java.lang.IllegalStateException: Main thread not allowed to quit.

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java.lang.IllegalStateException: Main thread not allowed to quit.
at android.os.MessageQueue.quit(MessageQueue.java:415)
at android.os.Looper.quit(Looper.java:228)
at com.nursson.pomodorotimer.service.PomodoroService$1$override.onFinish(PomodoroService.java:44)
at com.nursson.pomodorotimer.service.PomodoroService$1$override.access$dispatch(PomodoroService.java)
at com.nursson.pomodorotimer.service.PomodoroService$1.onFinish(PomodoroService.java:0)
at android.os.CountDownTimer$1.handleMessage(CountDownTimer.java:127)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)

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