[TAP5-1043] PropertyDisplayBlocks causes NullPointerException when property of type Calendar is null

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.2.0
• Fix Version/s: 5.2.0
• Component/s: tapestry-core
• Assignee: Igor Drobiazko
• Reporter: Pierce Wetter
• Created: 03/Mar/10 23:23
• Updated: 05/Mar/10 22:14
• Resolved: 05/Mar/10 22:14

Description

Using a Bean Display Grid with a bean with a null calendar throws a null pointer exception.

org.apache.tapestry5.corelib.pages.PropertyDisplayBlocks.getCalendarDate(PropertyDisplayBlocks.java:56)

Fix is trivial, simple check that the value is not null before calling getTime().

public Date getCalendarDate()
{
Calendar calendar = (Calendar) context.getPropertyValue();
if (calendar!=null)

{ return calendar.getTime(); }

return null;
}