fix concurrent modification error Mooresburg Tennessee

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fix concurrent modification error Mooresburg, Tennessee

When I deleted one characater or more in my autocompletetext I got force close. It is the recommended approach.To Avoid ConcurrentModificationException in single-threaded environment:You can use the iterator remove() function to remove the object from underlying collection object. assist. removing elements while looping over the list.

Some Iterator implementations (including those of all the collection implementations provided by the JRE) may choose to throw this exception if this behavior is detected. Are RingCT signatures malleable? Iterator ite = list.iterator(); Iterator ite2 = list.iterator(); // Point to the first object of the list and then, remove it. for(int i = 0; i

Why is the spacesuit design so strange in Sunshine? This is good if writes are fairly infrequent. So If you have a blog with unique and interesting content then you should check out our JCG partners program. Browse other questions tagged java exception arrays concurrentmodification or ask your own question.

Spring Interview Questions7. Also, you must not modifying the collection (adding / removing) while iterating on it with an Iterator. It actually was a leisure account it.Glance complex to more added agreeable from you! While in reality ConcurrentModficationException can also come on the single threaded environment.

In the United States is racial, ethnic, or national preference an acceptable hiring practice for departments or companies in some situations? As it is now (with final), that's not possible. jsonArr=new JSONArray(); if(req.getSession().getAttribute("userses")!=null){ String name=(req.getParameter("name")==null?"":to_EnglishName(req.getParameter("name").toUpperCase())); if(!name.equals("")){ for(Book c:GlobalObjects.bookList){ if(c.getBookName().startsWith(name)){ jsonObjec=new JSONObject(); jsonObjec.put("label",c.getBookName()); jsonObjec.put("value", c.getId()); jsonArr.add(jsonObjec);//java.util.ConcurrentModificationException } } } } jsonArr.write(res.getWriter()); java exception arrays concurrentmodification share|improve this question asked Jul 10 '12 Please consider adding a stand-alone synopsis here, keeping the link as a reference –Alex Sep 25 '13 at 12:14 While this link may answer the question, it is better

Not sure if its fixed in Java 7, however. Iterators that do this are known as fail-fast iterators, as they fail quickly and cleanly, rather that risking arbitrary, non-deterministic behavior at an undetermined time in the future. And why do you think it's a JRE-specific issue? Even if common sense is telling you it really should be done.

True, but from the CCME docs: Note that fail-fast behavior cannot be guaranteed [snip]. Simplest solution: Have a boolean representing the section's availability. If aliplane is getting CME at the line mentioned, then jsonArr should be modified from another location or thread. –18bytes Jul 10 '12 at 6:29 add a comment| up vote 0 How to fix this? 7 How to keep two iterators over map in java and remove keys in between without ConcurrentModificationException Related 1874When to use LinkedList over ArrayList?90How to fix

For example, it is not generally permissible for one thread to modify a Collection while another thread is iterating over it. Anyway, we all agree that the error is due to the iteration/modification thing, and you're right to point my post was not clear. Thanks for the tip.Reply Tiru saysAugust 7, 2014 at 4:12 am For the List use case, instead of myList.remove(object), using it.remove() works.Reply Pankaj saysJune 9, 2016 at 12:42 pm Yes this yet another stopover of references, which tend to get stale over time).

EDIT ConcurrentModificationExeption sounds like taskCollection is accessed and modified by multiple threads at the same time (we can not say regarding the piece of code you provide if your program is If you share taskCollection between several threads, use a thread-safe list implementation. Exam... Both Iterator and ListIterator uses this field to detect unexpected change.

Here is the code snippet from hasNext() method which shows there is check for modCount: public E next() { checkForComodification(); int i = cursor; if (i >= size) throw new NoSuchElementException(); Are independent variables really independent? Not the answer you're looking for? How would you help a snapping turtle cross the road?

Good Term For "Mild" Error (Software) Replace lines matching a pattern with lines from another file in order Pronuncia strana della "s" dopo una "r": un fenomeno romano o di tutta Required fields are marked *CommentName * Email * Website Current [email protected] * Leave this field empty Connect with us Stay Updated! EvenSt-ring C ode - g ol!f Can Communism become a stable economic strategy? Other methods of List which structurally modify List also uses this method e.g.

And then only rarely - but when they happen, they're a real pain to track down. thanks much.. :)Reply Zbonger Masangu June 19th, 2013 at 3:44 pmI use to come across this issue every now and then until someone suggested that I loop backwards and modify the If you modify the collection by adding or removing element then modCount will change and it will not match with the expected modCount, hence Iterator will throw ConcurrentModificationException. It's nonstandard, confusing code that serves no purpose.

Can I buy my plane ticket to exit the US to Mexico? One approach is something like this: class MyClass { private final List myList = makeList(); private static list makeList() { List list = new ArrayList(); // do what you need to What are Imperial officers wearing here? No, create an account now.

Browse other questions tagged android arraylist autocompletetextview or ask your own question. If you are wondering how Iterator checks for the modification, its implementation is present in AbstractList class where an int variable modCount is defined. The object does * not exist and thus, a ConcurrentModificationException is thrown. */; ite2.remove(); } } share|improve this answer answered Oct 15 '14 at 7:39 vinoth10 374 add a comment| public static void main(String args[]) { Set set = new HashSet(); set.add("A"); set.add("B"); for (String s : set) { if (s.equals("B")) { set.remove(s); } } } public static void main(String

because you broke the rule of not modifying a Collection during iteration. Appease Your Google Overlords: Draw the "G" Logo more hot questions question feed lang-java about us tour help blog chat data legal privacy policy work here advertising info mobile contact us Name E-Mail Address Recommended TutorialsJava Tutorials: Java IO Tutorial, Java Regular Expressions Tutorial, Multithreading in Java, Java Logging API Tutorial, Java Annotations,Java XML Tutorial, Collections in Java, Java Generics, Exception Handling But in this case you can remove the same object and not any other object from the list.Let us run an example using Concurrent Collection classes:package; import java.util.Iterator; import java.util.List;

Offline gregroberti Got it, thanks guys! Anybody knows what happen with that ? If a single thread issues a sequence of method invocations that violates the contract of an object, the object may throw this exception. Explained really neat and simple.Reply Pankaj saysJune 9, 2016 at 12:43 pm Thanks for nice words Rob.Reply RaviKant Gaur saysJune 28, 2014 at 11:30 am nice explanation on ConcurrentModificationException….thnanks,Reply Pankaj saysJune

The line this.sections.add(newSection); throwing the exception. How do I explain that this is a terrible idea? How to convert float to int in Java? Iterators allow the caller to remove elements from the underlying collection during the iteration.

This approach works well for small or medium size list but if the list is large then it will affect the performance a lot.2. Akram Ahmad Your suggestion to use "CopyOnWriteArrayList" is brilliantly helpful. It did throw "java.util.ConcurrentModificationException" why ?