Question

I get a weird problem. Getting java.util.ConcurrentModificationException. But I’m not modifying the current collection. Please help.

Method Call

setAllAddress((List<AddressBean>) usrProfileResp.getAddressBeanList());
setShippingAddresses(getAllAddress());

Methods

public List<AddressBean> getAllAddress() {
    return allAddress;
}

public void setShippingAddresses(List<AddressTokenBean> shippingAddresses) {
        shippingAddresses = new ArrayList<AddressBean>();
        List<AddressBean> addresses = getAllAddress();
        if (addresses != null && addresses.size() > 0) { 
            for (AddressBean addr : addresses) { // EXCEPTION OCCURS HERE
                if (!Constants.BILLING_ADDRESS.equals(addr.getAddressType())) {                    
                    shippingAddresses.add(addr);                
                }
            }
        }
}

Answer 1

The most likely explaination is that addresses and shippingAddresses refer to the same collection. You can check this in your debugger.

Does getAllAddresses() use shippingAddresses at all?

Are you sure this collection is not being modifed in another thread? Does this happen all the time or only occasionally?