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/ReportElementEditPart.java
public void mouseExited( MouseEvent me )
			{
				delayRemoveGuideFeedBack( );
			}
			public void mouseHover( MouseEvent me )
			{
				addGuideFeedBack( );
			}
			public void mouseMoved( MouseEvent me )
			{
				addGuideFeedBack( );
			}
		} );
		getFigure( ).setFocusTraversable( true );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gef.EditPart#deactivate()
	 */
	public void deactivate( )
	{
		if ( !isActive( ) )
			return;
		removeGuideFeedBack( );
		super.deactivate( );
		if (isDelete( ))
		{
			HandleAdapterFactory.getInstance( ).remove( getModel( ) );
		}