JDK-8373361 : Use of identity in HashMap and ConcurrentHashmap comparisons
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.util
  • Affected Version: 27
  • Priority: P4
  • Status: Open
  • Resolution: Unresolved
  • Submitted: 2025-12-09
  • Updated: 2025-12-15
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Other
tbdUnresolved
Related Reports
CSR :  
JDK-8373558 - Use of identity in HashMap and ConcurrentHashmap comparisons
Causes :  
JDK-8373617 - [jaxp] TransformerTest fails due to InstructionComparator gap
Cloners :  
JDK-8366214 - [lworld] Use Objects.equals in HashMap and ConcurrentHashmap
Description
The implementation of HashMap.get is stricter than the specification of HashMap.get. The disparity obscures inconsistent behavior in the .equals method of instances used a keys. Other HashMap methods use similarly imprecise implementations, for example `remove'().