Details
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Bug
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Resolution: Fixed
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P1
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8, 9
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b01
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Verified
Backports
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8032140 | 8u20 | Paul Sandoz | P1 | Closed | Fixed | b01 |
| JDK-8032422 | 8u5 | Paul Sandoz | P1 | Resolved | Fixed | b05 |
| JDK-8031424 | 8 | Paul Sandoz | P1 | Closed | Fixed | b124 |
Description
The code for the DoubleStream.count method is incorrect:
public final long count() {
return mapToObj(e -> null).mapToInt(e -> 1).sum();
}
If a a double stream contains more than Integer.MAX_VALUE then the sum will overflow resulting in an incorrect value. The code should be:
public final long count() {
return mapToLong(e -> 1).sum();
}
public final long count() {
return mapToObj(e -> null).mapToInt(e -> 1).sum();
}
If a a double stream contains more than Integer.MAX_VALUE then the sum will overflow resulting in an incorrect value. The code should be:
public final long count() {
return mapToLong(e -> 1).sum();
}
Attachments
Issue Links
- backported by
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JDK-8032422 DoubleStream.count is incorrect for a stream containing > Integer.MAX_VALUE elements
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- Resolved
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- Closed
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- Closed
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