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
public DummyRowEditPart( Object model )
		{
			super( model );
			createEditPolicies( );
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.report.designer.internal.ui.editors.schematic.editparts.DummyEditpart#createEditPolicies()
		 */
		protected void createEditPolicies( )
		{
			ReportComponentEditPolicy policy = new ReportComponentEditPolicy( ) {
				protected org.eclipse.gef.commands.Command createDeleteCommand(
						GroupRequest deleteRequest )
				{
					DeleteRowCommand command = new DeleteRowCommand( getModel( ) );
					return command;
				}
			};
			installEditPolicy( EditPolicy.COMPONENT_ROLE, policy );
		}
		public int getRowNumber( )
		{
			RowHandleAdapter adapt = HandleAdapterFactory.getInstance( )
					.getRowHandleAdapter( getModel( ) );
			if ( adapt.getTableParent( ) == null )
			{
				return -1;
			}