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Rule description

• In terms of exception handling, CATCH blocks should always have a proper catching mechanism. Visual Expert identifies empty catch blocks to secure your code with a meaningful Exception handling.

Non-compliant Code Example

TRY
id = string (acos (ld_num1))
CATCH (runtimeerror er)   
   //Non compliant code (catch block with only return statement)
   Return id
FINALLY   
   // Add cleanup code here   
   id = "id" 
   Return ""
END TRY   

TRY
   ls_valor = string (acos (ld_num))
CATCH (runtimeerror er)   
   //Non compliant code (catch block with no statements)
   //MessageBox("Runtime Error", er.GetMessage()) //The code is commented
FINALLY
   // Add cleanup code here   
   ls_valor = "ls_valor"
   Return ""
END TRY   

Compliant Code Example

TRY
id = string (acos (ld_num1))
CATCH (runtimeerror er)   
   //Compliant code
    MessageBox("Runtime Error", er.GetMessage())
    Return id
FINALLY   
   // Add cleanup code here   
   id = "id" 
   Return ""
END TRY