MaxwellCody opened a new pull request #730:
URL: https://github.com/apache/commons-lang/pull/730
The method accepts a Function object used to supply keys for the map.
The behavior of the single-parameter getEnumMap() can be emulated with this
method by using a reference to the Enum::name method. For example,
EnumUtils.getEnumMap(Traffic.class);
would become
EnumUtils.getEnumMap(Traffic.class, Traffic::name);
and the resulting map would be identical.
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