In the security demo, I have set the rows for the autocomplete component at 15 and my matchesList bound to the component has 7 items. The first time I use the autocomplete component and type in the letter "a" it brings up all 7 items from the list that is bound to the component. After I make a selection, and type in "a" again, it returns a list ranging from 1 item to 6 items. In the bean, I found

int maxMatches = ((SelectInputText)event.getComponent()).getRows();

was returning an inaccurate number after the first selection was made. In the bean logic, this number is used to populate the matchesList in the bean. Further debugging code in the getRows() method of the component revealed that under these circumstances when getRows() is called, the itemMap size is inaccurate.

I was able to re-create this issue with component-showcase on the icefaces.org site. This issue does not manifest itself when the number of items in the matchesList matches the number of rows (which is set to 15). However, when you input "zu" you get the last 7 items in the matchesList. After making a selection, if you use the component again, you will see less than 15 items in the matchesList where previously there were 15. For example, when entering the letter "a".