refactor: remove unused exception variables in catch clauses #373
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This PR streamlines exception handling by removing unused exception variables from multiple catch blocks throughout the codebase.
Exceptionis unused: Several catch clauses declared exception variables (e.g.,ex,jrex,jsex,kex, andSqlExceptionvariables) that were never referenced, resulting in unnecessary code and compiler warnings. Each instance has been updated to omit the variable name (for example, changingcatch(Exception ex)tocatch(Exception)), improving readability and adhering to best practices in exception handling.