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  1. ,
    via by Unknown author

    Causes : The Collection is internally modified, while a thread is iterating over it. OR after the creation of an iterator, the Collection is internally modified by any method other than the iterator’s own methods for removal and addition.

  2. ,
    via by Unknown author

    In order to avoid more than one threads accessing or modifying the same object, you can synchronize them over the object, in order to allow only one thread to manipulate it over time.

Solutions on the web

via GitHub by gustav9797
, 9 months ago
This exception has no message.
via GitHub by omatic-hacker
, 1 year ago
This exception has no message.
via Coderanch by Migrated From, 1 year ago
This exception has no message.
via Coderanch by Manoj Maniraj, 1 year ago
This exception has no message.
via Eclipse Bugzilla by siddharthgarg1984, 1 year ago
via Eclipse Bugzilla by cap, 1 year ago
This exception has no message.
java.util.ConcurrentModificationException: 	at java.util.ArrayList$Itr.checkForComodification(	at java.util.ArrayList$	at	at$1.aboutToTerminate(	at	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(	at sun.reflect.DelegatingMethodAccessorImpl.invoke(	at java.lang.reflect.Method.invoke(	at com.intellij.execution.process.ProcessHandler$4.invoke(	at com.sun.proxy.$Proxy14.processWillTerminate(Unknown Source)	at com.intellij.execution.process.ProcessHandler.fireProcessWillTerminate(	at com.intellij.execution.process.ProcessHandler.access$200(	at com.intellij.execution.process.ProcessHandler$	at com.intellij.execution.process.ProcessHandler$TasksRunner.execute(	at com.intellij.execution.process.ProcessHandler.destroyProcess(	at com.intellij.xdebugger.impl.XDebugSessionImpl.stop(	at com.jetbrains.lang.dart.ide.runner.server.vmService.DartVmServiceDebugProcessZ.lambda$scheduleConnectNew$5(	at com.intellij.openapi.application.impl.ApplicationImpl$	at java.util.concurrent.Executors$	at	at java.util.concurrent.ThreadPoolExecutor.runWorker(	at java.util.concurrent.ThreadPoolExecutor$	at