Bug 172273 Grid insert to masterpage dosen't display propertily [05]
Build Number: 2.2.0.v20070131-1050 Description: As the screenshot, insert a grid (3*3) in the master page.It can't be display propertily. Step to reproduce: 1. new a report and switch to masterpage 2. insert a grid (3*3) Actual result: Please refer to the screenshot, it's abnormal.
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/metadata/SlotDefn.java
for ( int i = 0; i < dd.getExtensions( ).size( ); i++ )
			{
				ExtensionElementDefn extension = (ExtensionElementDefn) dd
						.getExtensions( ).get( i );
				if ( extension.isKindOf( dd
						.getElement( ReportDesignConstants.REPORT_ITEM ) )
						&& PeerExtensionLoader.EXTENSION_POINT
								.equals( extension.extensionPoint )
						&& !contentsWithExtensions.contains( extension ) )
					contentsWithExtensions.add( extension );
			}
		}
		return contentsWithExtensions;
	}
	/**
	 * Builds the semantic information for the slot.
	 * 
	 * @throws MetaDataException
	 *             if any violation occurs during build of the slot.
	 */
	protected void build( ) throws MetaDataException
	{
		if ( contentTypes.isEmpty( ) )
			throw new MetaDataException( new String[]{this.name},
					MetaDataException.DESIGN_EXCEPTION_MISSING_SLOT_TYPE );
		
		
		if ( displayNameID == null )
			throw new MetaDataException( new String[]{name},
					MetaDataException.DESIGN_EXCEPTION_MISSING_SLOT_NAME );