CIF-1779 - CIF components build fails with java 8

[cjelger]

• fix unit test issues with java 8
• enable new CircleCI job to build with java 8

[codecov]

Codecov Report

Merging #456 (aec1b6b) into master (13c2807) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #456   +/-   ##
=========================================
  Coverage     85.66%   85.66%           
  Complexity     1108     1108           
=========================================
  Files           225      225           
  Lines          5600     5600           
  Branches        810      810           
=========================================
  Hits           4797     4797           
  Misses          649      649           
  Partials        154      154           

Flag	Coverage Δ	Complexity Δ
integration	65.80% <ø> (ø)	0.00 <ø> (ø)
jest	80.02% <ø> (ø)	0.00 <ø> (ø)
karma	94.54% <ø> (ø)	0.00 <ø> (ø)
unittests	86.29% <ø> (ø)	0.00 <ø> (ø)

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