chore: improve javadoc example

[taefi]

This improves the logic in the javadoc example.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.64%. Comparing base (0e4ba3e) to head (80307f4).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2917   +/-   ##
=======================================
  Coverage   92.64%   92.64%           
=======================================
  Files          83       83           
  Lines        2842     2842           
  Branches      739      739           
=======================================
  Hits         2633     2633           
  Misses        158      158           
  Partials       51       51           

Flag	Coverage Δ
unittests	92.64% <ø> (ø)

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