Bug 157744 [Regression]GUI has memory leak
Causes by 153732, designer has a regression to hold the report design handle in a hashmap. That causes the report design can not be released.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/editors/schematic/editparts/TableEditPart.java
* @return selected row and column area
	 */
	public Rectangle getSelectRowAndColumnRect( )
	{
		return selectRowAndColumnRect;
	}
	/**
	 * Set selected row and column area.
	 * 
	 * @param selectRowAndColumnRect
	 */
	public void setSelectRowAndColumnRect( Rectangle selectRowAndColumnRect )
	{
		this.selectRowAndColumnRect = selectRowAndColumnRect;
	}
	/**
	 * Gets data set, which is biding on table.
	 * 
	 */
	public Object getDataSet( )
	{
		return getTableAdapter( ).getDataSet( );
	}
	/**
	 * Get the cell on give position.
	 * 
	 * @param rowNumber
	 * @param columnNumber
	 */
	public TableCellEditPart getCell( int rowNumber, int columnNumber )