1 /*
   2  * Copyright (c) 2001, 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  *  @test
  26  *  @bug 4419450
  27  *  @summary Test newInstance() for arrays - currently covers
  28  *  only reference type arrays (see bug #4450091).
  29  *
  30  *  @author Robert Field
  31  *
  32  *  @run build TestScaffold VMConnection TargetListener TargetAdapter
  33  *  @run compile -g NewInstanceTest.java
  34  *  @run driver NewInstanceTest
  35  */
  36 import com.sun.jdi.*;
  37 import com.sun.jdi.event.*;
  38 import com.sun.jdi.request.*;
  39 
  40 import java.util.*;
  41 
  42     /********** target program **********/
  43 
  44 interface IfcFoo {
  45 }
  46 class ClsFoo implements IfcFoo {
  47 }
  48 
  49 class NewInstanceTarg {
  50     static ClsFoo aFoo = new ClsFoo();
  51 
  52     static Object[] objArray = new Object[10];
  53     static ClsFoo[] clsArray = new ClsFoo[10];
  54     static IfcFoo[] ifc0Array = new IfcFoo[10];
  55     static IfcFoo[] ifcArray = {aFoo, aFoo};
  56 
  57     public static void main(String[] args){
  58         System.out.println("Howdy!");
  59         System.out.println("Goodbye from NewInstanceTarg!");
  60     }
  61 }
  62 
  63     /********** test program **********/
  64 
  65 public class NewInstanceTest extends TestScaffold {
  66     ReferenceType targetClass;
  67 
  68     NewInstanceTest (String args[]) {
  69         super(args);
  70     }
  71 
  72     public static void main(String[] args)      throws Exception {
  73         new NewInstanceTest(args).startTests();
  74     }
  75 
  76     /********** test assist **********/
  77 
  78     void makeArray(String fieldName) throws Exception {
  79         println("Making array for field: " + fieldName);
  80         Field arrayField = targetClass.fieldByName(fieldName);
  81         ArrayType arrayType = (ArrayType)arrayField.type();
  82         println("Type for " + fieldName + " is " + arrayType);
  83         ArrayReference arrayReference = arrayType.newInstance(20);
  84         println("Passed subtest: " + fieldName);
  85     }
  86 
  87     /********** test core **********/
  88 
  89     protected void runTests() throws Exception {
  90         /*
  91          * Get to the top of main()
  92          * to determine targetClass
  93          */
  94         BreakpointEvent bpe = startToMain("NewInstanceTarg");
  95         targetClass = bpe.location().declaringType();
  96 
  97         makeArray("objArray");
  98         makeArray("clsArray");
  99         makeArray("ifc0Array");
 100         makeArray("ifcArray");
 101 
 102         /*
 103          * resume the target until end
 104          */
 105         listenUntilVMDisconnect();
 106 
 107         /*
 108          * deal with results of test
 109          * if anything has called failure("foo") testFailed will be true
 110          */
 111         if (!testFailed) {
 112             println("NewInstanceTest: passed");
 113         } else {
 114             throw new Exception("NewInstanceTest: failed");
 115         }
 116     }
 117 }