JDK-8040747 : Improve performance of IP address parsing
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.net
  • Affected Version: 7u6,8,9
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2014-04-16
  • Updated: 2016-05-27
  • Resolved: 2014-04-22
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8u20Fixed 9 b11Fixed
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Since JDK-6924259, allocation pressure and computational cost of parsing IP addresses has risen enough to become an issue in some cases. The specialized internal parser could be optimized by parsing the octets in a single pass over the string.
Will post webrev provided by Claes shortly.