Use java.lang.Objects#equals; eliminate a couple of nulls

[stevebosman-oc]

Contributed on behalf of the @opencastsoftware open source team

[codecov-commenter]

Codecov Report

Merging #307 (51eb7f7) into master (1677dac) will increase coverage by 0.08%.
The diff coverage is 66.66%.

@@             Coverage Diff              @@
##             master     #307      +/-   ##
============================================
+ Coverage     85.87%   85.95%   +0.08%     
+ Complexity     4676     4670       -6     
============================================
  Files           292      292              
  Lines         13469    13467       -2     
  Branches       1955     1954       -1     
============================================
+ Hits          11566    11576      +10     
+ Misses         1326     1325       -1     
+ Partials        577      566      -11     

Impacted Files	Coverage Δ
...mons/collections4/comparators/ComparatorChain.java	65.33% <0.00%> (ø)
...ommons/collections4/multiset/AbstractMultiSet.java	43.47% <0.00%> (+0.31%)	⬆️
.../org/apache/commons/collections4/map/Flat3Map.java	72.76% <33.33%> (+0.19%)	⬆️
...llections4/comparators/TransformingComparator.java	86.36% <50.00%> (+4.54%)	⬆️
...g/apache/commons/collections4/CollectionUtils.java	94.34% <100.00%> (+0.21%)	⬆️
...ava/org/apache/commons/collections4/ListUtils.java	87.30% <100.00%> (+0.68%)	⬆️
.../commons/collections4/functors/DefaultEquator.java	60.00% <100.00%> (+20.00%)	⬆️
...ache/commons/collections4/map/StaticBucketMap.java	93.66% <100.00%> (+2.71%)	⬆️
...commons/collections4/trie/AbstractBitwiseTrie.java	76.92% <100.00%> (ø)

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[kinow]

Thanks!