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
/**
	 * Delete specified column
	 * 
	 * @param numbers
	 */
	public void deleteColumn( int[] numbers )
	{
		try
		{
			getTableAdapter( ).deleteColumn( numbers );
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
		}
	}
	/**
	 * inserts a row after the row number
	 * 
	 * @param rowNumber
	 */
	public void insertRow( int rowNumber )
	{
		insertRow( -1, rowNumber );
	}
	/**
	 * Inserts a single row at give position.
	 * 
	 * @param relativePos
	 *            The relative position to insert the new row.