\n"); |
| return false; |
| } else { |
| return true; |
| } |
| } |
| |
| private static boolean annotationsEqual(StringBuilder msgs, |
| Class<?> declaringClass, boolean declaredOnly, Annotation... expectedAnns) { |
| Annotation[] anns = declaredOnly |
| ? declaringClass.getDeclaredAnnotations() |
| : declaringClass.getAnnotations(); |
| if (!Arrays.equals(anns, expectedAnns)) { |
| msgs.append(declaredOnly ? "declared " : "").append("annotations for ") |
| .append(declaringClass.getSimpleName()).append(" are: ") |
| .append(toSimpleString(anns)).append(", expected: ") |
| .append(toSimpleString(expectedAnns)).append("\n"); |
| return false; |
| } else { |
| return true; |
| } |
| } |
| |
| private static Annotation ann(Class<? extends Annotation> annotationType, |
| Object value) { |
| return AnnotationParser.annotationForMap(annotationType, |
| Collections.singletonMap("value", value)); |
| } |
| |
| private static String toSimpleString(List<Annotation> anns) { |
| return toSimpleString(anns.toArray(new Annotation[anns.size()])); |
| } |
| |
| private static String toSimpleString(Annotation[] anns) { |
| StringJoiner joiner = new StringJoiner(", "); |
| for (Annotation ann : anns) { |
| joiner.add(toSimpleString(ann)); |
| } |
| return joiner.toString(); |
| } |
| |
| private static String toSimpleString(Annotation ann) { |
| Class<? extends Annotation> annotationType = ann.annotationType(); |
| Object value; |
| try { |
| value = annotationType.getDeclaredMethod("value").invoke(ann); |
| } catch (IllegalAccessException | InvocationTargetException |
| | NoSuchMethodException e) { |
| throw new RuntimeException(e); |
| } |
| return "@" + annotationType.getSimpleName() + "(" + value + ")"; |
| } |
| |
| private static final Field classRedefinedCountField; |
| |
| static { |
| try { |
| classRedefinedCountField = Class.class.getDeclaredField("classRedefinedCount"); |
| classRedefinedCountField.setAccessible(true); |
| } catch (NoSuchFieldException e) { |
| throw new Error(e); |
| } |
| } |
| |
| private static void incrementClassRedefinedCount(Class<?> clazz) { |
| try { |
| classRedefinedCountField.set(clazz, |
| ((Integer) classRedefinedCountField.get(clazz)) + 1); |
| } catch (IllegalAccessException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |