[CLK-32] Null values in Column renderTableData raise exception

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Component/s: core
• Environment: Click-0.15, all enironments
• Assignee: Malcolm Edgar
• Reporter: Geoff Hopson
• Created: 02/Nov/05 10:09
• Updated: 07/Dec/05 02:31
• Resolved: 03/Nov/05 14:58

Description

I have a row in a Table that represents an object instance (eg User). Once of the object attributes (role) is another object. If the User does not have a Role, I get an exception - 'IllegalArgumentException on HTMLStringBuffer - null value parameter' (line 93 in HTMLStringBuffer)

I think the problem is around line 393 in Column.java. A test for a null value before doing a buffer.append() would fix this

I'm subclassing Column right now to override the renderTableData method, which seems to work. The pertinent lines of code are:

(replace line 393 with)
if (columnValue != null)

{ buffer.append(columnValue); }

Or should HTMLStringBuffer be more forgiving? Or both?