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
IModelAdapterHelper
{
	private static final int DELAY_TIME = 1600;
	private DesignElementHandleAdapter peer;
	private AbstractGuideHandle guideHandle = null;
	private boolean isEdited = false;
	
	/**
	 * Constructor
	 * 
	 * @param model
	 */
	public ReportElementEditPart( Object model )
	{
		super( );
		if ( Policy.TRACING_EDITPART_CREATE )
		{
			String[] result = this.getClass( ).getName( ).split( "\\." ); 
			System.out.println( result[result.length - 1]
					+ " >> Created for " 
					+ model );
		}
		setModel( model );
		peer = creatDesignElementHandleAdapter();