An error found while back to home page after a note saved

[shihabmi7]

We first thanks for create this awesome working demo with newest android arch component room.

after i forked the git and run the application in android 8.1 orio; i found an error .

09-20 17:12:49.027 9717-9830/com.an.room E/AndroidRuntime: FATAL EXCEPTION: pool-1-thread-2 Process: com.an.room, PID: 9717 java.lang.ArrayIndexOutOfBoundsException: length=19; index=-1 at android.icu.text.DigitList.isIntegral(DigitList.java:289) at android.icu.text.DecimalFormat.parse(DecimalFormat.java:2034) at android.icu.text.DecimalFormat.parse(DecimalFormat.java:1931) at java.text.DecimalFormat.parse(DecimalFormat.java:804) at java.text.SimpleDateFormat.subParse(SimpleDateFormat.java:2353) at java.text.SimpleDateFormat.parseInternal(SimpleDateFormat.java:1615) at java.text.SimpleDateFormat.parse(SimpleDateFormat.java:1528) at java.text.DateFormat.parse(DateFormat.java:360) at com.an.room.util.TimestampConverter.fromTimestamp(TimestampConverter.java:21) at com.an.room.dao.DaoAccess_Impl$4.compute(DaoAccess_Impl.java:218) at com.an.room.dao.DaoAccess_Impl$4.compute(DaoAccess_Impl.java:174) at android.arch.lifecycle.ComputableLiveData$2.run(ComputableLiveData.java:100) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636) at java.lang.Thread.run(Thread.java:764) 09

It seems error occurred while converting time from timestamp to date. hope you will see that happened exactly.