1019 |
|
|
1020 |
|
/** |
1021 |
|
* Handle capacities near Integer.MAX_VALUE. |
1022 |
< |
* ant -Dvmoptions=-Xmx24g -Djsr166.expensiveTests=true -Djsr166.tckTestClass=ArrayDequeTest -Djsr166.methodFilter=testHuge tck |
1022 |
> |
* ant -Dvmoptions='-Xms28g -Xmx28g' -Djsr166.testImplementationDetails=true -Djsr166.expensiveTests=true -Djsr166.tckTestClass=ArrayDequeTest -Djsr166.methodFilter=testHuge tck |
1023 |
|
*/ |
1024 |
|
public void testHuge() { |
1025 |
|
if (! (testImplementationDetails |
1026 |
|
&& expensiveTests |
1027 |
< |
&& Runtime.getRuntime().freeMemory() > 21_000_000_000L)) |
1027 |
> |
&& Runtime.getRuntime().maxMemory() > 24L * (1 << 30))) |
1028 |
|
return; |
1029 |
– |
int maxSize = Integer.MAX_VALUE - 8; |
1030 |
– |
ArrayDeque<Integer> q; |
1029 |
|
|
1030 |
< |
q = new ArrayDeque<>(maxSize); |
1030 |
> |
ArrayDeque q; |
1031 |
> |
Integer e = 42; |
1032 |
> |
final int maxSize = Integer.MAX_VALUE - 8; |
1033 |
|
|
1034 |
|
assertThrows(OutOfMemoryError.class, |
1035 |
|
() -> new ArrayDeque<>(Integer.MAX_VALUE)); |
1036 |
|
|
1037 |
< |
q = populatedDeque(0); |
1038 |
< |
assertTrue(q.addAll(Collections.nCopies(maxSize - 2, (Integer) 42))); |
1039 |
< |
assertEquals((Integer) 42, q.peekFirst()); |
1040 |
< |
assertEquals((Integer) 42, q.peekLast()); |
1041 |
< |
assertEquals(maxSize - 2, q.size()); |
1042 |
< |
q.addFirst((Integer) 0); |
1043 |
< |
q.addLast((Integer) 1); |
1044 |
< |
assertEquals((Integer) 0, q.peekFirst()); |
1045 |
< |
assertEquals((Integer) 1, q.peekLast()); |
1046 |
< |
assertEquals(maxSize, q.size()); |
1037 |
> |
{ |
1038 |
> |
q = new ArrayDeque<>(maxSize); |
1039 |
> |
assertEquals(0, q.size()); |
1040 |
> |
assertTrue(q.isEmpty()); |
1041 |
> |
q = null; |
1042 |
> |
} |
1043 |
> |
|
1044 |
> |
{ |
1045 |
> |
q = new ArrayDeque(); |
1046 |
> |
assertTrue(q.addAll(Collections.nCopies(maxSize - 2, e))); |
1047 |
> |
assertEquals(e, q.peekFirst()); |
1048 |
> |
assertEquals(e, q.peekLast()); |
1049 |
> |
assertEquals(maxSize - 2, q.size()); |
1050 |
> |
q.addFirst((Integer) 0); |
1051 |
> |
q.addLast((Integer) 1); |
1052 |
> |
assertEquals((Integer) 0, q.peekFirst()); |
1053 |
> |
assertEquals((Integer) 1, q.peekLast()); |
1054 |
> |
assertEquals(maxSize, q.size()); |
1055 |
> |
|
1056 |
> |
ArrayDeque qq = q; |
1057 |
> |
ArrayDeque smallish = new ArrayDeque( |
1058 |
> |
Collections.nCopies(Integer.MAX_VALUE - maxSize + 1, e)); |
1059 |
> |
assertThrows( |
1060 |
> |
IllegalStateException.class, |
1061 |
> |
() -> qq.addAll(qq), |
1062 |
> |
() -> qq.addAll(smallish), |
1063 |
> |
() -> smallish.addAll(qq)); |
1064 |
> |
} |
1065 |
|
} |
1066 |
|
|
1067 |
|
} |