synchronization on an arrayList java

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Synchronization of non-final field

I have an arrayList and when i use this:

//declare it as a global ArrayList
private ArrayList <Human> myList = new ArrayList <Human>() ;

//inside a method
synchronized (myList){     
    for(  ListIterator<Human> it = myList.listIterator();it.hasNext();){  
       Human = it.next();

it tells me Synchronization on non-final field. what should i do?

http://stackoverflow.com/questions/6910807/synchronization-of-non-final-field — kosa, Feb 09 '12 at 20:08
i search on the internet not in stackoverflow. i'm sorry guys.how can i delete this? — arnold leki, Feb 09 '12 at 20:09
At the bottom of the question, under the tags, there should be a `delete` link. — Kevin K, Feb 09 '12 at 20:17
There are delete and close buttons under the Tags of your question, use it — Adel Boutros, Feb 09 '12 at 20:18

score 2 · Answer 1 · answered Feb 09 '12 at 20:09

You can synchronize on non-final field (myList on this example)

You can use synchronized block without parameter

synchronized{     
    for(  ListIterator<Human> it = myList.listIterator();it.hasNext();){  
       Human = it.next();

Or create another class property with "final" attribute.

PS. You can use foreach loop as well

for(Human h : myList){  
           h.getName();
}

synchronization on an arrayList java

1 Answers1