Bug 183888 BIRT designer - Cube in data explorer
Current behavior - The data explorer view allows uer to change the order of a group level in a hierrachy. Expected behavior - user should not be allowed to change the order of the group level in data explorer view. - Instead user can user cube builder dialog to change the order.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DNDUtil.java
{
				e.printStackTrace( );
			}
			return null;
		}
		if ( source instanceof DesignElementHandle )
		{
			IDesignElement copyElement = ( (DesignElementHandle) source ).copy( );
			return copyElement;
		}
		if ( source instanceof IDesignElement )
		{
			try
			{
				return ( (IDesignElement) source ).clone( );
			}
			catch ( CloneNotSupportedException e )
			{
				e.printStackTrace( );
			}
		}
		if ( source instanceof SlotHandle )
		{
			SlotHandle slot = (SlotHandle) source;
			Object[] array = new Object[slot.getCount( )];
			for ( int i = 0; i < array.length; i++ )
			{
				array[i] = slot.get( i );
			}
			return cloneSource( array );