exception - Android: Error when scrolling down to the bottom of an ListView -

I got an error that I did not know, I'm using a list when I scroll down below It throws an error in the list, why does this happen? I'm getting stuff from the service, and everything looks fine in ListView . Error / Android Runtime (609): Fatal Exception: Key 09-25 16

: 58: 01.865: Error / Android Random (609): java.lang.NullPointerException 09-25 16:58: 01.865: Error / Android Randomime (609): Android. On Avid Arrayadaptor.Sent VIFRSOSR (Arrayedator.Java 355) 09- 25 16: 58: 01.865: Error / Android Random (609): For Android. Widgets Array Adapter.Getview (Arrayadapter.java3) .... ....

It seems that an object in the ArrayAdapter is zero - so if you scroll down on that item, you will get a NullPointerException.