Bug 124597 Error message pop up which from length of JS-Expression is error
Details: Error message pop up which from length of JS-Expression is error Setp: 1.New a datasource and dataset contain "row["First"]" 2.Insert a table in layout and a data in details 3.Input "row["FIRST"].length" in data expression 4.Preview Actual result: "FIRST" is a error input words, but it can preview some words in table: org.eclipse.birt.data.engine.script.DataExceptionMocker@1502283 But it has not pop up some error message. Expection result: Pop up an error message
data/org.eclipse.birt.data/src/org/eclipse/birt/data/engine/impl/ResultIterator.java
this.query = query;
			this.resultIterator = resultIterator;
		}
		
		/**
		 * @param query
		 * @param resultIterator
		 * @param groupKeyValues
		 * @return
		 * @throws BirtException
		 */
		public boolean findGroup( Object[] groupKeyValues )
				throws BirtException
		{
			org.eclipse.birt.data.engine.odi.IResultIterator odiResult = resultIterator.getOdiResult( );
			
			List groups = query.getQueryDefn( ).getGroups( );
			if ( groupKeyValues.length > groups.size( ) )
				throw new DataException( ResourceConstants.INCORRECT_GROUP_KEY_VALUES );
			GroupDefinition group = null;
			String[] columnNames = new String[groupKeyValues.length];
			for ( int i = 0; i < columnNames.length; i++ )
			{
				group = (GroupDefinition) groups.get( i );
				columnNames[i] = getGroupKeyColumnName( group );
			}
			
			odiResult.first( 0 );
			if ( odiResult.getCurrentResult( ) == null )
				return false;