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
{
				minColumnnumber = numbers[i];
			}
			width = width
					+ TableUtil.caleVisualWidth( this, getColumn( numbers[i] ) );
			list.add( new DummyColumnEditPart( getColumn( numbers[i] ) ) );
		}
		for ( int i = 0; i < size; i++ )
		{
			int rowNumber = getTableAdapter( ).getRowCount( );
			for ( int j = 0; j < rowNumber; j++ )
			{
				TableCellEditPart part = getCell( j + 1, numbers[i] );
				if ( part != null )
				{
					list.add( part );
				}
			}
		}
		int x = TableUtil.caleX( this, minColumnnumber );
		Rectangle rect = new Rectangle( x,
				0,
				width,
				TableUtil.getTableContentsHeight( this ) );
		setSelectRowAndColumnRect( rect );
		if ( notofyToMedia )
		{
			getViewer( ).setSelection( new StructuredSelection( list ) );
		}
		else