1 /*
   2  * Copyright (c) 2001, 2015, 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  *  @modules jdk.jdi
  33  *  @run build TestScaffold VMConnection TargetListener TargetAdapter
  34  *  @run compile -g NewInstanceTest.java
  35  *  @run driver NewInstanceTest
  36  */
  37 import com.sun.jdi.*;
  38 import com.sun.jdi.event.*;
  39 import com.sun.jdi.request.*;
  40 
  41 import java.util.*;
  42 
  43     /********** target program **********/
  44 
  45 interface IfcFoo {
  46 }
  47 class ClsFoo implements IfcFoo {
  48 }
  49 
  50 class NewInstanceTarg {
  51     static ClsFoo aFoo = new ClsFoo();
  52 
  53     static Object[] objArray = new Object[10];
  54     static ClsFoo[] clsArray = new ClsFoo[10];
  55     static IfcFoo[] ifc0Array = new IfcFoo[10];
  56     static IfcFoo[] ifcArray = {aFoo, aFoo};
  57 
  58     public static void main(String[] args){
  59         System.out.println("Howdy!");
  60         System.out.println("Goodbye from NewInstanceTarg!");
  61     }
  62 }
  63 
  64     /********** test program **********/
  65 
  66 public class NewInstanceTest extends TestScaffold {
  67     ReferenceType targetClass;
  68 
  69     NewInstanceTest (String args[]) {
  70         super(args);
  71     }
  72 
  73     public static void main(String[] args)      throws Exception {
  74         new NewInstanceTest(args).startTests();
  75     }
  76 
  77     /********** test assist **********/
  78 
  79     void makeArray(String fieldName) throws Exception {
  80         println("Making array for field: " + fieldName);
  81         Field arrayField = targetClass.fieldByName(fieldName);
  82         ArrayType arrayType = (ArrayType)arrayField.type();
  83         println("Type for " + fieldName + " is " + arrayType);
  84         ArrayReference arrayReference = arrayType.newInstance(20);
  85         println("Passed subtest: " + fieldName);
  86     }
  87 
  88     /********** test core **********/
  89 
  90     protected void runTests() throws Exception {
  91         /*
  92          * Get to the top of main()
  93          * to determine targetClass
  94          */
  95         BreakpointEvent bpe = startToMain("NewInstanceTarg");
  96         targetClass = bpe.location().declaringType();
  97 
  98         makeArray("objArray");
  99         makeArray("clsArray");
 100         makeArray("ifc0Array");
 101         makeArray("ifcArray");
 102 
 103         /*
 104          * resume the target until end
 105          */
 106         listenUntilVMDisconnect();
 107 
 108         /*
 109          * deal with results of test
 110          * if anything has called failure("foo") testFailed will be true
 111          */
 112         if (!testFailed) {
 113             println("NewInstanceTest: passed");
 114         } else {
 115             throw new Exception("NewInstanceTest: failed");
 116         }
 117     }
 118 }