IllegalStateException when removing an object with iterator

Question

I\'ve been strugling with this bug since a while and I don\'t know where the problem is. My code is like this :

ArrayList lTmpIndicsDesc = new          


        

Answer 1

You are removing an element from the lTmpIndicsDesc List from inside the inner loop. This means your inner loop might try to remove the same element twice, which would explain the exception you got. You should break from the inner loop after removing the element:

for (Iterator<String> itIndicsDesc = lTmpIndicsDesc.iterator(); itIndicsDesc.hasNext();) {
    String sTmpIndicsDesc = itIndicsDesc.next();
    for (Iterator<String> itIndicsAvailableMark = lTmpIndicsAvailableMark.iterator(); itIndicsAvailableMark.hasNext();) {
        String sTmpIndicsAvailableMark = itIndicsAvailableMark.next();
        if (sTmpIndicsDesc.toUpperCase().equals(sTmpIndicsAvailableMark.toUpperCase())) {
            itIndicsDesc.remove();
            break; // added
        }
    }
}