LO78867: XPAGES: 'XSPDOC.GETDOCUMENT()' IS NULL

APAR status

• Closed as program error.

Error description

• When two Xpages are executing SSJS code involving datasource
  documents, one datasource doc could eventually end up losing
  scope and returning null.
  
  I am providing a sample nsf for reproducing and I have tested
  in 9.0 and 8.5.3 FP4.
  
  The sample code to test this issue is basically this:
  
  for (var i = 0; i < 50000; i++ ) {
    counter++;
    comment = xspDoc.getDocument().getItemValue("COMText");
  }
  
  In my testing, counter would get up to roughly 12000 before
  getDocument returns null. This seems to be entirely based on
  the timing of running two different Xpages simultaneously.
  
  Steps to reproduce:
  
  1. Get nsf file from attachments database
  2. Place nsf on Domino server and make sure to sign all design
  elements
  3. Open the byDealId view and click on "Open iFrames" button.
  Note: In this test case, both Xpages will run inside an iFrame,
  but the same call stack was reproduced without using iFrames in
  a similar test case.
  4. Next you will need to press both "Edit" buttons as quickly
  as possible so that both will be executing at the same time.
  You will reproduce the issue when one of the documents do not
  go into edit mode.
  5. You can view the error condition within a Notes document
  that is created in the nsf in the Error view "byDate". Just
  look for the date/time you tested the issue.
  

Local fix

• LOCAL FIX:
  none
  

Problem summary

• A programming error was found and will be corrected in a future
   release.
  

Problem conclusion

• A programming error was found and will be corrected in a future
   release.
  

Temporary fix

Comments

• This APAR is associated with SPR# RPEA9FU2NH.
  A programming error was found and will be corrected in a future
   release.
  

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  DOMINO SERVER

• Fixed component ID

  5724E6200

Applicable component levels

• R852 PSN

     UP