How to catch exception for class CL_HR_RE512W for method CHECK_CUMULATION

Hi,
How do I catch an exception when using method CHECK_CUMULATION in class CL_HR_RE512W.
This method calls an instance method READ which raises NO_ENTRY if a wage type is missing on T512W.
There is no obvious catch class to use?
My code:
data: r_512w type ref to cl_hr_re512w.
start-of-selection.
create OBJECT r_512w.
call method r_512w->check_cumulation
exporting
    p_molga  = molga
    p_lgart  = lgart
    p_cumul  = cumul
    p_date   = date
receiving
      p_has_cumulation = p_flg.
If lgart = '9999', for example, then we get an error message:
'No entry in table T512W for key 08 9999 25.08.2009'

Hi Gemini Twin,
Check this link:
https://wiki.sdn.sap.com/wiki/display/Snippets/ABAP+Objects+-+Defining+a+Class-based+exceptions
Hope this information is help to you.
Regards,
José

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