Bug 130495 Get rid of SessionHandleAdapter
Now, we use SessionHandleAdapter to keep current active report deisng. That's a bad practive for editor swith and rebuild will cuase lots of problmes. Need find way to replace it.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/ui/editors/MultiPageReportEditor.java
return selectionProvider.getSelection( );
			}
			return globalSelection;
		}
		/*
		 * (non-Javadoc) Method declared on <code> ISelectionProvider </code> .
		 */
		public void setSelection( ISelection selection )
		{
			IEditorPart activeEditor = ( (FormEditor) getMultiPageEditor( ) ).getActivePageInstance( );
			if ( activeEditor != null )
			{
				ISelectionProvider selectionProvider = activeEditor.getSite( )
						.getSelectionProvider( );
				if ( selectionProvider != null )
					selectionProvider.setSelection( selection );
			}
			else
			{
				this.globalSelection = selection;
				fireSelectionChanged( new SelectionChangedEvent( this,
						globalSelection ) );
			}
		}
	}
	/**
	 * Constructor
	 */
	public MultiPageReportEditor( )
	{