attempt to re-open an already-closed object

[Đại Trần Bá]

Why occur exception if i reopen application:

Process: com.example.son.kotlinandroiddemo, PID: 14642
                  java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.son.kotlinandroiddemo/com.example.son.kotlinandroiddemo.ListData}: java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase: /data/user/0/com.example.son.kotlinandroiddemo/databases/test.db
                      at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
                      at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
                      at android.app.ActivityThread.-wrap11(Unknown Source:0)
                      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1589)
                      at android.os.Handler.dispatchMessage(Handler.java:106)
                      at android.os.Looper.loop(Looper.java:164)
                      at android.app.ActivityThread.main(ActivityThread.java:6494)
                      at java.lang.reflect.Method.invoke(Native Method)
                      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
                      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
                   Caused by: java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase: /data/user/0/com.example.son.kotlinandroiddemo/databases/test.db
                      at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55)
                      at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1388)
                      at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1331)
                      at com.j256.ormlite.android.compat.JellyBeanApiCompatibility.rawQuery(JellyBeanApiCompatibility.java:21)
                      at com.j256.ormlite.android.AndroidCompiledStatement.getCursor(AndroidCompiledStatement.java:193)
                      at com.j256.ormlite.android.AndroidCompiledStatement.runQuery(AndroidCompiledStatement.java:72)
                      at com.j256.ormlite.stmt.SelectIterator.<init>(SelectIterator.java:57)
                  

[Gray Watson]

I don't know specifically. ORMLite is just trying to issue a query but the underlying database entry has been closed. I believe it means that your application is not properly detecting when it has been partially closed so it needs to reopen the database classes like DAOs.

gray

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