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
{
			ArrayList retValue = new ArrayList( );
			int cellSize = cells.length;
			for ( int i = 0; i < cellSize; i++ )
			{
				retValue.add( cells[i] );
			}
			return retValue;
		}
	}
	/**
	 * @param list
	 * @return If can merge return true, else false.
	 */
	public boolean canMerge( List list )
	{
		assert list != null;
		int size = list.size( );
		if ( size <= 1 )
		{
			return false;
		}
		RowUIInfomation rowInfo = getRowInfo( ( (CellHandle) list.get( 0 ) ).getContainer( ) );
		if ( rowInfo == null )
		{
			
			return false;
		}
		String first = rowInfo.getRowDisplayName( );
		for ( int i = 1; i < size; i++ )