JDK-8152733 : Avoid creating Manifest when checking for Multi-Release attribute
  • Type: Bug
  • Component: core-libs
  • Sub-Component: java.util.jar
  • Affected Version: 9
  • Priority: P3
  • Status: Resolved
  • Resolution: Fixed
  • OS: generic
  • CPU: generic
  • Submitted: 2016-03-25
  • Updated: 2017-08-17
  • Resolved: 2016-03-28
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JDK 9
9 b113Fixed
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Description
The Multi-Release feature cause a startup regression in various applications due to creating and parsing the manifest entry into a java.util.jar.Manifest - by reusing the logic the hasClassPath goes through to scan the raw manifest data for the Multi-Release: attribute we can avoid this.