Methods to get List values from Map

[johnson-abraham]

• Returns the list value of a map in a null-safe manner.

[coveralls]

Coverage decreased (-0.002%) to 90.11% when pulling a23d4fb on johnson-abraham:list_value_in_map into 591612e on apache:master.

[codecov-commenter]

Codecov Report

❌ Patch coverage is 71.42857% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.20%. Comparing base (1e9abf1) to head (923fa03).
⚠️ Report is 1028 commits behind head on master.

Files with missing lines	Patch %	Lines
...java/org/apache/commons/collections4/MapUtils.java	71.42%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #241      +/-   ##
============================================
+ Coverage     81.15%   81.20%   +0.04%     
- Complexity     4623     4628       +5     
============================================
  Files           290      290              
  Lines         13483    13490       +7     
  Branches       1993     1994       +1     
============================================
+ Hits          10942    10954      +12     
+ Misses         1937     1934       -3     
+ Partials        604      602       -2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.