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Java example source code file (NoNulls.java)
The NoNulls.java Java example source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /* * This file is available under and governed by the GNU General Public * License version 2 only, as published by the Free Software Foundation. * However, the following notice accompanied the original version of this * file: * * Written by Martin Buchholz with assistance from members of JCP JSR-166 * Expert Group and released to the public domain, as explained at * http://creativecommons.org/publicdomain/zero/1.0/ */ /* * @test * @bug 6950540 * @summary Attempt to add a null throws NullPointerException */ import java.util.ArrayList; import java.util.Arrays; import java.util.Comparator; import java.util.Collection; import java.util.Collections; import java.util.PriorityQueue; import java.util.SortedSet; import java.util.TreeSet; import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.LinkedBlockingDeque; import java.util.concurrent.LinkedBlockingQueue; import java.util.concurrent.PriorityBlockingQueue; public class NoNulls { void test(String[] args) throws Throwable { final Comparator<String> nullTolerantComparator = new Comparator<String>() { public int compare(String x, String y) { return (x == null ? -1 : y == null ? 1 : x.compareTo(y)); }}; final SortedSet<String> nullSortedSet = new TreeSet<>(nullTolerantComparator); nullSortedSet.add(null); final PriorityQueue<String> nullPriorityQueue = new PriorityQueue<String>() { public Object[] toArray() { return new Object[] { null };}}; final Collection<String> nullCollection = new ArrayList<>(); nullCollection.add(null); THROWS(NullPointerException.class, new F() { void f() { new PriorityQueue<String>(nullCollection); }}, new F() { void f() { new PriorityBlockingQueue<String>(nullCollection); }}, new F() { void f() { new ArrayBlockingQueue<String>(10, false, nullCollection); }}, new F() { void f() { new ArrayBlockingQueue<String>(10, true, nullCollection); }}, new F() { void f() { new LinkedBlockingQueue<String>(nullCollection); }}, new F() { void f() { new LinkedBlockingDeque<String>(nullCollection); }}, new F() { void f() { new PriorityQueue<String>((Collection Other Java examples (source code examples)Here is a short list of links related to this Java NoNulls.java source code file: |
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