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      1 /*
      2  * Copyright (c) 1998, 1999, 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 com.sun.tools.jdi;
     27 
     28 import com.sun.jdi.*;
     29 
     30 public class StringReferenceImpl extends ObjectReferenceImpl
     31     implements StringReference
     32 {
     33     private String value;
     34 
     35     StringReferenceImpl(VirtualMachine aVm,long aRef) {
     36         super(aVm,aRef);
     37     }
     38 
     39     public String value() {
     40         if(value == null) {
     41             // Does not need synchronization, since worst-case
     42             // static info is fetched twice
     43             try {
     44                 value = JDWP.StringReference.Value.
     45                     process(vm, this).stringValue;
     46             } catch (JDWPException exc) {
     47                 throw exc.toJDIException();
     48             }
     49         }
     50         return value;
     51     }
     52 
     53     public String toString() {
     54         return "\"" + value() + "\"";
     55     }
     56 
     57     byte typeValueKey() {
     58         return JDWP.Tag.STRING;
     59     }
     60 }
     61