1 /*
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 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 5  * This code is free software; you can redistribute it and/or modify it
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 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.
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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
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25 
26 package jdk.internal.access;
27 
28 import java.lang.reflect.*;
29 import java.util.Optional;
30 import java.util.function.Function;
31 
32 import jdk.internal.reflect.*;
33 
34 /** An interface which gives privileged packages Java-level access to
35     internals of java.lang.reflect. Use as a last resort! */
36 public interface JavaLangReflectAccess {
37     /**
38      * Creates a new root constructor from the original one, with
39      * a custom accessor. Used by serialization hooks.
40      */
41     <T> Constructor<T> newConstructorWithAccessor(Constructor<T> original, ConstructorAccessor accessor);
42 
43     /** Gets the byte[] that encodes TypeAnnotations on an Executable. */
44     public byte[] getExecutableTypeAnnotationBytes(Executable ex);
45 
46     /** Gets the shared array of parameter types of an Executable. */
47     public Class<?>[] getExecutableSharedParameterTypes(Executable ex);
48 
49     /** Gets the shared array of exception types of an Executable. */
50     public Class<?>[] getExecutableSharedExceptionTypes(Executable ex);
51 
52     // Copying routines, needed to quickly fabricate new Field,
53     // Method, and Constructor objects from templates
54 
55     /** Makes a "child" copy of a Method */
56     public Method      copyMethod(Method arg);
57 
58     /** Makes a "child" copy of a Field */
59     public Field       copyField(Field arg);
60 
61     /** Makes a "child" copy of a Constructor */
62     public <T> Constructor<T> copyConstructor(Constructor<T> arg);
63 
64     /** Gets the root of the given AccessibleObject object; null if arg is the root */
65     public <T extends AccessibleObject> T getRoot(T obj);
66 
67     /** Tests if this is a trusted final field */
68     public boolean isTrustedFinalField(Field f);
69 
70     /** Returns a new instance created by the given constructor with access check */
71     public <T> T newInstance(Constructor<T> ctor, Object[] args, Class<?> caller)
72         throws IllegalAccessException, InstantiationException, InvocationTargetException;
73 
74     /** Cache code model on the reflective method instance (if none is set already). */
75     Optional<?> setCodeModelIfNeeded(Method method, Function<Method, Optional<?>> modelFactory);
76 }