Bug 168148 [regression]Table with chart from library fails to preview.[01][0001]
Description: Table with chart from library fails to preview. Build number:2.1.2.v20061215 and 2.2.0.v20061213 Steps to reproduce: 1.Create a library, create a sample DB data source and data set: select * from orders 2.Insert a tabel to the library, bind data set to the table 3.Insert a group for the tabel ,group by "row["OrderDate"]", Interval: Year, Range:1 4.Drag a chart into 3rd cell on group row, bar chart, go to "Select Data" tab , bind data set, X Series:row["OrderDate"], Y Series:row["OrderNumger"]; click "Finish" button 5.Create a new report, use the library 6.Drag the table in the library to the report. 7.Preview in html. Expected Result: Report content displays without errors. Actual result: Error happened while running the report.(same for 2.1.2 and 2.2.0) Error log: org.eclipse.birt.report.service.api.ReportServiceException: Error happened while running the report
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/extension/PeerExtensibilityProvider.java
*/
	HashMap extensionPropValues = new HashMap( );
	/**
	 * Constructs the peer extensibility provider with the extensible element
	 * and the extension name.
	 * 
	 * @param element
	 *            the extensible element
	 * @param extensionName
	 *            the extension name
	 */
	public PeerExtensibilityProvider( DesignElement element,
			String extensionName )
	{
		super( element, extensionName );
	}
	/**
	 * Returns the read-only list of all property definitions, including not
	 * only those defined in Model and extension definition file, but those
	 * defined by <code>IReportItem</code>. The returned list is read-only,
	 * so no modification is allowed on this list. Each one in list is the
	 * instance of <code>IPropertyDefn</code>.
	 * 
	 * @return the read-only list of all property definitions. Return empty list
	 *         if there is no property defined.
	 */
	public List getPropertyDefns( )
	{
		List props = super.getPropertyDefns( );
		PeerExtensionElementDefn extDefn = (PeerExtensionElementDefn) getExtDefn( );