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/*
* 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.Collection;
import java.util.Comparator;
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<>() {
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<>() {
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<String>) nullPriorityQueue);
}},
new F() { void f() {
new PriorityBlockingQueue<String>((Collection<String>) nullPriorityQueue);
}},
new F() { void f() {
new PriorityQueue<String>(nullSortedSet);
}},
new F() { void f() {
new PriorityBlockingQueue<String>(nullSortedSet);
}},
new F() { void f() {
new PriorityQueue<String>((Collection<String>) nullSortedSet);
}},
new F() { void f() {
new PriorityBlockingQueue<String>((Collection<String>) nullSortedSet);
}},
new F() { void f() {
new PriorityQueue<String>(nullPriorityQueue);
}},
new F() { void f() {
new PriorityBlockingQueue<String>(nullPriorityQueue);
}},
new F() { void f() {
new PriorityQueue<String>().add(null);
}},
new F() { void f() {
new PriorityBlockingQueue<String>().add(null);
}},
new F() { void f() {
new ArrayBlockingQueue<String>(10, false).add(null);
}},
new F() { void f() {
new ArrayBlockingQueue<String>(10, true).add(null);
}},
new F() { void f() {
new LinkedBlockingQueue<String>().add(null);
}},
new F() { void f() {
new LinkedBlockingDeque<String>().add(null);
}},
new F() { void f() {
new PriorityQueue<String>().offer(null);
}},
new F() { void f() {
new PriorityBlockingQueue<String>().offer(null);
}});
nullSortedSet.add("foo");
nullCollection.add("foo");
THROWS(NullPointerException.class,
new F() { void f() {
new PriorityQueue<String>(nullCollection);
}},
new F() { void f() {
new PriorityBlockingQueue<String>(nullCollection);
}},
new F() { void f() {
new PriorityQueue<String>((Collection<String>) nullPriorityQueue);
}},
new F() { void f() {
new PriorityBlockingQueue<String>((Collection<String>) nullPriorityQueue);
}},
new F() { void f() {
new PriorityQueue<String>(nullSortedSet);
}},
new F() { void f() {
new PriorityBlockingQueue<String>(nullSortedSet);
}},
new F() { void f() {
new PriorityQueue<String>((Collection<String>) nullSortedSet);
}},
new F() { void f() {
new PriorityBlockingQueue<String>((Collection<String>) nullSortedSet);
}});
}
//--------------------- Infrastructure ---------------------------
volatile int passed = 0, failed = 0;
void pass() {passed++;}
void fail() {failed++; Thread.dumpStack();}
void fail(String msg) {System.err.println(msg); fail();}
void unexpected(Throwable t) {failed++; t.printStackTrace();}
void check(boolean cond) {if (cond) pass(); else fail();}
void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
new NoNulls().instanceMain(args);}
public void instanceMain(String[] args) throws Throwable {
try {test(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
abstract class F {abstract void f() throws Throwable;}
void THROWS(Class<? extends Throwable> k, F... fs) {
for (F f : fs)
try {f.f(); fail("Expected " + k.getName() + " not thrown");}
catch (Throwable t) {
if (k.isAssignableFrom(t.getClass())) pass();
else unexpected(t);}}
}
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