Details
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Bug
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Resolution: Fixed
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P4
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9, 10, 10.0.1, 11
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b19
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generic
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generic
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Verified
Backports
| Issue | Fix Version | Assignee | Priority | Status | Resolution | Resolved In Build |
|---|---|---|---|---|---|---|
| JDK-8205794 | 11.0.1 | Bernard Blaser | P4 | Resolved | Fixed | team |
Description
A DESCRIPTION OF THE PROBLEM :
In this example a lambda Comparable (so with return type int) returns a Character. This should cause unboxing and then conversion to int. But javac generates code that instead tries to convert the Character to Integer before the unboxing, leading to an unexpected ClassCastException
---------- BEGIN SOURCE ----------
List.of('x', 'y').stream()
.max((a, b) -> {return List.of(a).get(0);});
---------- END SOURCE ----------
FREQUENCY : always
In this example a lambda Comparable (so with return type int) returns a Character. This should cause unboxing and then conversion to int. But javac generates code that instead tries to convert the Character to Integer before the unboxing, leading to an unexpected ClassCastException
---------- BEGIN SOURCE ----------
List.of('x', 'y').stream()
.max((a, b) -> {return List.of(a).get(0);});
---------- END SOURCE ----------
FREQUENCY : always
Attachments
Issue Links
- backported by
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JDK-8205794 Unboxing in return from lambda miscompiled to throw ClassCastException
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- Resolved
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- relates to
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- Open
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- Closed
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