author | chegar |
Wed, 11 Nov 2015 11:31:21 +0000 | |
changeset 33680 | 56aa0b79bf5a |
parent 29040 | 1db7d75a0f5a |
child 41612 | e2be7700de36 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.corba; |
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import com.sun.corba.se.impl.io.ValueUtility; |
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import jdk.internal.misc.Unsafe; |
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import java.lang.reflect.Field; |
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import java.security.AccessController; |
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import java.security.PrivilegedAction; |
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/** A repository of "shared secrets", which are a mechanism for |
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calling implementation-private methods in another package without |
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using reflection. A package-private class implements a public |
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interface and provides the ability to call package-private methods |
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within that package; the object implementing that interface is |
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provided through a third package to which access is restricted. |
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This framework avoids the primary disadvantage of using reflection |
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for this purpose, namely the loss of compile-time checking. */ |
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// SharedSecrets cloned in corba repo to avoid build issues |
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public class SharedSecrets { |
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private static final Unsafe unsafe = getUnsafe(); |
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private static JavaCorbaAccess javaCorbaAccess; |
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private static Unsafe getUnsafe() { |
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PrivilegedAction<Unsafe> pa = () -> { |
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Class<?> unsafeClass = jdk.internal.misc.Unsafe.class ; |
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try { |
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Field f = unsafeClass.getDeclaredField("theUnsafe"); |
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f.setAccessible(true); |
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return (Unsafe) f.get(null); |
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} catch (Exception e) { |
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throw new Error(e); |
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} |
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}; |
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return AccessController.doPrivileged(pa); |
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} |
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public static JavaCorbaAccess getJavaCorbaAccess() { |
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if (javaCorbaAccess == null) { |
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// Ensure ValueUtility is initialized; we know that that class |
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// provides the shared secret |
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unsafe.ensureClassInitialized(ValueUtility.class); |
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} |
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return javaCorbaAccess; |
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} |
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public static void setJavaCorbaAccess(JavaCorbaAccess access) { |
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javaCorbaAccess = access; |
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} |
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} |