java.lang.NullPointerException: This exception has no message.

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java.lang.NullPointerException:
at com.android.systemui.usb.StorageNotification.onUsbMassStorageConnectionChangedAsync(StorageNotification.java:103)
at com.android.systemui.usb.StorageNotification.access$000(StorageNotification.java:34)
at com.android.systemui.usb.StorageNotification$1.run(StorageNotification.java:92)
at android.os.Handler.handleCallback(Handler.java:725)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.os.HandlerThread.run(HandlerThread.java:60)

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