Code inspection: Exception rethrow possibly intended

This inspection reports throw ex; inside a catch block when the code most likely intended to rethrow the current exception. Using throw ex; resets the stack trace. A plain throw; preserves the original call stack.

Example

                try
                {
                    DoWork();
                }
                catch (Exception ex)
                {
                    throw ex;
                }
            

                try
                {
                    DoWork();
                }
                catch (Exception ex)
                {
                    throw;
                }
            

Quick-fix

The quick-fix replaces the explicit exception variable with a plain rethrow.

01 April 2026