8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.lang;
27
28 import java.lang.reflect.Array;
29 import java.lang.reflect.GenericArrayType;
30 import java.lang.reflect.Member;
31 import java.lang.reflect.Field;
32 import java.lang.reflect.Executable;
33 import java.lang.reflect.Method;
34 import java.lang.reflect.Constructor;
35 import java.lang.reflect.Modifier;
36 import java.lang.reflect.Type;
37 import java.lang.reflect.TypeVariable;
38 import java.lang.reflect.InvocationTargetException;
39 import java.lang.reflect.AnnotatedType;
40 import java.lang.ref.SoftReference;
41 import java.io.InputStream;
42 import java.io.ObjectStreamField;
43 import java.security.AccessController;
44 import java.security.PrivilegedAction;
45 import java.util.ArrayList;
46 import java.util.Arrays;
47 import java.util.Collection;
3064 * @since 1.5
3065 */
3066 @SuppressWarnings("unchecked")
3067 public <U> Class<? extends U> asSubclass(Class<U> clazz) {
3068 if (clazz.isAssignableFrom(this))
3069 return (Class<? extends U>) this;
3070 else
3071 throw new ClassCastException(this.toString());
3072 }
3073
3074 /**
3075 * @throws NullPointerException {@inheritDoc}
3076 * @since 1.5
3077 */
3078 @SuppressWarnings("unchecked")
3079 public <A extends Annotation> A getAnnotation(Class<A> annotationClass) {
3080 Objects.requireNonNull(annotationClass);
3081
3082 initAnnotationsIfNecessary();
3083 return (A) annotations.get(annotationClass);
3084 }
3085
3086 /**
3087 * @throws NullPointerException {@inheritDoc}
3088 * @since 1.8
3089 */
3090 @Override
3091 public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationClass) {
3092 Objects.requireNonNull(annotationClass);
3093
3094 initAnnotationsIfNecessary();
3095 return AnnotationSupport.getMultipleAnnotations(annotations, annotationClass);
3096 }
3097
3098 /**
3099 * @since 1.5
3100 */
3101 public Annotation[] getAnnotations() {
3102 initAnnotationsIfNecessary();
3103 return AnnotationParser.toArray(annotations);
|
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package java.lang;
27
28 import java.lang.reflect.AnnotatedElement;
29 import java.lang.reflect.Array;
30 import java.lang.reflect.GenericArrayType;
31 import java.lang.reflect.Member;
32 import java.lang.reflect.Field;
33 import java.lang.reflect.Executable;
34 import java.lang.reflect.Method;
35 import java.lang.reflect.Constructor;
36 import java.lang.reflect.Modifier;
37 import java.lang.reflect.Type;
38 import java.lang.reflect.TypeVariable;
39 import java.lang.reflect.InvocationTargetException;
40 import java.lang.reflect.AnnotatedType;
41 import java.lang.ref.SoftReference;
42 import java.io.InputStream;
43 import java.io.ObjectStreamField;
44 import java.security.AccessController;
45 import java.security.PrivilegedAction;
46 import java.util.ArrayList;
47 import java.util.Arrays;
48 import java.util.Collection;
3065 * @since 1.5
3066 */
3067 @SuppressWarnings("unchecked")
3068 public <U> Class<? extends U> asSubclass(Class<U> clazz) {
3069 if (clazz.isAssignableFrom(this))
3070 return (Class<? extends U>) this;
3071 else
3072 throw new ClassCastException(this.toString());
3073 }
3074
3075 /**
3076 * @throws NullPointerException {@inheritDoc}
3077 * @since 1.5
3078 */
3079 @SuppressWarnings("unchecked")
3080 public <A extends Annotation> A getAnnotation(Class<A> annotationClass) {
3081 Objects.requireNonNull(annotationClass);
3082
3083 initAnnotationsIfNecessary();
3084 return (A) annotations.get(annotationClass);
3085 }
3086
3087 /**
3088 * {@inheritDoc}
3089 * @throws NullPointerException {@inheritDoc}
3090 * @since 1.5
3091 */
3092 @Override
3093 public boolean isAnnotationPresent(Class<? extends Annotation> annotationClass) {
3094 return AnnotatedElement.super.isAnnotationPresent(annotationClass);
3095 }
3096
3097 /**
3098 * @throws NullPointerException {@inheritDoc}
3099 * @since 1.8
3100 */
3101 @Override
3102 public <A extends Annotation> A[] getAnnotationsByType(Class<A> annotationClass) {
3103 Objects.requireNonNull(annotationClass);
3104
3105 initAnnotationsIfNecessary();
3106 return AnnotationSupport.getMultipleAnnotations(annotations, annotationClass);
3107 }
3108
3109 /**
3110 * @since 1.5
3111 */
3112 public Annotation[] getAnnotations() {
3113 initAnnotationsIfNecessary();
3114 return AnnotationParser.toArray(annotations);
|