[OAK-9660] NullPointerException When Moving Transient node

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 1.8.8, 1.40.0
• Component/s: core
• Assignee: Unassigned
• Reporter: Bryan Stopp
• Created: 07/Jan/22 18:30
• Updated: 13/Jan/22 14:56

Description

When a node is moved in a uncommitted Session1 (S), that was previously moved in a closed/committed Session0 (S'), any transient children nodes that are moved throw NPEs in the node memory manager tracking the uncommitted state.

 

Steps to reproduce:

1. Start Sling docker container
   1. ` docker run -p 8080:8080 apache/sling`
2. Install demo project 
3. Disable administrative login security, or create a rule for the servlet.
4. Navigate to the Demo servlet

 

The servlet will catch the NPE and display it. The error occurs here. `base` is not null, but `head` is.

It seems that the `base` look up finds the segment metadata from Session0 (S') that has been dispatched (before the current session was created), and not recognizing that the parent is now a transient node in Session1 (S).

Issue Links

• links to: GitHub Pull Request #461