Throw signature exception from signing and signature validation utils

[sadilchamishka]

Proposed changes in this pull request

$subject

[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

[jenkins-is-staging]

PR builder started
Link: https://github.com/wso2/product-is/actions/runs/12173166665

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 41.02%. Comparing base (eee404d) to head (3b6ada1).
Report is 11 commits behind head on master.

Files with missing lines	Patch %	Lines
...g/wso2/carbon/identity/core/util/IdentityUtil.java	75.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6179      +/-   ##
============================================
- Coverage     41.03%   41.02%   -0.01%     
+ Complexity    15392    15391       -1     
============================================
  Files          1796     1796              
  Lines        123042   123037       -5     
  Branches      21408    21408              
============================================
- Hits          50485    50480       -5     
  Misses        65058    65058              
  Partials       7499     7499              

Flag	Coverage Δ
unit	27.66% <75.00%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[jenkins-is-staging]

PR builder completed
Link: https://github.com/wso2/product-is/actions/runs/12173166665
Status: success

[jenkins-is-staging]

Approving the pull request based on the successful pr build https://github.com/wso2/product-is/actions/runs/12173166665