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
layoutManagerLayout( );
	}
	/**
	 * Gets the top, left, right, bottom of edit part.
	 * 
	 * @param parts
	 * @return cell edit parts.
	 */
	public TableCellEditPart[] getMinAndMaxNumber( TableCellEditPart[] parts )
	{
		if ( parts == null || parts.length == 0 )
		{
			return null;
		}
		int size = parts.length;
		TableCellEditPart leftTopPart = parts[0];
		TableCellEditPart leftBottomPart = parts[0];
		TableCellEditPart rightBottomPart = parts[0];
		TableCellEditPart rightTopPart = parts[0];
		for ( int i = 1; i < size; i++ )
		{
			TableCellEditPart part = parts[i];
			if ( part == null )
			{
				continue;
			}
			if ( part.getRowNumber( ) <= leftTopPart.getRowNumber( )
					&& part.getColumnNumber( ) <= leftTopPart.getColumnNumber( ) )
			{
				leftTopPart = part;