Bug 118750 Insert group for table from library, system throws exception.
Insert group for table from library, system throws exception. Steps: 1.Insert a tabel from library 2.Insert group Actual Results: 1.System throws exception A Birt exception occurred. Plug-in Provider:Eclipse.org Plug-in Name:BIRT Model Plug-in ID:org.eclipse.birt.report.model Version:1.0.1 Error Code:Error.ContentException.STRUCTURE_CHANGE_FORBIDDEN Error Message:Element "report.Body[1]" is child element or a virtual element( inside the child ), can not change its structure. Expected Results: 1.Can be inserted group
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/core/model/schematic/TableHandleAdapter.java
if ( checkDirty( ) || rowInfo.isEmpty( ) )
		{
			reload( );
		}
		return rows;
	}
	protected void clearBuffer( )
	{
		rowInfo.clear( );
		rows.clear( );
	}
	/**
	 * Gets all rows list.
	 * 
	 * @return The rows list.
	 */
	public void initRowsInfo( )
	{
		clearBuffer( );
		buildRowInfo( );
		caleRowInfo( rows );
	}
	protected void buildRowInfo( )
	{
		insertRowInfo( getTableHandle( ).getHeader( ),
				TABLE_HEADER,
				TABLE_HEADER );
		SlotHandle groups = getTableHandle( ).getGroups( );
		int number = 0;
		for ( Iterator itor = groups.iterator( ); itor.hasNext( ); )