Fix null property being added to external claims

[amanda-ariyaratne]

Proposed changes in this pull request

If an external claim has no properties (null, null) is added to the property hash map of the claim. It is fixed by this PR.

[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 SonarCloud

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/11513262433

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 40.07%. Comparing base (834a75d) to head (9501a31).
Report is 161 commits behind head on master.

Files with missing lines	Patch %	Lines
...ntity/claim/metadata/mgt/dao/ExternalClaimDAO.java	50.00%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6061      +/-   ##
============================================
- Coverage     40.42%   40.07%   -0.35%     
+ Complexity    14625    14324     -301     
============================================
  Files          1745     1746       +1     
  Lines        122321   118531    -3790     
  Branches      21640    20474    -1166     
============================================
- Hits          49447    47501    -1946     
+ Misses        65365    63727    -1638     
+ Partials       7509     7303     -206     

Flag	Coverage Δ
unit	24.48% <50.00%> (+0.45%)	⬆️

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[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/11513262433
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/11513262433