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Access not possible using 'NULL' object reference.

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Former Member

‎2008 Nov 19 3:59 PM

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410

What is this abend telling me exactly? Anybody know?

Thank-You

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uwe_schieferstein
Active Contributor

‎2008 Nov 19 7:28 PM

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376

Hello

An instance method of a class has been called but the reference variable did not contain any instance, e.g.:


DATA: go_myclass    TYPE REF TO zcl_myclass.  " has instance method display

START-OF-SELECTION.

  CALL METHOD go_myclass->display( ).  " error because go_myclass not yet instantiated

" Replaced by:
  CREATE OBJECT go_myclass.
  CALL METHOD go_myclass->display( ).  " Now it works

" Or:

  CHECK ( go_myclass IS BOUND ).  " available on release >= 6.20
  CALL METHOD go_myclass->display( ).

Regards

Uwe

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uwe_schieferstein
Active Contributor

‎2008 Nov 19 7:28 PM

0 Likes
377

Hello

An instance method of a class has been called but the reference variable did not contain any instance, e.g.:


DATA: go_myclass    TYPE REF TO zcl_myclass.  " has instance method display

START-OF-SELECTION.

  CALL METHOD go_myclass->display( ).  " error because go_myclass not yet instantiated

" Replaced by:
  CREATE OBJECT go_myclass.
  CALL METHOD go_myclass->display( ).  " Now it works

" Or:

  CHECK ( go_myclass IS BOUND ).  " available on release >= 6.20
  CALL METHOD go_myclass->display( ).

Regards

Uwe