JDK-8038436 : Re-examine the mechanism to determine available localedata and cldrdata
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.util:i18n
  • Affected Version: 9
  • Priority: P2
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2014-03-26
  • Updated: 2016-08-26
  • Resolved: 2014-09-02
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9 b30Fixed
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The current mechanism to determine the available locale providers depends on the JDK layout, specifically it checks if localedata.jar and cldrdata.jar are present.

In JDK 9, localedata and cldrdata will be modules and there will be no localedata.jar and cldrdata.jar.

One option to consider is the use of ServiceLoader to load the CLDR and LocaleData providers.

Removed the file existence check for those jar files. Turned LocaleDataMetaInfo as an SPI, and dynamically search for the impl (i.e., localedata.jar and cldrdata.jar) at runtime through ServiceLoader.