ConcurrentModificationException from multiple add()'s

[ruckc]

I'm thinking this is from calling add() multiple times back to back... instead of using addAll()

java.util.ConcurrentModificationException
at java.util.ArrayList$ArrayListIterator.next(ArrayList.java:569)
at com.twotoasters.clusterkraf.ClustersBuilder.addAll(ClustersBuilder.java:54)
at com.twotoasters.clusterkraf.ClusteringTask.doInBackground(ClusteringTask.java:34)
at com.twotoasters.clusterkraf.ClusteringTask.doInBackground(ClusteringTask.java:1)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
at java.util.concurrent.FutureTask.run(FutureTask.java:137)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
at java.lang.Thread.run(Thread.java:856)

[curtpm]

+1

[alexkipar]

the same on numerous addAll call on map scrolling

java.util.ConcurrentModificationException
at java.util.ArrayList$ArrayListIterator.next(ArrayList.java:573)
at com.twotoasters.clusterkraf.ClustersBuilder.addAll(ClustersBuilder.java:54)
at com.twotoasters.clusterkraf.ClusteringTask.doInBackground(ClusteringTask.java:34)
at com.twotoasters.clusterkraf.ClusteringTask.doInBackground(ClusteringTask.java:15)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:841)