Fix for Jenkins Malformed encoding

[agrasth]

• All tests have passed. If this feature is not already covered by the tests, new tests have been added.

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The issue was that when loading properties files with malformed Unicode escape sequences (like \uxxxx), the original code would fail with IllegalArgumentException: Malformed \uxxxx encoding.
The fix implements a fallback strategy:

• First, try the normal properties loading
• If that fails with IllegalArgumentException, try loading with explicit UTF-8 encoding
• If that also fails, continue with empty properties rather than failing the entire build

[bhanurp]

All comments looks redundant, consider removing.

[agrasth]

ok will remove.