1 /*
 2  * Copyright (c) 2001, 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.  Oracle designates this
 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.reflect;
27 
28 import jdk.internal.access.JavaLangReflectAccess;
29 import jdk.internal.reflect.ConstructorAccessor;
30 
31 /** Package-private class implementing the
32     jdk.internal.access.JavaLangReflectAccess interface, allowing the java.lang
33     package to instantiate objects in this package. */
34 final class ReflectAccess implements JavaLangReflectAccess {
35     public <T> Constructor<T> newConstructorWithAccessor(Constructor<T> original, ConstructorAccessor accessor) {
36         return original.newWithAccessor(accessor);
37     }
38 
39     public byte[] getExecutableTypeAnnotationBytes(Executable ex) {
40         return ex.getTypeAnnotationBytes();
41     }
42 
43     public Class<?>[] getExecutableSharedParameterTypes(Executable ex) {
44         return ex.getSharedParameterTypes();
45     }
46 
47     public Class<?>[] getExecutableSharedExceptionTypes(Executable ex) {
48         return ex.getSharedExceptionTypes();
49     }
50 
51     //
52     // Copying routines, needed to quickly fabricate new Field,
53     // Method, and Constructor objects from templates
54     //
55     public Method      copyMethod(Method arg) {
56         return arg.copy();
57     }
58 
59     public Field       copyField(Field arg) {
60         return arg.copy();
61     }
62 
63     public <T> Constructor<T> copyConstructor(Constructor<T> arg) {
64         return arg.copy();
65     }
66 
67     @SuppressWarnings("unchecked")
68     public <T extends AccessibleObject> T getRoot(T obj) {
69         return (T) obj.getRoot();
70     }
71 
72     public boolean isTrustedFinalField(Field f) {
73         return f.isTrustedFinal();
74     }
75 
76     public <T> T newInstance(Constructor<T> ctor, Object[] args, Class<?> caller)
77         throws IllegalAccessException, InstantiationException, InvocationTargetException
78     {
79         return ctor.newInstanceWithCaller(args, true, caller);
80     }
81 }