121 lines
4.0 KiB
Java
121 lines
4.0 KiB
Java
/*
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* Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 5045147
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* @summary Test handling of null with empty Map
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* @author Mike Duigou
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*/
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import java.util.*;
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import java.util.concurrent.*;
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import java.util.concurrent.atomic.*;
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import java.lang.reflect.*;
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public class EmptyMapAndNulls {
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@SuppressWarnings("rawtypes")
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static void realMain(String[] args) throws Throwable {
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// No comparator
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Map<String,String> comparable = new TreeMap<>();
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// insert null into empty map (5045147 failure)
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try {
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comparable.put(null, "anything");
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fail("null shouldn't be accepted");
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} catch (NullPointerException failed) {
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pass();
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}
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// insert non-null into empty map
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try {
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comparable.put("test", "anything");
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pass();
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} catch (NullPointerException failed) {
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fail();
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}
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// insert null into non-empty map
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try {
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comparable.put(null, "anything");
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fail("null shouldn't be accepted");
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} catch (NullPointerException failed) {
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pass();
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}
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// Comparator (String.CASE_INSENSITIVE_ORDER). Intentionally a raw type.
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Map comparator = new TreeMap(String.CASE_INSENSITIVE_ORDER);
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// insert null into empty map (5045147 failure)
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try {
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comparator.put(null, "anything");
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fail("null shouldn't be accepted");
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} catch (NullPointerException failed) {
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pass();
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}
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// insert non-null into empty map
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try {
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comparator.put("test", "anything");
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pass();
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} catch (NullPointerException failed) {
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fail();
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}
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// insert null into non-empty map
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try {
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comparator.put(null, "anything");
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fail("null shouldn't be accepted");
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} catch (NullPointerException failed) {
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pass();
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}
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comparator.clear();
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// insert non-String into empty map (5045147 failure)
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try {
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comparator.put(new Object(), "anything");
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fail("Object shouldn't be accepted");
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} catch (ClassCastException failed) {
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pass();
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}
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}
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//--------------------- Infrastructure ---------------------------
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static volatile int passed = 0, failed = 0;
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static void pass() {passed++;}
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static void fail() {failed++; Thread.dumpStack();}
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static void fail(String msg) {System.out.println(msg); fail();}
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static void unexpected(Throwable t) {failed++; t.printStackTrace();}
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static void check(boolean cond) {if (cond) pass(); else fail();}
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static void equal(Object x, Object y) {
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if (x == null ? y == null : x.equals(y)) pass();
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else fail(x + " not equal to " + y);}
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public static void main(String[] args) throws Throwable {
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try {realMain(args);} catch (Throwable t) {unexpected(t);}
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System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
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if (failed > 0) throw new AssertionError("Some tests failed");}
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}
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