Crash Info:
BOARD=c72c_37t
BOOTLOADER=unknown
BRAND=wtk
CPU_ABI=arm64-v8a
CPU_ABI2=
CW_MODEL=mtk.6735.c72c
DEVICE=c72
DISPLAY=C72C_MT6737T_V1.1_AS2_GITd1e22dc_20181219
FINGERPRINT=wtk/c72c/c72:6.0/MRA58K/1545222194:user/release-keys
HARDWARE=mt6735
HARDWAREVERSION=unknown
HOST=chainway-PowerEdge-R730
ID=MRA58K
IS_DEBUGGABLE=false
MANUFACTURER=wtk
MODEL=C72
PRODUCT=c72c
RADIO=unknown
SERIAL=HC720C190600226
SUPPORTED_32_BIT_ABIS=[Ljava.lang.String;@2154100
SUPPORTED_64_BIT_ABIS=[Ljava.lang.String;@2dadd39
SUPPORTED_ABIS=[Ljava.lang.String;@9adbf7e
TAG=Build
TAGS=release-keys
TIME=1545223275000
TYPE=user
UNKNOWN=unknown
USER=hejiang
VERSION_CODE=19
VERSION_NAME=0.1.9-uat
customModelNumber=/data/model

java.lang.RuntimeException: Unable to destroy activity {com.etoon.warehouse.pda.uat/com.etoon.warehouse.pda.activity.stockcheck.IbcStockCheckActivity}: java.lang.NullPointerException: Attempt to invoke interface method 'boolean d.a.m.b.b()' on a null object reference
	at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4082)
	at android.app.ActivityThread.handleDestroyActivity(ActivityThread.java:4100)
	at android.app.ActivityThread.-wrap5(ActivityThread.java)
	at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1559)
	at android.os.Handler.dispatchMessage(Handler.java:111)
	at android.os.Looper.loop(Looper.java:207)
	at android.app.ActivityThread.main(ActivityThread.java:5778)
	at java.lang.reflect.Method.invoke(Native Method)
	at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:679)
Caused by: java.lang.NullPointerException: Attempt to invoke interface method 'boolean d.a.m.b.b()' on a null object reference
	at com.etoon.warehouse.pda.activity.stockcheck.IbcStockCheckActivity.onDestroy()
	at android.app.Activity.performDestroy(Activity.java:6491)
	at android.app.Instrumentation.callActivityOnDestroy(Instrumentation.java:1149)
	at android.app.ActivityThread.performDestroyActivity(ActivityThread.java:4069)
	... 9 more