1 /* 2 * Copyright (c) 2000, 2019, 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 package sun.jvm.hotspot.runtime; 26 27 import java.lang.reflect.*; 28 import sun.jvm.hotspot.debugger.*; 29 import sun.jvm.hotspot.types.*; 30 31 /** <P> This class implements a factory mechanism for the objects 32 created to wrap Addresses. It requires that the class passed in 33 implement a constructor taking with the following signature: </P> 34 35 <P> 36 <CODE> public <Type>(sun.jvm.hotspot.Address) 37 </CODE> 38 </P> 39 40 <P> It is used to write shorter code when wrapping Addresses since 41 null checks are no longer necessary. In addition, it is a central 42 location where a canonicalizing map could be implemented if one 43 were desired (though the current system is designed to not require 44 one.) </P> 45 */ 46 47 public class VMObjectFactory { 48 public static <T> T newObject(Class<T> clazz, Address addr) 49 throws ConstructionException { 50 try { 51 if (addr == null) { 52 return null; 53 } 54 55 Constructor<T> c = clazz.getConstructor(new Class[] { 56 Address.class 57 }); 58 return c.newInstance(new Object[] { addr }); 59 } 60 catch (java.lang.reflect.InvocationTargetException ite) { 61 if (ite.getTargetException() instanceof RuntimeException) { 62 throw (RuntimeException)ite.getTargetException(); 63 } 64 throw new ConstructionException(ite); 65 } 66 catch (Exception e) { 67 throw new ConstructionException(e); 68 } 69 } 70 }