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
checkStarted( );
		boolean hasNext = false;
		
		if ( state == BEFORE_FIRST_ROW )
		{
			state = ON_ROW;
			hasNext = odiResult.getCurrentResult( ) != null;
		}
		else
		{
			hasNext = odiResult.next( );
		}
		
		if ( useDetails == false && hasNext )
		{
			savedStartingGroupLevel = odiResult.getStartingGroupLevel( );
			odiResult.last( lowestGroupLevel );
		}
		logger.logp( Level.FINE,
				ResultIterator.class.getName( ),
				"next",
				"Moves down to the next element" );
		
		if ( ! hasNext )
			state = AFTER_LAST_ROW;
		
		return hasNext;
	}
	/**
	 * @param expr