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
{
				getTableAdapter( ).insertColumns( colCount,
						colNumbers[colCount - 1] );
			}
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
		
	}
	/**
	 * merge the selection cell
	 */
	public void merge( )
	{
		List selections = TableUtil.getSelectionCells( this );
		if ( selections.size( ) == 1 )
		{
			return;
		}
		int size = selections.size( );
		TableCellEditPart[] parts = new TableCellEditPart[size];
		selections.toArray( parts );
		TableCellEditPart[] caleNumber = getMinAndMaxNumber( parts );
		TableCellEditPart minRow = caleNumber[0];
		TableCellEditPart maxRow = caleNumber[2];
		TableCellEditPart maxColumn = caleNumber[3];
		TableCellEditPart cellPart = caleNumber[0];
		ArrayList list = new ArrayList( );