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.lowestGroupLevel = queryDefn.getGroups( ).size( );
		this.start( );
		logger.logp( Level.FINER,
				ResultIterator.class.getName( ),
				"ResultIterator",
				"ResultIterator starts up" );
	}
	/*
	 * @see org.eclipse.birt.data.engine.api.IResultIterator#getScope()
	 */
	public Scriptable getScope( )
	{
		return scope;
	}
	/**
	 * Internal method to start the iterator; must be called before any other
	 * method can be used
	 */
	private void start( ) throws DataException
	{
		assert state == NOT_STARTED;
		
		
		state = BEFORE_FIRST_ROW;
	}
	
	/**
	 * Checks to make sure the iterator has started. Throws exception if it has
	 * not.
	 */