Perhaps I'm sending the message from the service to the activity
incorrectly, and syncMarkers() ends up getting called from the
service's thread? If so, would anyone have any advice on the correct
way to send the message?
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This exception generally occurs, if you are iterating through it and
changing it simultaneously.
*Note that this implementation is not synchronized.* If multiple threads
access this map concurrently, and at least one of the threads modifies the
map structurally, it *must* be synchronized
First, a link to docs:
http://download.oracle.com/javase/1.4.2/docs/api/java/util/ConcurrentModificationException.html
I can see several possible causes for this, and you should get a more
detailed stack trace (more than inside syncMarkers):
1 - You have two threads concurrently accessing the
I'm afraid that didn't help. I now have:
public class MapViewActivity extends MapActivity {
private static MapString, Object markers =
Collections.synchronizedMap( new HashMapString, Object() );
and the problem still occurs.
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There might be other reasons to the problem. Kostya has mentioned all the
details regarding the exception. :)
Kumar Bibek
http://techdroid.kbeanie.com
http://www.kbeanie.com
On Mon, Jan 17, 2011 at 2:32 PM, AC alistair.cunning...@gmail.com wrote:
I'm afraid that didn't help. I now have:
Well, I don't know if that covered *all* the possibilities, but that's a
place to start :)
2011/1/17 Kumar Bibek coomar@gmail.com
There might be other reasons to the problem. Kostya has mentioned all the
details regarding the exception. :)
Kumar Bibek
http://techdroid.kbeanie.com
On Jan 17, 5:00 pm, Kostya Vasilyev kmans...@gmail.com wrote:
2 - As described in the link above, code that is trying to remove elements
from a collection while iterating, for example:
for (Item i : myHashMap.values()) {
if (some condition) {
myHashMap.remove(i.key);
}
}
After changing to iterator.remove() rather than removing from the Map,
the problem went away. Thank you very much!
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To
Cool.
I would also recommend that you change your code to send new data in the
message, like I described above.
If your netwoking code runs on a separate thread - which it should be - then
that global is like a dog waiting to bite you when you least expect.
-- Kostya
2011/1/17 AC
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