1 /*
   2  * Copyright (c) 2006, 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 5045147
  27  * @summary Test handling of null with empty Map
  28  * @author Mike Duigou
  29  */
  30 
  31 import java.util.*;
  32 import java.util.concurrent.*;
  33 import java.util.concurrent.atomic.*;
  34 import java.lang.reflect.*;
  35 
  36 public class cr5045147 {
  37 
  38     static void realMain(String[] args) throws Throwable {
  39         // No comparator
  40         Map<String,String> comparable = new TreeMap<>();
  41 
  42         // insert null into empty map (504517 failure)
  43         try {
  44             comparable.put(null, "anything");
  45             fail("null shouldn't be accepted");
  46         } catch(NullPointerException failed) {
  47             pass();
  48         }
  49 
  50         // insert non-null into empty map
  51         try {
  52             comparable.put("test", "anything");
  53             pass();
  54         } catch(NullPointerException failed) {
  55             fail();
  56         }
  57 
  58         // insert null into non-empty map
  59         try {
  60             comparable.put(null, "anything");
  61             fail("null shouldn't be accepted");
  62         } catch(NullPointerException failed) {
  63             pass();
  64         }
  65 
  66         // Comparator (String.CASE_INSENSITIVE_ORDER). Intentionally a raw type.
  67         Map comparator = new TreeMap(String.CASE_INSENSITIVE_ORDER);
  68 
  69         // insert null into empty map (504517 failure)
  70         try {
  71             comparator.put(null, "anything");
  72             fail("null shouldn't be accepted");
  73         } catch(NullPointerException failed) {
  74             pass();
  75         }
  76 
  77         // insert non-null into empty map
  78         try {
  79             comparator.put("test", "anything");
  80             pass();
  81         } catch(NullPointerException failed) {
  82             fail();
  83         }
  84 
  85         // insert null into non-empty map
  86         try {
  87             comparator.put(null, "anything");
  88             fail("null shouldn't be accepted");
  89         } catch(NullPointerException failed) {
  90             pass();
  91         }
  92 
  93         comparator.clear();
  94 
  95         // insert non-String into empty map (504517 failure)
  96         try {
  97             comparator.put(new Object(), "anything");
  98             fail("Object shouldn't be accepted");
  99         } catch(ClassCastException failed) {
 100             pass();
 101         }
 102 
 103     }
 104 
 105     //--------------------- Infrastructure ---------------------------
 106     static volatile int passed = 0, failed = 0;
 107     static void pass() {passed++;}
 108     static void fail() {failed++; Thread.dumpStack();}
 109     static void fail(String msg) {System.out.println(msg); fail();}
 110     static void unexpected(Throwable t) {failed++; t.printStackTrace();}
 111     static void check(boolean cond) {if (cond) pass(); else fail();}
 112     static void equal(Object x, Object y) {
 113         if (x == null ? y == null : x.equals(y)) pass();
 114         else fail(x + " not equal to " + y);}
 115     public static void main(String[] args) throws Throwable {
 116         try {realMain(args);} catch (Throwable t) {unexpected(t);}
 117         System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
 118         if (failed > 0) throw new AssertionError("Some tests failed");}
 119 }