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Enhancement
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Resolution: Fixed
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P4
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None
FULL PRODUCT VERSION :
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.16299.248]
A DESCRIPTION OF THE PROBLEM :
java.util.AbstractMap.SimpleImmutableEntry is not actually immutable so methods receiving a SimpleImmutableEntry are forced to make defensive copies, defeating the entire purpose of this class.
The fact that the class is not final allows malicious sub-classes to declare mutable key2 and value2 and redirect calls to them.
Please make SimpleImmutableEntry final, or deprecate it and provide an immutable replacement.
REPRODUCIBILITY :
This bug can be reproduced always.
java version "9.0.4"
Java(TM) SE Runtime Environment (build 9.0.4+11)
Java HotSpot(TM) 64-Bit Server VM (build 9.0.4+11, mixed mode)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 10.0.16299.248]
A DESCRIPTION OF THE PROBLEM :
java.util.AbstractMap.SimpleImmutableEntry is not actually immutable so methods receiving a SimpleImmutableEntry are forced to make defensive copies, defeating the entire purpose of this class.
The fact that the class is not final allows malicious sub-classes to declare mutable key2 and value2 and redirect calls to them.
Please make SimpleImmutableEntry final, or deprecate it and provide an immutable replacement.
REPRODUCIBILITY :
This bug can be reproduced always.
- csr for
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JDK-8268134 add idempotent copy operation for Map.Entry
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- Closed
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- relates to
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JDK-8038146 Clarify Map.Entry's connection to the underlying map
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- Resolved
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