Crash at TedPermissionActivity.java line 124

[madlymad]

Hi,

In one of my apps I got the following crash on crashlytics reporting.
It is one crash but both stacktraces where available on firebase:

Fatal Exception: java.lang.RuntimeException: Unable to start activity ComponentInfo{com.madlymad.uptime/com.gun0912.tedpermission.TedPermissionActivity}: java.lang.NullPointerException: Attempt to get length of null array
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
       at android.app.ActivityThread.-wrap11(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:164)
       at android.app.ActivityThread.main(ActivityThread.java:6494)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

Caused by java.lang.NullPointerException: Attempt to get length of null array
       at com.gun0912.tedpermission.TedPermissionActivity.needWindowPermission(TedPermissionActivity.java:124)
       at com.gun0912.tedpermission.TedPermissionActivity.onCreate(TedPermissionActivity.java:77)
       at android.app.Activity.performCreate(Activity.java:7009)
       at android.app.Activity.performCreate(Activity.java:7000)
       at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
       at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
       at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
       at android.app.ActivityThread.-wrap11(ActivityThread.java)
       at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
       at android.os.Handler.dispatchMessage(Handler.java:106)
       at android.os.Looper.loop(Looper.java:164)
       at android.app.ActivityThread.main(ActivityThread.java:6494)
       at java.lang.reflect.Method.invoke(Method.java)
       at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
       at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)

The version of the library that I am using is 2.2.2 but checking the crashing line it looks to me that the crash is still valid in latest master.

Sadly I do not have much information how the user ended up with the crash but it seems that there are cases that the code is triggered and the "permissions" array is not initialized.

The library usage on my code is done here

Device info crash:
Brand: LGE
Model: Nexus 5X
Version: 8.1.0

I remain at your disposal for any further information.