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 sun.corba; 27 28 import com.sun.corba.se.impl.io.ValueUtility; 29 import sun.misc.Unsafe; 30 31 import java.lang.reflect.Field; 32 import java.security.AccessController; 33 import java.security.PrivilegedAction; 34 35 /** A repository of "shared secrets", which are a mechanism for 36 calling implementation-private methods in another package without 37 using reflection. A package-private class implements a public 38 interface and provides the ability to call package-private methods 39 within that package; the object implementing that interface is 40 provided through a third package to which access is restricted. 41 This framework avoids the primary disadvantage of using reflection 42 for this purpose, namely the loss of compile-time checking. */ 43 44 // SharedSecrets cloned in corba repo to avoid build issues 45 public class SharedSecrets { 46 private static final Unsafe unsafe = getUnsafe(); 47 private static JavaCorbaAccess javaCorbaAccess; 48 49 private static Unsafe getUnsafe() { 50 PrivilegedAction<Unsafe> pa = () -> { 51 Class<?> unsafeClass = sun.misc.Unsafe.class ; 52 try { 53 Field f = unsafeClass.getDeclaredField("theUnsafe"); 54 f.setAccessible(true); 55 return (Unsafe) f.get(null); 56 } catch (Exception e) { 57 throw new Error(e); 58 } 59 }; 60 return AccessController.doPrivileged(pa); 61 } 62 63 public static JavaCorbaAccess getJavaCorbaAccess() { 64 if (javaCorbaAccess == null) { 65 // Ensure ValueUtility is initialized; we know that that class 66 // provides the shared secret 67 unsafe.ensureClassInitialized(ValueUtility.class); 68 } 69 return javaCorbaAccess; 70 } 71 | 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 sun.corba; 27 28 import com.sun.corba.se.impl.io.ValueUtility; 29 import jdk.internal.misc.Unsafe; 30 31 import java.lang.reflect.Field; 32 import java.security.AccessController; 33 import java.security.PrivilegedAction; 34 35 /** A repository of "shared secrets", which are a mechanism for 36 calling implementation-private methods in another package without 37 using reflection. A package-private class implements a public 38 interface and provides the ability to call package-private methods 39 within that package; the object implementing that interface is 40 provided through a third package to which access is restricted. 41 This framework avoids the primary disadvantage of using reflection 42 for this purpose, namely the loss of compile-time checking. */ 43 44 // SharedSecrets cloned in corba repo to avoid build issues 45 public class SharedSecrets { 46 private static final Unsafe unsafe = getUnsafe(); 47 private static JavaCorbaAccess javaCorbaAccess; 48 49 private static Unsafe getUnsafe() { 50 PrivilegedAction<Unsafe> pa = () -> { 51 Class<?> unsafeClass = jdk.internal.misc.Unsafe.class ; 52 try { 53 Field f = unsafeClass.getDeclaredField("theUnsafe"); 54 f.setAccessible(true); 55 return (Unsafe) f.get(null); 56 } catch (Exception e) { 57 throw new Error(e); 58 } 59 }; 60 return AccessController.doPrivileged(pa); 61 } 62 63 public static JavaCorbaAccess getJavaCorbaAccess() { 64 if (javaCorbaAccess == null) { 65 // Ensure ValueUtility is initialized; we know that that class 66 // provides the shared secret 67 unsafe.ensureClassInitialized(ValueUtility.class); 68 } 69 return javaCorbaAccess; 70 } 71 |