BPM SMQ2 in sysfail Access using a 'ZERO' object reference is not possible

Hi ,
I am working on a IDOC to SOAP synchronous scenario
So I am using a BPM....
I have written a operation mapping outside BPM
1) Request MM creates the SOAP rquest
2) Response is a ABAP mapping where i am checking the response from webserice and then generating an email using ABAP code.
now when i am running this scneario works fine and the mail gets generated...
however i get a green flag in moni and in SMQ2 in sysfail Access using a 'ZERO' object reference is not possible
PS : Also the response coming from the webserice has a custom header which does not match with the response ABAP mapping source MT
however if I work on the same thing using Proxy to SOAP sync there is no sysfail message and it works fine
Is this a bug in the system ...i am using PI 7.1

Hi,
Try to implement SAP note 1164228 or apply package SAPKB71007 to resolve your issue.

Similar Messages

RFC to HTTP Interface - Access using NULL object reference is not possible

Hi All,
I am working on a Interface RFC to HTTP where in I am sending the data to a third party system.
Using PI 7.3 and Adapter type XI to send this data.
I am getitng an error Short dump occured when executing message in qRFC queue <Queuename>: Date/time 02.12.2011 08:44:57, user XXXXX, runtime error: Access using NULL object reference is not possible.
<SAP:Code area="INTERNAL">QRFC_SYSTEM_DUMP</SAP:Code>
I am entering the parameters such as target host,service number,path correctly with addrseing type as URL.
The message is failing in the call adapter step with the above error.
There are no messages stuck in SMQ2 as well.
Now on the other if I use the adapter type HTTP_AAE the messages is getting successfully delivered with the same parameters mentioned above.But as we know it is a plain adapter and will not have the SOAP envelope.
We would want to send the data using the XI adapter.
Any idea as why this issue is happening?
Helpful answers will be rewarded points.
Thanks & Regards,
RK

Hi,
please go through below threads,
Error for all the interfaces
Access via NULL object reference not possible., error key: RFC_ERROR_SYSTEM
hope it will help you
regards,
ganesh

Dump - Access using NULL object reference is not possible!!!

Hi,
I'm using the BCS class for sending HTM format email so i use the below code for that its working,
DATA: gr_document      TYPE REF TO cl_document_bcs,
gr_document = cl_document_bcs=>create_document(
                      i_type    = 'HTM'
                       i_text    = t_html
                       i_importance = '5'
                       i_subject = gc_subject ).
Next task is to send the image so i'm creating an another object to the same class, below code
*Image from MIME
DATA: o_mr_api         TYPE REF TO if_mr_api.
DATA is_folder TYPE boole_d.
DATA l_img1 TYPE xstring.
DATA l_img2 TYPE xstring.
DATA l_loio TYPE skwf_io.
DATA: lo_document   TYPE REF TO cl_document_bcs.
IF o_mr_api IS INITIAL.
   o_mr_api = cl_mime_repository_api=>if_mr_api~get_api( ).
ENDIF.
CALL METHOD o_mr_api->get
   EXPORTING
     i_url              = '/SAP/PUBLIC/ZDEMO/tick.png'
   IMPORTING
     e_is_folder        = is_folder
     e_content          = l_img1
     e_loio             = l_loio
   EXCEPTIONS
     parameter_missing = 1
     error_occured      = 2
     not_found          = 3
     permission_failure = 4
     OTHERS             = 5.
CALL METHOD o_mr_api->get
   EXPORTING
     i_url              = '/SAP/PUBLIC/ZDEMO/Delete.png'
   IMPORTING
     e_is_folder        = is_folder
     e_content          = l_img2
     e_loio             = l_loio
   EXCEPTIONS
     parameter_missing = 1
     error_occured      = 2
     not_found          = 3
     permission_failure = 4
     OTHERS             = 5.
*Convert XSTRING to ITAB
DATA :lt_hex1 TYPE solix_tab,
       lt_hex2 TYPE solix_tab,
       ls_hex LIKE LINE OF lt_hex1,
       lv_img1_size TYPE sood-objlen,
       lv_img2_size TYPE sood-objlen.
CLEAR : lt_hex1, lt_hex2, ls_hex, lv_img1_size, lv_img2_size.
WHILE l_img1 IS NOT INITIAL.
   ls_hex-line = l_img1.
   APPEND ls_hex TO lt_hex1.
   SHIFT l_img1 LEFT BY 255 PLACES IN BYTE MODE.
ENDWHILE.
WHILE l_img2 IS NOT INITIAL.
   ls_hex-line = l_img2.
   APPEND ls_hex TO lt_hex2.
   SHIFT l_img2 LEFT BY 255 PLACES IN BYTE MODE.
ENDWHILE.
*Findthe Size of the image
DESCRIBE TABLE lt_hex1 LINES lv_img1_size.
DESCRIBE TABLE lt_hex2 LINES lv_img2_size.
lv_img1_size = lv_img1_size * 255.
lv_img2_size = lv_img2_size * 255.
*Attach Images
clear: lo_document.
lo_document->add_attachment(
   EXPORTING
     i_attachment_type     = 'png'                  " Document Class for Attachment
     i_attachment_subject = 'img1'                " Attachment Title
     i_attachment_size     = lv_img1_size           " Size of Document Content
     i_att_content_hex     = lt_hex1 " Content (Binary)
lo_document->add_attachment(
   EXPORTING
     i_attachment_type     = 'png'                  " Document Class for Attachment
     i_attachment_subject = 'img2'                " Attachment Title
     i_attachment_size     = lv_img2_size           " Size of Document Content
     i_att_content_hex     = lt_hex2 " Content (Binary)
but it throws the dump " Access using NULL object reference is not possible" when i tries to access for method add_attachment...
Thanks,
Siva

Yes there is commit work after that, Below code
      gr_document = cl_document_bcs=>create_document(
                       i_type    = 'HTM'
                        i_text    = t_html
                        i_importance = '5'
                        i_subject = gc_subject ).
*Image from MIME
DATA: o_mr_api         TYPE REF TO if_mr_api.
DATA is_folder TYPE boole_d.
DATA l_img1 TYPE xstring.
DATA l_img2 TYPE xstring.
DATA l_loio TYPE skwf_io.
DATA: lo_document   TYPE REF TO cl_document_bcs.
IF o_mr_api IS INITIAL.
   o_mr_api = cl_mime_repository_api=>if_mr_api~get_api( ).
ENDIF.
CALL METHOD o_mr_api->get
   EXPORTING
     i_url              = '/SAP/PUBLIC/ZDEMO/tick.png'
   IMPORTING
     e_is_folder        = is_folder
     e_content          = l_img1
     e_loio             = l_loio
   EXCEPTIONS
     parameter_missing = 1
     error_occured      = 2
     not_found          = 3
     permission_failure = 4
     OTHERS             = 5.
CALL METHOD o_mr_api->get
   EXPORTING
     i_url              = '/SAP/PUBLIC/ZDEMO/Delete.png'
   IMPORTING
     e_is_folder        = is_folder
     e_content          = l_img2
     e_loio             = l_loio
   EXCEPTIONS
     parameter_missing = 1
     error_occured      = 2
     not_found          = 3
     permission_failure = 4
     OTHERS             = 5.
*Convert XSTRING to ITAB
DATA :lt_hex1 TYPE solix_tab,
       lt_hex2 TYPE solix_tab,
       ls_hex LIKE LINE OF lt_hex1,
       lv_img1_size TYPE sood-objlen,
       lv_img2_size TYPE sood-objlen.
CLEAR : lt_hex1, lt_hex2, ls_hex, lv_img1_size, lv_img2_size.
WHILE l_img1 IS NOT INITIAL.
   ls_hex-line = l_img1.
   APPEND ls_hex TO lt_hex1.
   SHIFT l_img1 LEFT BY 255 PLACES IN BYTE MODE.
ENDWHILE.
WHILE l_img2 IS NOT INITIAL.
   ls_hex-line = l_img2.
   APPEND ls_hex TO lt_hex2.
   SHIFT l_img2 LEFT BY 255 PLACES IN BYTE MODE.
ENDWHILE.
*Findthe Size of the image
DESCRIBE TABLE lt_hex1 LINES lv_img1_size.
DESCRIBE TABLE lt_hex2 LINES lv_img2_size.
lv_img1_size = lv_img1_size * 255.
lv_img2_size = lv_img2_size * 255.
*Attach Images
create object lo_document type cl_document_bcs.
lo_document->add_attachment(
   EXPORTING
     i_attachment_type     = 'png'                  " Document Class for Attachment
     i_attachment_subject = 'img1'                " Attachment Title
     i_attachment_size     = lv_img1_size           " Size of Document Content
     i_att_content_hex     = lt_hex1 " Content (Binary)
lo_document->add_attachment(
   EXPORTING
     i_attachment_type     = 'png'                  " Document Class for Attachment
     i_attachment_subject = 'img2'                " Attachment Title
     i_attachment_size     = lv_img2_size           " Size of Document Content
     i_att_content_hex     = lt_hex2 " Content (Binary)
       "Add document to send request
       CALL METHOD gr_send_request->set_document( gr_document ).
       TRY.
         CALL METHOD gr_send_request->SET_SEND_IMMEDIATELY
           EXPORTING
             I_SEND_IMMEDIATELY = 'X'.
*    CATCH CX_SEND_REQ_BCS INTO BCS_EXCEPTION .
**Catch exception here
       ENDTRY.
       DATA: LO_SENDER TYPE REF TO IF_SENDER_BCS VALUE IS INITIAL.
       TRY.
         LO_SENDER = CL_SAPUSER_BCS=>CREATE( SY-UNAME ). "sender is the logged in user
* Set sender to send request
         gr_send_request->SET_SENDER(
         EXPORTING
         I_SENDER = LO_SENDER ).
*    CATCH CX_ADDRESS_BCS.
****Catch exception here
       ENDTRY.
       "Send email
       CALL METHOD gr_send_request->send(
         EXPORTING
           i_with_error_screen = 'X'
         RECEIVING
           result              = gv_sent_to_all ).
       IF gv_sent_to_all = 'X'.
         WRITE 'Email sent!'.
       ENDIF.
       "Commit to send email
       COMMIT WORK.
       "Exception handling
     CATCH cx_bcs INTO gr_bcs_exception.
       WRITE:
         'Error!',
         'Error type:',
         gr_bcs_exception->error_type.
   ENDTRY.

ESS~ WebDynpro ~ZERO object reference not possible

Hello,
this is about ESS (Mexican) -> IT 021
I ESS Prtaol I am getting the follwing error.
Root Cause
The initial exception that caused the request to fail, was:
   com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Access with ZERO object reference not possible., error key: RFC_ERROR_SYSTEM_FAILURE
    at com.sap.pcuigp.xssfpm.java.MessageManager.raiseException(MessageManager.java:102)
    at com.sap.xss.per.fc.persinfo.FcPersInfo.onCleanup(FcPersInfo.java:499)
    at com.sap.xss.per.fc.persinfo.wdp.InternalFcPersInfo.onCleanup(InternalFcPersInfo.java:536)
    at com.sap.xss.per.fc.persinfo.FcPersInfoInterface.onCleanup(FcPersInfoInterface.java:247)
    at com.sap.xss.per.fc.persinfo.wdp.InternalFcPersInfoInterface.onCleanup(InternalFcPersInfoInterface.java:249)
    ... 38 more
Inputs to solve this are welcome
~Thanks

Hi ,
Are you editing ESS WebDynpro applications ? If its a error in the standard component its a product issue and u can raise a OSS message.
But I doubt , you have edited the same.
In that case , can u post the code in FcPersonalInfo s interface controller 's onCleanUp function.
Regards
Bharathwaj

What is the use of passing object reference to itself ?

What is the use of passing object reference to itself ?
regards,
namanc

There is an use for returning an object reference from itself, for instance:
class C {
public:
     C append(C c) {
         // do something interesting here, and then:
         return this;
}You can "chain" calls, like this:
C c = new C();
C d = new C();
C e = new C();
c.append (d).append (e);Maybe the OP has "inverted" the common usage, or thought about a static method of a class C that requires a parameter of type C (effectively being a sort of "non-static method").
class C {
    static void doAnotherThing (C c) {
        c.doSomething(); //-- effectively C.doAnotherThing(c) is an "alternative syntax" for c.doSomething()

Using == with String object references

Hi,
I understand that using the == operator to compare two String object references in Java will yield false for two different object references even when the contents are the same, and that you are supposed to use the method .equals() instead. However, in my program the == operator actually works for two different object references that point to the same object since it yields true! I don't understand why it works in my program when it shouldn't. Does someone know why?
Thanks!

overrule. wrote:
warnerja wrote:
... unless some sneaky thread jumps in and changes the a or b reference right before the expression (a == b) were evaluated. This would also assume a or b had greater scope than simply local method variables that only one thread could access.
Just being a nitpickCould you provide an example of how that "greater scope" may look like in this case.
* Greater scope.
* @author Cynthia G.
* @see http://forums.sun.com/thread.jspa?messageID=10520796
public class ObjectAssignmentTest {
static Object a; // outer scope: class variable
static Object b; // outer scope: class variable
public static void main(String[] args) throws InterruptedException {
    a = new Object();
    b = a;
    new Thread(new Runnable() {
      public void run() { ObjectAssignmentTest.b = new Object(); }
    }).start();
    System.out.println(a == b ? "equal" : "not equal");
}For the record, this code is not even guaranteed to make the objects unequal with == before their equality is tested; both threads may go in parallel, the main thread first or the modifying thread first!
s

How can I use a COM object that does not have a type library?

Hello,
I've created a com server in python for which I do not have a type library. I am able to call functions for this application in Python, TCL, I'm sure VB, etc. without the type library.
Must I have a type library registered to use this COM object with Labview? I was hoping I could simply supply the name to the refnum (or the GUID) then call functions by passings strings to the invoke node. This does not seem to be possible - am I missing something?
In the event that I cannot use a com server without a type library. Any recommendataions on how to create one? I'm wondering if I can use the same GUID and create a shell in LabWindows which generates the IDL/TBD file I need for Labview to see my
com server.
Any help is greatly appreciated.
73,
Timothy

Timothy Toroni wrote:
> Thanks for the info, however their example is labview server and
> python client. I'm going the other way. It's good to know about
> LabPython though...
>
> As of now, it seems to be there is no way to use a COM object without
> a type library from inside LabView.
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Methode Nodes correctly. Otherwise it would need to have a special
Property and Method Node with a configuration dialog similar to the Call
Library Node, but a LOT more complicated. Not sure many people could
make use of that, and it would be a very tiring experience trying to get
things setup in that way, by going through the edit, test, and crash
cycle over and over again.
Rolf Kalberm
atter
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CIT Engineering Netherlands
a division of Test & Measurement Solutions

Editing sound in PP CS5 using trial of Audition CS5.5 not possible??

I have PremierPro CS5 and downloaded a trial of Audition CS 5.5. The option "Edit in Audition" in PP CS5 is greyed out, so I cannot test the sound editing interaction between the two PP and Audition. What is wrong? Is it not possible to use PP CS5 with Audition CS5.5, is it not possible in the trial version of Audition, or am I doing something else wrong...?
Greatful for your time and help!
Håkan

The connection only works if the Premiere version number is the same as, or higher than, the Audition version. So, in my system PPro CS5.5 to Audition 3 is OK, but PPro CS5 to Audition 5.5 is not, as you have found.

Is it possible to use events for objects that do not use swing or awt

Dear Experts
I want to know if events are possible with plain java objects. A simple class that is capable of firing an event and another simple class that can receive that event. My question is
1. If it is possible - then what is the approach that needs to be taken and would appreciate an example.
2. Is Observer Pattern in java going to help?
To explain further i am doing [Add,Modify,Delete,Traverse] Data tutorial using swing in Net beans. I have a ButtonState Manager class that enables and disables buttons according to a given situation. For example if add is clicked the modify button becomes Save and another becomes Cancel. The other buttons are disabled. What i want is the ButtonStateManager class to do a little further - i.e. if Save is clicked it should report to DBClass that it has to save the current record which was just added. I am foxed how this can be done or what is the right way. Thanks for reading a long message. Appreciate your help.
Best regards

Thanks Kayaman
i guess i am doing something else maybe it is crazy but i need to work further i guess... i cant post the entire code as it is too big but some snippets
public class DatabaseApplication extends javax.swing.JFrame {
    ButtonStateManager bsm;
    /** Creates new form DatabaseApplication */
    public DatabaseApplication() {
        initComponents();
        // ButtonStateManager has a HUGE constructor that takes all the buttons as argument!
        bsm = new ButtonStateManager(
                btnAdd,
                btnModify,
                btnDelete,
                btnQuit,
                btnMoveNext,
                btnMovePrevious,
                btnMoveLast,
                btnMoveFirst );One of the methods in the ButtonStateManager Class is as follows
private void modifyButtonState()
        btnAdd.setText("Save");
        btnModify.setEnabled(false);
        btnDelete.setText("Cancel");
        btnQuit.setEnabled(false);
        ...Finally the Crazy way i was trying to do ... using EXCEPTIONS!
void modifyClicked() throws DBAction
        if(btnModify.getText().equalsIgnoreCase("MODIFY"))
            modifyButtonState();
        else
            throw new DBAction("SaveAddedRecord");
    }And Finally how i was Tackling exceptions....
private void btnAddActionPerformed(java.awt.event.ActionEvent evt) {
      try {
            bsm.addClicked();
        } catch (Exception e1) {
            processDBAction(e1.getMessage());
    private void processDBAction(String msg)
        if(msg.equalsIgnoreCase("SAVEMODIFIEDRECORD"))
            System.err.println(msg);
            bsm.normalButtonState();
        }Edited by: standman on Mar 30, 2011 4:51 PM

How do you create folders in my email account using a pop server. If not possible is there an app that makes it possible or does the new iOS5 make it possible?

Organizing emails with a POP server

Russell D wrote:
This is very disappointing, and i find it hard to believe that Apple would do this intentionally. It worked on previous versions of email application. Apple please don't dishonor the image of Steve Jobs this way. Fix this right away. I can't think of anything more basic than being able to organize the email that you download into folders. This absolutely ***** ... What a stinker.....
I can't think of anything more idiotic than invoking the memory of Jobs here. Are you truly unaware that the iPad and iOS is pretty much exactly the way he wanted it to be, just like about everything else Apple?
As to your claim of "previous email applications", certainly none in iOS ever did that, and the only folders you can create and manipulate in POP accounts are those local to only that single machine or platform, not particularly helpful or desirable in today's environments.

Access via 'NULL' object reference not possible.

hi all,
                   i am getting the following error in my application(getting data from 2 data base table and kept in internal table and binding that 2 internal table to two context)
in st22 i have this.
Error analysis
    An exception occurred that is explained in detail below.
    The exception, which is assigned to class 'CX_SY_REF_IS_INITIAL', was not
     caught in
    procedure "PARSE_XML_DATA" "(METHOD)", nor was it propagated by a RAISING
     clause.
    Since the caller of the procedure could not have anticipated that the
    exception would occur, the current program is terminated.
    The reason for the exception is:
    You attempted to use a 'NULL' object reference (points to 'nothing')
    access a component.
    An object reference must point to an object (an instance of a class)
    before it can be used to access components.
    Either the reference was never set or it was set to 'NULL' using the
    CLEAR statement.
gettong error at line 52.
24       data: parseerror type ref to if_ixml_parse_error,
25             str        type string,                         "#EC NEEDED
26             i          type i,                              "#EC NEEDED
27             count      type i,
28             index      type i.
29       count = parser->num_errors( ).
30 *      write: count, ' parse errors have occured:'.
31       index = 0.
32       while index < count.
33         parseerror = parser->get_error( index = index ).
34         i = parseerror->get_line( ).
35 *        write: 'line: ', i.
36         i = parseerror->get_column( ).
37 *        write: 'column: ', i.
38         str = parseerror->get_reason( ).
39 *        write: str.
40         index = index + 1.
41       endwhile.
42     endif.
43   endif.
44
45   data l_ref_ixml_elem type ref to if_ixml_element.
46   l_ref_ixml_elem = l_ref_doc->get_root_element( ).
47
48   data l_ref_node_list type ref to if_ixml_node_list.
49   data l_ref_child type ref to if_ixml_node.
50   data nodes_index type i value 0.
51   data l_count type i.
>>>>   l_ref_node_list = l_ref_ixml_elem->get_children( ).
53   while nodes_index < l_ref_node_list->get_length( ).
54     l_ref_child = l_ref_node_list->get_item( nodes_index ).
55     nodes_index = nodes_index + 1.
56     l_count = l_ref_child->num_children( ).
57     if l_count > 0.
58       me->parse_xml_subnode( subnode                 = l_ref_child index = 0
59                              with_initial_attributes = with_initial_attributes ).
60     elseif with_initial_attributes = abap_true.
61       me->parse_xml_subnode( subnode                 = l_ref_child index = 0
62                              with_initial_attributes = with_initial_attributes ).
pls help me
regards,
vinoth.

hi thomas,
                    thanks for ur reply.
this is my scenario:
my context:
                    >contract(root node with cardinality 1:1)
                          >mandt_ekko( 1:1)
                                ebeln
                          >disp_ekko(o:n)
                               bstyp
                               lifnr
                         >disp_ekpo(o:n)
                              ebelp
                              txz01
based on ebeln fetched at run time. i have to display ekko and ekpo table details in form.i have fetched values based on that ebeln and put it in 2 internal table from ekko and ekpo table and binded that to context.but getting error.
my code:
method ONACTIONSUBMIT .
DATA lo_nd_contract TYPE REF TO if_wd_context_node.
DATA lo_nd_mandt_ekko TYPE REF TO if_wd_context_node.
DATA lo_el_mandt_ekko TYPE REF TO if_wd_context_element.
DATA ls_mandt_ekko TYPE wd_this->element_mandt_ekko.
* navigate from <CONTEXT> to <CONTRACT> via lead selection
lo_nd_contract = wd_context->get_child_node( name = wd_this->wdctx_contract ).
* navigate from <CONTRACT> to <MANDT_EKKO> via lead selection
lo_nd_mandt_ekko = lo_nd_contract->get_child_node( name = wd_this->wdctx_mandt_ekko ).
* get element via lead selection
lo_el_mandt_ekko = lo_nd_mandt_ekko->get_element( ).
* get all declared attributes
lo_el_mandt_ekko->get_static_attributes(
    IMPORTING
      static_attributes = ls_mandt_ekko ).
DATA lo_nd_disp_ekko TYPE REF TO if_wd_context_node.
DATA lo_el_disp_ekko TYPE REF TO if_wd_context_element.
DATA ls_disp_ekko TYPE wd_this->element_disp_ekko.
* navigate from <CONTEXT> to <CONTRACT> via lead selection
lo_nd_contract = wd_context->get_child_node( name = wd_this->wdctx_contract ).
* navigate from <CONTRACT> to <DISP_EKKO> via lead selection
lo_nd_disp_ekko = lo_nd_contract->get_child_node( name = wd_this->wdctx_disp_ekko ).
* @TODO handle not set lead selection
IF lo_nd_disp_ekko IS INITIAL.
ENDIF.
* get element via lead selection
lo_el_disp_ekko = lo_nd_disp_ekko->get_element( ).
* @TODO handle not set lead selection
IF lo_el_disp_ekko IS INITIAL.
   lo_el_disp_ekko = lo_nd_disp_ekko->create_element( ).
ENDIF.
data: IT_EKKO TYPE standard table of EKKO,
      lo_nd_snode_1 TYPE REF TO if_wd_context_node.
select * from EKKO into table it_EKKO WHERE EBELN = ls_mandt_ekko-EBELN.
   if sy-subrc eq 0.
    lo_nd_snode_1 = wd_context->path_get_node( 'CONTRACT.DISP_EKKO' ).
    lo_nd_snode_1->bind_table( it_EKKO ).
endif.
DATA lo_nd_disp_ekpo TYPE REF TO if_wd_context_node.
DATA lo_el_disp_ekpo TYPE REF TO if_wd_context_element.
DATA ls_disp_ekpo TYPE wd_this->element_disp_ekpo.
* navigate from <CONTEXT> to <CONTRACT> via lead selection
lo_nd_contract = wd_context->get_child_node( name = wd_this->wdctx_contract ).
* navigate from <CONTRACT> to <DISP_EKPO> via lead selection
lo_nd_disp_ekpo = lo_nd_contract->get_child_node( name = wd_this->wdctx_disp_ekpo ).
* @TODO handle not set lead selection
IF lo_nd_disp_ekpo IS INITIAL.
ENDIF.
* get element via lead selection
lo_el_disp_ekpo = lo_nd_disp_ekpo->get_element( ).
* @TODO handle not set lead selection
IF lo_el_disp_ekpo IS INITIAL.
    lo_el_disp_ekpo = lo_nd_disp_ekpo->create_element( ).
ENDIF.
data: lo_nd_snode_2 TYPE REF TO if_wd_context_node,
      IT_EKPO TYPE standard table of EKPO.
select * from EKPO into table it_EKPO WHERE EBELN = ls_mandt_ekko-EBELN.
   if sy-subrc eq 0.
    lo_nd_snode_2 = wd_context->path_get_node( 'CONTRACT.DISP_EKPO' ).
    lo_nd_snode_2->bind_table( it_EKPO ).
ENDIF.
endmethod.
when i execute got that error.any help highly appreciated.
regards,
vinoth.
Edited by: Thomas Jung on Aug 10, 2009 8:10 AM

Access vis NULL object reference.

Hi experts,
I have a component having context->node1->usernr
usernr is one of the attributes in node1.
node1 has cardinality 0..n
I have two views, view1 and view2 in the window.
both the view contexts have mapping with node1 of component controller context.
View1 has a table that shows usernr as a column and view2 has an inputfield, the value of which is bound to usernr.
On clicking a button in view1, I am creating an element of node1 and binding it to the node. this os working fine. Also I am firing the outplug of view1 which is connected to inplug of view2.
I debugged the view2 and it is going upto the HANDLEIN_view2_inputplug
Then I just get this dump "Access via 'NULL' object reference not possible."
Error in the ABAP Application Program
The current ABAP program "CL_WDR_VIEW_ELEMENT_ADAPTER===CP" had to be terminated because it has come across a statement that unfortunately cannot be executed.
Error analysis
You attempted to use a 'NULL' object reference (points to 'nothing') access a component (variable: " ").
An object reference must point to an object (an instance of a class) before it can be used to access components.
Either the reference was never set or it was set to 'NULL' using the CLEAR statement.
Information on where terminated
Termination occurred in the ABAP program "CL_WDR_VIEW_ELEMENT_ADAPTER===CP" -     in "GET_ATTRIBUTE_EXTERNAL".
The main program was "SAPMHTTP ".
In the source code you have the termination point in line 10 of the (Include) program "CL_WDR_VIEW_ELEMENT_ADAPTER===CM00Q".
Source Code Extract
Line SourceCde
    1 method get_attribute_external.
    2
    3   data data_container type ref to cl_wdr_data_container.
    4   data attribute type wdr_attribute_pointer.
    5   data client_component type ref to cl_wdr_client_component.
    6
    7   attribute-attribute_name = i_binding->attribute_name.
    8   attribute-element ?= get_bound_element( i_binding ).
    9   client_component ?= attribute-element->node->controller->component->data_container_superio
   11   data_container = client_component->data_container.
   12
   13   e_value = data_container->get_and_format( attribute = attribute ).
   14
   15 endmethod.
Error is at line 9
Chosen variables
Name
    Val.
No.      21 Ty.          METHOD
Name CL_WDR_VIEW_ELEMENT_ADAPTER=>GET_ATTRIBUTE_EXTERNAL
I_BINDING
    0000000C
    D0000002
E_VALUE
SY-REPID
    CL_WDR_VIEW_ELEMENT_ADAPTER===CP
    0000000000000000000000000000000000000000
    0000000000000000000000000000000000000000
    4455455544554444445544455453334522222222
    3CF742F6957F5C5D5E4F1410452DDD3000000000
%_DUMMY$$
    0000
    0000
    2222
    0000
ATTRIBUTE-ATTRIBUTE_NAME
    USERNR
    000000
    000000
    554545
    5352E2
I_BINDING->ATTRIBUTE_NAME
    USERNR
    000000
=======================================================================
The thing that is worrying me is that nothing like this was happening at all earlier. I tested the application quite a few number of times and then suddenly this started. Since then it has not stopped.
I am unable to understand the reason for this. Pl help.
Regards,
Reema.
Edited by: Reema Shahbazkar on Jun 12, 2008 3:28 AM

Hey Reema,
Were you able to resolve this error. I am facing exactly the same issue currently . My primary data container nodes belong to the component controller. I did verify the same for any change in the cardinality and dont see anythign thats changed which could be impacting my views. In any case, I had kept the cardinality as 0...n initially to be safe since there cud be scenarios where no values can exist for the same at runtime.
Please do let me know how you happened to resolve this.
Thanks,
Puja.

Access via 'NULL' object reference not possible Error in WD application execution

Experts,
I am getting following error for web dynpro application intermittently, please find following error log:
What happened?
    Error in the ABAP Application Program
    The current ABAP program "CL_SALV_WD_C_TABLE_V_TABLE====CP" had to be
     terminated because it has
    come across a statement that unfortunately cannot be executed.
Error analysis
    An exception occurred that is explained in detail below.
    The exception, which is assigned to class 'CX_SY_REF_IS_INITIAL', was not
     caught in
    procedure "IF_SALV_WD_COMP_TABLE_DATA_MAP~MAP_TO_RESULT_CHANGES" "(METHOD)",
     nor was it propagated by a RAISING clause.
    Since the caller of the procedure could not have anticipated that the
    exception would occur, the current program is terminated.
    The reason for the exception is:
    You attempted to use a 'NULL' object reference (points to 'nothing')
    access a component.
    An object reference must point to an object (an instance of a class)
    before it can be used to access components.
    Either the reference was never set or it was set to 'NULL' using the
    CLEAR statement.
Information on where terminated
    Termination occurred in the ABAP program "CL_SALV_WD_C_TABLE_V_TABLE====CP" -
     in "IF_SALV_WD_COMP_TABLE_DATA_MAP~MAP_TO_RESULT_CHANGES".
    The main program was "SAPMHTTP ".
    In the source code you have the termination point in line 168
    of the (Include) program "CL_SALV_WD_C_TABLE_V_TABLE====CM080".
    The termination is caused because exception "CX_SY_REF_IS_INITIAL" occurred in
    procedure "IF_SALV_WD_COMP_TABLE_DATA_MAP~MAP_TO_RESULT_CHANGES" "(METHOD)",
     but it was neither handled locally nor declared
    in the RAISING clause of its signature.
    The procedure is in program "CL_SALV_WD_C_TABLE_V_TABLE====CP "; its source
     code begins in line
    1 of the (Include program "CL_SALV_WD_C_TABLE_V_TABLE====CM080 ".
Line SourceCde
138
139         "Set new value to result data
140         if ls_changelist-r_old_value is not bound.
141           "insert new table line
142           lr_component->r_result_data->if_salv_bs_r_data_table_edit~insert_table_line(
143             index = l_result_data_index ).
144         else.
145           "Modify existing table line
146           lr_component->r_result_data->if_salv_bs_r_data_table_edit~set_table_line(
147             index     = l_result_data_index
148             data_line = <ls_table> ).
149         endif.
150       else.
151         "A single attribute value has to be updated
152
153         "Get context element from output data node
154         data lr_element type ref to if_wd_context_element.
155
156         "Retrieve the element to update from the data output node
157         if l_mass_edit_row_inserted = abap_true.
158           "The Element only exists virtually due to the mass edit mode.
159           lr_element = lr_node->get_element( l_mass_edit_virtual_index ).
160           l_mass_edit_row_inserted = abap_false.
161         else.
162           "The element already exists in the data output node.
163           lr_element = lr_node->get_element( ls_changelist-index ).
164         endif.
165
166         "Determine if the cell to be updated is set to null (Nullable)
167         data l_is_null type abap_bool.
>>>>>         l_is_null = lr_element->is_attribute_null( ls_changelist-attribute ).
169
170         "Update result data with change
171         if <l_value> is assigned.
172           "update ResultData with cell value
173           lr_component->r_result_data->if_salv_bs_r_data_table_edit~set_table_cell(
174             index     = l_result_data_index
175             attribute = ls_changelist-attribute
176             data_cell = <l_value>
177             is_null   = l_is_null ).
178         else.
179           "Update result data without any updated cell value
180           lr_component->r_result_data->if_salv_bs_r_data_table_edit~set_table_cell(
181             index     = l_result_data_index
182             attribute = ls_changelist-attribute
183             is_null   = l_is_null ).
184         endif.
Please help us on what could be the reason behind this?
Thanks,
Madan

Hi Madan,
It seems that, there are user settings saved and the attribute in the layout settings is not available with current changes.
try to delete the user settings if any.
Please find my answer in the below link
Reset user settings in WDA
Hope this helps you.
Regards,
Rama

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More reference: http://sharepointfieldnotes.blogspot.com/2014/04/uploading-documents-and-setting.html
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