exprManager.setEntryGroupLevel( ExprManager.OVERALL_GROUP );
	private static void testGroupNameValidation( ExprManager exprManager ) throws DataException	{		HashMap map = exprManager.getGroupKeys( );		Iterator it = map.keySet( ).iterator( );		while ( it.hasNext( ) )		{			Integer level = (Integer)it.next( );			exprManager.setEntryGroupLevel( level.intValue( ) );						if(!ExpressionCompilerUtil.hasColumnRow( map.get( level ).toString( ), exprManager ))			{				exprManager.setEntryGroupLevel( ExprManager.OVERALL_GROUP );				throw new DataException( ResourceConstants.INVALID_GROUP_KEY, new Object[]{ map.get( level ).toString( ), level});			}		}	}