[CLK-718] NullPointerException for Complex page structure with panels

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 3.0.0, 2.3.0-M1
• Component/s: core
• Environment: Linux, Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
• Assignee: Unassigned
• Reporter: tomasz bandura
• Created: 14/Sep/10 08:15
• Updated: 14/Sep/10 08:25
• Resolved: 14/Sep/10 08:25

Description

For a complex page structure (for Panel embedded on another Panel), exception is raised:

java.lang.NullPointerException
at org.apache.click.control.Panel.createTemplateModel(Panel.java:789)
at org.apache.click.control.Panel.render(Panel.java:752)
at com.ratibor.control.PanelColumn.renderTableDataContent(PanelColumn.java:33)
at org.apache.click.control.Column.renderTableData(Column.java:1191)
at org.apache.click.control.Table.renderBodyRowColumns(Table.java:1879)
(...)

The reason is that the Panel (e.g. childPanel) which is on another Panel (rootPanel) has not parent Page because his parent is Panel (rootPanel) .

Example of complex structure:

mainPage--
-----------------rootPanel-
--------------------------------childPanel1 <-- exception

It also causes problem with access to the page.properties (i.e. $messages.<label>) and velocity does not work correctly (for example $format.date(<date>) )