# Crashlytics - plaintext stacktrace downloaded by venkateswararao at Sat, 28 Oct 2017 11:36:58 GMT
# URL: https://fabric.io/development11111111111503997430/android/apps/in.co.gorest.grblcontroller/issues/59f4238261b02d480d5597f3/sessions/59F420B202310001298406F8E53855E2_2fb1113cbba911e7a40656847afe9799_0_v2
# Organization: Development
# Platform: android
# Application: Grbl Controller
# Version: 1.8 (11)
# Bundle Identifier: in.co.gorest.grblcontroller
# Issue #: 38
# Issue ID: 59f4238261b02d480d5597f3
# Session ID: 59F420B202310001298406F8E53855E2_2fb1113cbba911e7a40656847afe9799_0_v2
# Date: 2017-10-28T06:28:00Z
# OS Version: 7.1.1
# Device: Aquaris U Plus
# RAM Free: 34.4%
# Disk Free: 8.6%

#0. Crashed: main: 0 0 0x0000000000000000
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.onRequestPermissionsResult(FileSenderTabFragment.java:350)
       at android.support.v4.app.FragmentActivity.onRequestPermissionsResult(FragmentActivity.java:760)
       at android.app.Activity.requestPermissions(Activity.java:4157)
       at android.support.v4.app.ActivityCompatApi23.requestPermissions(ActivityCompatApi23.java:47)
       at android.support.v4.app.ActivityCompat.requestPermissions(ActivityCompat.java:369)
       at android.support.v4.app.FragmentActivity.requestPermissionsFromFragment(FragmentActivity.java:850)
       at android.support.v4.app.FragmentActivity$HostCallbacks.onRequestPermissionsFromFragment(FragmentActivity.java:910)
       at android.support.v4.app.Fragment.requestPermissions(Fragment.java:1111)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.askExternalReadPermission(FileSenderTabFragment.java:342)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.access$200(FileSenderTabFragment.java:46)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment$1.onClick(FileSenderTabFragment.java:94)
       at android.view.View.performClick(View.java:5637)
       at android.view.View$PerformClick.run(View.java:22433)
       at android.os.Handler.handleCallback(Handler.java:751)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6119)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

--

Fatal Exception: java.lang.ArrayIndexOutOfBoundsException: length=0; index=0
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.onRequestPermissionsResult(FileSenderTabFragment.java:350)
       at android.support.v4.app.FragmentActivity.onRequestPermissionsResult(FragmentActivity.java:760)
       at android.app.Activity.requestPermissions(Activity.java:4157)
       at android.support.v4.app.ActivityCompatApi23.requestPermissions(ActivityCompatApi23.java:47)
       at android.support.v4.app.ActivityCompat.requestPermissions(ActivityCompat.java:369)
       at android.support.v4.app.FragmentActivity.requestPermissionsFromFragment(FragmentActivity.java:850)
       at android.support.v4.app.FragmentActivity$HostCallbacks.onRequestPermissionsFromFragment(FragmentActivity.java:910)
       at android.support.v4.app.Fragment.requestPermissions(Fragment.java:1111)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.askExternalReadPermission(FileSenderTabFragment.java:342)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.access$200(FileSenderTabFragment.java:46)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment$1.onClick(FileSenderTabFragment.java:94)
       at android.view.View.performClick(View.java:5637)
       at android.view.View$PerformClick.run(View.java:22433)
       at android.os.Handler.handleCallback(Handler.java:751)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6119)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

#0. Crashed: main: 0 0 0x0000000000000000
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.onRequestPermissionsResult(FileSenderTabFragment.java:350)
       at android.support.v4.app.FragmentActivity.onRequestPermissionsResult(FragmentActivity.java:760)
       at android.app.Activity.requestPermissions(Activity.java:4157)
       at android.support.v4.app.ActivityCompatApi23.requestPermissions(ActivityCompatApi23.java:47)
       at android.support.v4.app.ActivityCompat.requestPermissions(ActivityCompat.java:369)
       at android.support.v4.app.FragmentActivity.requestPermissionsFromFragment(FragmentActivity.java:850)
       at android.support.v4.app.FragmentActivity$HostCallbacks.onRequestPermissionsFromFragment(FragmentActivity.java:910)
       at android.support.v4.app.Fragment.requestPermissions(Fragment.java:1111)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.askExternalReadPermission(FileSenderTabFragment.java:342)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment.access$200(FileSenderTabFragment.java:46)
       at in.co.gorest.grblcontroller.ui.FileSenderTabFragment$1.onClick(FileSenderTabFragment.java:94)
       at android.view.View.performClick(View.java:5637)
       at android.view.View$PerformClick.run(View.java:22433)
       at android.os.Handler.handleCallback(Handler.java:751)
       at android.os.Handler.dispatchMessage(Handler.java:95)
       at android.os.Looper.loop(Looper.java:154)
       at android.app.ActivityThread.main(ActivityThread.java:6119)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

#1. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#2. FinalizerDaemon
       at java.lang.Object.wait(Object.java)
       at java.lang.Object.wait(Object.java:407)
       at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:188)
       at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:209)
       at java.lang.Daemons$FinalizerDaemon.run(Daemons.java:204)
       at java.lang.Thread.run(Thread.java:761)

#3. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#4. pool-5-thread-1
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#5. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#6. Answers Events Handler1
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:201)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2077)
       at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1103)
       at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1084)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at io.fabric.sdk.android.services.common.ExecutorUtils$1$1.onRun(ExecutorUtils.java:75)
       at io.fabric.sdk.android.services.common.BackgroundPriorityRunnable.run(BackgroundPriorityRunnable.java:30)
       at java.lang.Thread.run(Thread.java:761)

#7. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#8. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#9. ReferenceQueueDaemon
       at java.lang.Object.wait(Object.java)
       at java.lang.Daemons$ReferenceQueueDaemon.run(Daemons.java:150)
       at java.lang.Thread.run(Thread.java:761)

#10. FinalizerWatchdogDaemon
       at java.lang.Object.wait(Object.java)
       at java.lang.Daemons$FinalizerWatchdogDaemon.sleepUntilNeeded(Daemons.java:269)
       at java.lang.Daemons$FinalizerWatchdogDaemon.run(Daemons.java:249)
       at java.lang.Thread.run(Thread.java:761)

#11. OkHttp ConnectionPool
       at java.lang.Object.wait(Object.java)
       at com.android.okhttp.ConnectionPool.performCleanup(ConnectionPool.java:307)
       at com.android.okhttp.ConnectionPool.runCleanupUntilPoolIsEmpty(ConnectionPool.java:244)
       at com.android.okhttp.ConnectionPool.-wrap0(ConnectionPool.java)
       at com.android.okhttp.ConnectionPool$1.run(ConnectionPool.java:98)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#12. pool-8-thread-1
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:201)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2077)
       at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1103)
       at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1084)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#13. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#14. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#15. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#16. Thread-22
       at android.net.LocalSocketImpl.readba_native(LocalSocketImpl.java)
       at android.net.LocalSocketImpl.-wrap1(LocalSocketImpl.java)
       at android.net.LocalSocketImpl$SocketInputStream.read(LocalSocketImpl.java:110)
       at android.bluetooth.BluetoothSocket.read(BluetoothSocket.java:571)
       at android.bluetooth.BluetoothInputStream.read(BluetoothInputStream.java:96)
       at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:287)
       at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:350)
       at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:179)
       at java.io.InputStreamReader.read(InputStreamReader.java:184)
       at java.io.BufferedReader.fill(BufferedReader.java:172)
       at java.io.BufferedReader.readLine(BufferedReader.java:335)
       at java.io.BufferedReader.readLine(BufferedReader.java:400)
       at in.co.gorest.grblcontroller.service.SerialThreadService$ConnectedThread.run(SerialThreadService.java:425)

#17. pool-4-thread-1
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:413)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#18. Crashlytics Exception Handler1
       at dalvik.system.VMStack.getThreadStackTrace(VMStack.java)
       at java.lang.Thread.getStackTrace(Thread.java:1566)
       at java.lang.Thread.getAllStackTraces(Thread.java:1616)
       at com.crashlytics.android.core.CrashlyticsController.writeSessionEvent(CrashlyticsController.java:1114)
       at com.crashlytics.android.core.CrashlyticsController.writeFatal(CrashlyticsController.java:852)
       at com.crashlytics.android.core.CrashlyticsController.access$400(CrashlyticsController.java:59)
       at com.crashlytics.android.core.CrashlyticsController$6.call(CrashlyticsController.java:292)
       at com.crashlytics.android.core.CrashlyticsController$6.call(CrashlyticsController.java:285)
       at java.util.concurrent.FutureTask.run(FutureTask.java:237)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at io.fabric.sdk.android.services.common.ExecutorUtils$1$1.onRun(ExecutorUtils.java:75)
       at io.fabric.sdk.android.services.common.BackgroundPriorityRunnable.run(BackgroundPriorityRunnable.java:30)
       at java.lang.Thread.run(Thread.java:761)

#19. Queue
       at java.lang.Object.wait(Object.java)
       at java.lang.Thread.parkFor$(Thread.java:2127)
       at sun.misc.Unsafe.park(Unsafe.java:325)
       at java.util.concurrent.locks.LockSupport.park(LockSupport.java:161)
       at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2035)
       at java.util.concurrent.PriorityBlockingQueue.take(PriorityBlockingQueue.java:519)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.performOperation(DependencyPriorityBlockingQueue.java:197)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.get(DependencyPriorityBlockingQueue.java:236)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:65)
       at io.fabric.sdk.android.services.concurrency.DependencyPriorityBlockingQueue.take(DependencyPriorityBlockingQueue.java:46)
       at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1058)
       at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1118)
       at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607)
       at java.lang.Thread.run(Thread.java:761)

#20. HeapTaskDaemon
       at dalvik.system.VMRuntime.runHeapTasks(VMRuntime.java)
       at java.lang.Daemons$HeapTaskDaemon.run(Daemons.java:433)
       at java.lang.Thread.run(Thread.java:761)