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Type: Enhancement
Resolution: Unresolved
Priority: P5
Fix Version/s: None
Affects Version/s: 23
Component/s: core-libs
Labels:
None

Subcomponent:
java.util:collections
CPU:

generic
OS:

generic

We can improve the performance of putAll following the same ideas for ConcurrentHashMap in ~~JDK-8322149~~

relates to

JDK-8210280 Unnecessary reallocation when invoking HashMap.putAll()

Closed

JDK-8322149 ConcurrentHashMap smarter presizing for copy constructor and putAll

Resolved

JDK-4710319 HashMap.resize(int) aborts when it shouldn't

Closed

links to

Review openjdk/jdk/17544

Assignee:: Unassigned
Reporter:: Joshua Cao
Votes:: 0 Vote for this issue
Watchers:: 3 Start watching this issue

Created:: 2024-01-23 14:38
Updated:: 2025-06-06 08:55