Role paging in Users fix

[ct-ajovanovic]

Signed-off-by: ct-ajovanovic aleksandra.jovanovic@comtrade.com

Brief description of the PR.
Role paging in Users fix

Related Issue
This PR fixes/closes #2174

Description of the solution adopted
The totalLegnth property in GwtAccessRoleServiceImpl class is now always set to int value of accessRoleService.count(query). This is one of the properties the EntityGrid's entityLoader needs for correct result display.

Screenshots
None

Any side note on the changes made
Added accessRoleList.isEmpty() check in findByUserId() method of GwtAccessRoleServiceImpl class .

[LeoNerdoG]

I have verified that this issue successfully resolves issue #2174.

[codecov]

Codecov Report

Merging #2189 into develop will increase coverage by 0.01%.
The diff coverage is n/a.

@@              Coverage Diff              @@
##             develop    #2189      +/-   ##
=============================================
+ Coverage      57.43%   57.45%   +0.01%     
  Complexity      1584     1584              
=============================================
  Files           1068     1068              
  Lines          25978    25978              
  Branches        2296     2296              
=============================================
+ Hits           14920    14925       +5     
+ Misses         10082    10078       -4     
+ Partials         976      975       -1

Impacted Files	Coverage Δ	Complexity Δ
...pse/kapua/broker/core/pool/JmsConsumerWrapper.java	60% <0%> (-10%)	0% <0%> (ø)
.../broker/core/plugin/KapuaSecurityBrokerFilter.java	75.32% <0%> (+0.32%)	0% <0%> (ø)	⬇️
...plugin/authentication/UserAuthenticationLogic.java	73.39% <0%> (+1.83%)	0% <0%> (ø)	⬇️
...egistry/event/internal/DeviceEventServiceImpl.java	97.67% <0%> (+2.32%)	0% <0%> (ø)	⬇️
...ua/broker/core/listener/DeviceMessageListener.java	48.88% <0%> (+6.66%)	0% <0%> (ø)	⬇️

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