Symptoms

1. The option to choose homepage in Browse >> Space Admin >> Edit Space Details is not selectable.

2. Attempting to edit or remove this page causes the following error:

   java.lang.NullPointerException
   at com.atlassian.confluence.pages.actions.AbstractCreateAndEditPageAction.setTitle
   (AbstractCreateAndEditPageAction.java:311) 
   ...
   

3. An attempt to add the title and save the page results in the following error:

   java.lang.NullPointerException
   at com.atlassian.confluence.pages.actions.EditPageAction.validate(EditPageAction.java:41)
   ...
   

Diagnosis

• The "Home" page is an orphaned page in space.
• There is also an additional orphaned page titled $webwork.htmlEncode($content.displayTitle). This can be observed in Browse >> Pages >> Tree View.

Cause

See the following bug reports:

• CONFSERVER-17414 - Doc Import allows empty title (fixed in 3.3.1 and later)
• CONFSERVER-9319 - storePage succeeds in adding multiple pages with an empty string as a title, which can then not be accessed from the user Interface

Resolution

1. Shutdown Confluence

2. Run the following SQL query to get a list of affected pages:

   SELECT contentid FROM content WHERE title IS NULL AND contenttype='PAGE';

3. Rename the affected pages:

   UPDATE content SET title='Your Title', lowertitle='your title' WHERE contentid in (SELECT contentid FROM content WHERE title IS NULL AND contenttype='PAGE');

4. Restart Confluence
5. Rebuild the index