org.edx.mobile.module.db.impl.DbOperationBase: java.lang.IllegalArgumentException: the bind value at index 1 is null

[FDoubleman]

hi
I'm sorry to bother again. --__--#.
i find a issue，when i use network to request some data .In my logcat have very mach err Log ：
like this ：

05-19 16:03:26.444 21343-21343/org.edx.mobile D/org.edx.mobile.util.NetworkUtil: Wifi is connected 05-19 16:03:26.448 21343-21343/org.edx.mobile E/org.edx.mobile.module.db.impl.DbOperationBase: java.lang.IllegalArgumentException: the bind value at index 1 is null at android.database.sqlite.SQLiteProgram.bindString(SQLiteProgram.java:169) at android.database.sqlite.SQLiteProgram.bindAllArgsAsStrings(SQLiteProgram.java:205) at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:47) at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1344) at android.database.sqlite.SQLiteDatabase.queryWithFactory(SQLiteDatabase.java:1186) at android.database.sqlite.SQLiteDatabase.query(SQLiteDatabase.java:1057) at com.newrelic.agent.android.instrumentation.SQLiteInstrumentation.query(SQLiteInstrumentation.java:25) at org.edx.mobile.module.db.impl.DbOperationSelect.getCursor(DbOperationSelect.java:29) at org.edx.mobile.module.db.impl.DbOperationExists.execute(DbOperationExists.java:15) at org.edx.mobile.module.db.impl.DbOperationExists.execute(DbOperationExists.java:6) at org.edx.mobile.module.db.impl.DbOperationBase.requestExecute(DbOperationBase.java:25) at org.edx.mobile.module.db.impl.IDatabaseBaseImpl.execute(IDatabaseBaseImpl.java:56) at org.edx.mobile.module.db.impl.IDatabaseBaseImpl.enqueue(IDatabaseBaseImpl.java:74) at org.edx.mobile.module.db.impl.IDatabaseImpl.enqueue(IDatabaseImpl.java:21) at org.edx.mobile.module.db.impl.IDatabaseImpl.isAnyVideoDownloading(IDatabaseImpl.java:51) at org.edx.mobile.base.BaseVideosDownloadStateActivity$2.run(BaseVideosDownloadStateActivity.java:42) at android.os.Handler.handleCallback(Handler.java:743) at android.os.Handler.dispatchMessage(Handler.java:95) at android.os.Looper.loop(Looper.java:150) at android.app.ActivityThread.main(ActivityThread.java:5546) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:794) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:684) 05-19 16:03:26.452 21343-21343/org.edx.mobile D/org.edx.mobile.util.NetworkUtil: Wifi is connected

[FDoubleman]

This log is also often appear：
org.edx.mobile D/NSD: curPkgName is not in list
Can you give me some methods to solve these problems(let "curPkgName is not in list" not show in my logcat )?
Forgive me my english is poor. thanks

[BenjiLee]

Do you have any reproduction steps?

[miankhalid]

Good catch @FDoubleman, I had been seeing those exceptions too.

Upon investigation here are the steps for reproduction:

1. Login using valid credentials.
2. Logout and you'll see the exception twice.
3. If you open up the Login Screen, the exception keeps on coming like crazy.

Exception's reason:
We are querying if a video is downloading using a recurring callback mechanism, which requires a logged in user's username. Consequently, passing null to where clause of the query, since we've logged out causing this exception.

I've created a ticket for this issue on our JIRA board, hopefully it'll get fixed soon:
https://openedx.atlassian.net/browse/MA-2738