java.util.ConcurrentModificationException: This exception has no message.

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Solutions on the web

via Hibernate JIRA by Kenneth Flynn, 1 year ago
This exception has no message.
via Hibernate JIRA by Kenneth Flynn, 1 year ago
This exception has no message.
via Google Groups by Unknown author, 10 months ago
This exception has no message.
via GitHub by Zet5
, 2 years ago
This exception has no message.
java.util.ConcurrentModificationException:
at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
at com.darkcorner.minotaur.sa.redline.RedlineDatabaseControl.ensureRunning(RedlineDatabaseControl.java:101)
at com.darkcorner.minotaur.sa.redline.RedlineService.restartService(RedlineService.java:316)
at com.darkcorner.harmonice.ServiceHandler.callRestart(ServiceHandler.java:241)
at com.darkcorner.harmonice.ServiceHandler.access$000(ServiceHandler.java:56)
at com.darkcorner.harmonice.ServiceHandler$RestartTask.run(ServiceHandler.java:63)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:98)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:207)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)

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