JDK-5030267 : Use new static methods Long.highestOneBit/Long.bitCount in java.util.BitSet
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.util
  • Affected Version: 5.0
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2004-04-12
  • Updated: 2005-02-19
  • Resolved: 2005-02-19
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JDK 6
6 b25Fixed
Description
###@###.### 2004-04-12

It seems like java.util.BitSet could be modified to call the new 
jdk1.5 static methods Long.highestOneBit and Long.bitCount, instead 
of its own methods to do these things.
Comments
EVALUATION Sounds reasonable. The possibility should be investigated for 1.5.1. ###@###.### 2004-04-12 I note that both BitSet and Long have "difficult" implementations of bitcount, and it is not obvious which is better. We should choose one of them. ###@###.### 2005-1-21 01:35:00 GMT We are choosing the methods from Long. The new BitSet implementation will be simpler, smaller and faster. ###@###.### 2005-2-09 20:09:17 GMT
21-01-2005